installation, operation & maintenance instructions...machined airlock installation, operation &...

MACHINED AIRLOCK

Installation, Operation & Maintenance Instructions

312 SOUTH HWY. 73, PO BOX 398 FALLS CITY, NE 68355-0398

800-500-9777

Revision Date 06/26/08

®

800-500-9777

FAX 402-245-5196 www.airlanco.com 2

Index Introduction ...................................................................................................................3 Receiving Your Equipment ...........................................................................................3 Contact information.......................................................................................................3 Meyer Airlock Installation & Maintenance Manual Ohio Gear Ironman Speed Reducer Manual

800-500-9777

FAX 402-245-5196 www.airlanco.com 3

Introduction AIRLANCO, along with all of our employees, thank you for selecting us to fulfill your needs for environmental control equipment. Machined airlocks provide a mechanically simple, efficient, and economical means to seal the discharge of dust filters and cyclones. The absolute minimum of moving parts enhances the efficiency and durability of the system. This manual will provide the information needed for an operator or maintenance technician to understand the mechanical operation of your AIRLANCO machined airlock.

Receiving Your Equipment A viaual inspection of your equipment should be performed before it is removed from the truck. Dents, scratches, and other damage should be noted and photographed. Any damage can adversly affect the performance of your airlock. Notify AIRLANCO immediately of any damage to your equipment. Packing lists should be checked thoroughly and shortages reported to AIRLANCO. It is the purchaser’s responsibility to file shortage reports and damage claims with the carrier and supplier. The carrier is responsible for any damage to the equipment while it is in transit.

Contact information AIRLANCO 312 South Hwy 73 PO Box 398 Falls City, NE 68355-0398 800-500-9777 http://www.airlanco.com

IMPORTANT:

SAFETY PRECAUTIONSWARNING: TO THE OWNER/OPERATOR

The safety of the operator and those people that may come into contact with this equipment is of great impor-tance to Wm. W. Meyer & Sons, Inc. The decals, shields, guards and other protective features designed intothis machine and furnished or recommended are there for your protection. BEFORE attempting to install, operateor perform maintenance on this equipment READ carefully and UNDERSTAND all instructions contained in thismanual in addition to all applicable government safety/health laws and regulations and generally recognizedindustrial standards. The operation and maintenance of this equipment should be restricted to only those per-sonnel trained in its use.

The various precautions and recommendations detailed within this manual are not necessarily all inclusive. Thismanual is designed to provide general safety and operational guidance relating to typical installations of whichwe are familiar. Addendums to this manual may be furnished that pertain to the design of a Meyer Rotary Airlock(RAL) feeder as it relates to your particular installation.

Because Wm. W. Meyer & Sons is not always aware of the application and does not always have access to theinstallation, your participation in the safe installation, operation and maintenance of your rotary airlock feeder iscritical. If you have any safety or operational questions pertaining to the design or applications of the RotaryAirlock we encourage you to contact the factory.

TABLE OF CONTENTS

Safety Precautions ........................................................................................2

Application of Rotary Airlock Feeder ............................................................4

Installation ....................................................................................................6

Start-Up Procedure ......................................................................................7

Proper Care and Handling ............................................................................9

Maintenance..................................................................................................9

Disassembly Procedure ..............................................................................12

Reassembly Procedure ..............................................................................17

Parts List and Drawing ..............................................................................25

2

FAILURE TO OBSERVE AND FOLLOW THESESAFETY PRECAUTIONS MAY RESULT IN SERIOUSINJURY OR PROPERTY DAMAGE.

NOTE: This metal warning label is permanentlyaffixed to each RAL feeder at the factory. If you havereceived a unit without this label, contact Wm. W.Meyer & Sons for assistance prior to installation, useor maintenance.

SECTION ISAFETY PRECAUTIONS

1. Rotary airlock feeders, their drive components,accessory components, and any auxiliary or compan-ion equipment, should be installed and operated onlywith protective guards correctly and securely fastenedin place.

2. Upon startup and throughout continuous or intermit-tent operation, avoid serious injury by keeping hands,fingers, feet, etc., loose clothing, and foreign objectsaway from inlet and discharge openings, drive compo-nents, auxiliary components, and associated equip-ment.

3. Rotary airlock feeders should never be installed oroperated in a manner in which the interior of the valveis exposed via the inlet portal, discharge portal orinspection portal. To do so will dangerously exposepersonnel to rotating components.

4. Potentially hazardous electrical power is present.Before performing any work on the rotary airlockfeeder or associated equipment, make sure that thecircuit breakers or disconnects that control incomingline voltage are locked off.5. The weight of a rotary airlock feeder or its compo-nents parts, such as the rotor, headplates, etc., cancause serious injury or damage if accidentally droppedor mishandled during assembly, disassembly andinstallation. Use safe and acceptable methods whenhandling this equipment. Contact the factory forrecommended safe handling and rigging techniques.

3

Because of the wide variety of material handling systems for which a RAL feeder must be tailored, many consid-erations determine the proper size, design, materials of construction, operating speed, type of driver, etc. Acomplete description of every Meyer RAL is kept on file with the factory. These specifications can be referencedby supplying the serial number to your local Meyer Representative.

NOTE: The serial number is located on a metal identification label permanently affixed to each RAL feederhousing before it leaves the factory. To aid us in providing you with a special service, application assistance andhelp with spare part requirements, please record the following:Type/Size___________________________________Serial No.____________________________________Date of Installation_____________________________

SECTION I ContinuedSAFETY PRECAUTIONS

A. Application

Meyer Rotary Airlock Feeders are used in pneumatic conveying systems, dust control equipment, and asvolumetric feed-controls to maintain an even flow of material through processing systems.

The basic use of the rotary airlock feeder is as an airlock transition point, sealing pressurized systems againstloss of air or gas while maintaining a flow of material between components with different pressure. Rotary AirlockFeeders are also widely used as volumetric feeders for metering materials at precise flow rates from bins,hoppers or silos into conveying or processing systems.

Rotary Airlock Feeders have wide application in industry wherever dry flee-flowing powders, granules, crystals,or pellets are used. Typical materials include: cement, sugar, minerals, grains, plastics, dust, fly ash, flour,gypsum, lime, coffee, cereals, pharmaceuticals, etc.

SECTION II APPLICATION ROTARY AIRLOCK FEEDERS

4

SECTION II ContinuedAPPLICATION ROTARY AIRLOCK FEEDERS

* 36X36 Displacement based on closed end rotor.A closed end rotor will deliver about 10% less displacement per revolution. C. ModelsThere are (3) models of Meyer Rotary Airlock Feeders:1. SD Rotary Airlock Feeders2. HDT Rotary Airlock Feeders3. HDX Rotary Airlock FeedersSD RAL Feeders utilize a single lip seal immediately inboard of the bearing. HDT RAL Feeders have a Teflonseal mounted on the shaft and in contact with quad rings in the headplate. Bearings are mounted outboard.HDX RAL Feeders utilize a packing gland design with individual packing rings and also have outboard bearings.The HDX RAL Feeders are available in three (3) types:

a. Ball Bearings (Sizes 4X4 – 22X22)b. Spherical Bearings (Sizes 16X16 - 22X22)c. Spherical Bearings (Sizes 26X26 - 36X36)

Ball Bearings are normally sufficient, but when high loads are present spherical bearings are used. All rotary valves require special care and handling. Maintenance procedures and precautions are outlined inSection VI.

B. Operational SpecificationsCapacities in Cubic Feet Per minute(Based on 6 Vane open end rotor and 100% fill factor)

Size 6VCFR0.024X4

6X68X89X9

10X1011X1012X1212X2113X1214X1416X1618X1822X2226X2630X3036X36

0.070.180.290.36

-0.641.08

-1.051.622.294.347.3

11.3

8VCFR 10

0.20.71.82.93.64.76.4

10.88

10.516.222.943.473

113200

15.03

1.052.7

4.355.4

7.059.6

16.212

15.7524.3

34.3565

109.5169.5300

20.041.43.65.87.29.4

12.821.61621

32.445.886.8146226400

250.5

1.754.5

7.259

11.75162720

26.2540.5

57.25

300.62.15.48.7

10.814.119.232.424

31.5

400.82.87.2

11.614.418.8

32

501

3.59

23.5

40

-0.0650.170.27.0340.470.611.030.8

1.011.552.24.27

11.1220*

Revolutions Per Minute

5

SECTION IIIINSTALLATION

A. RECEIVING AND INSPECTIONUpon receipt of equipment and material from Wm. W. Meyer & Sons, Inc., the following basic steps shouldbe taken:1. Use the packing list to determine that all the items shipped have been received. Your equipment was

carefully crated for safe shipment when given to the carrier. Check for damage.2. Damage in transit is the responsibility of the carrier. Be sure to have the driver sign a copy of the freight

bill with a notation about any damage.3. If a shipment was sent to you by parcel post, have the postmaster complete a damage claim report.4. Concealed Damage: If equipment or goods are discovered to be damaged in shipment at a later date,

contact the carrier and Wm. W. Meyer & Sons, Inc., immediately.5. In all cases of damage in transit, contact Wm. W. Meyer & Sons, Inc., for assistance in determining

whether or not this damage may in any way affect safety or proper valve operation.

B. STORING THE ROTARY VALVE1. Short Term Storage (Up to a few weeks)

a. If moved to storage, the equipment should be located in a dry area, preferably inside. Outside storagewill require adequate protection from the weather.

b. The inlet and outlet of the rotary valve should be securely covered to protect the interior while in storage.For prolonged storage an anti-rust compound should be applied to all interior surfaces. See motor andreducer data for storage rules.

c. After storage and prior to start-up, the rotary valve and its drive train should be inspected by qualifiedpersonnel.

2. Long Term Storagea. Spray the interior of the valve with an anti-rust preservative oil.b. Provide and install metal covers for inlet and outlet flanges with at least four capscrews in each flange.

Keep covers on unit until ready for service.c. Completely fill worm gear speed reducers with oil, replace vented fill plug with solid plug. Retain vented

plug for future operation. Read and follow motor, speed reducer, and other equipment manufacturer’sinstructions for long term storage.

d. Plug all conduit box openings on motors and switches.e. Store off the floor in a dry, adequately ventilated, indoor area not subject to extreme temperature

changes. These requirements are minimum.f. If stored for more than 6 months, turn the rotor a couple of revolutions every six months. Leave the

rotor in a different angular position after turning.3. Placing In Service After Long Term Storage

a. Drain and re-fill worm gear speed reducer with appropriate lubricant to proper level. Replace solidplug in fill opening with vented unit. Review speed reducer manufacturer’s instructions for additionalrequirements.

b. Follow motor manufacturer’s instructions for removing motor from storage.c. Clean preservative oil from interior of valve.

6

DANGER - Disconnect power before servicing motor or drive components.

2. When safety switches are supplied, they must be interlocked to provide adequate personnel protection.Safety switches are an extra cost option available for any rotary valve where its particular operating conditionmay warrant the use of switches to improve the safe operation of the valve. We urge each customer toreview each rotary valve installation for this safety switch consideration. If furnished, never manually overrideor electrically by-pass any protective device. Contact Wm. W. Meyer & Sons, Inc., for assistance in review-ing your particular rotary valve installation. Also contact your plant safety director and ask for a review of therotary valve installation with regard to safety.

C. MOUNTING1. Prior to installing the valve and with the power disconnected, check to assure no foreign objects have been

left inside or have accidentally fallen into the valve.2. We recommend that inlet and outlet flanges remain covered until the valve is ready to be attached to the

mating equipment.3. Rotary Valves must be installed with the top and bottom flanges parallel to the mating system flanges and

adequately supported to prevent distortion.

CAUTION - Never operate a rotary valve unless the inlet and outlet openings are protected with temporary flangecovers, the connecting equipment or approved guards. Contact Wm. W. Meyer & Sons, Inc. for flange guards ifflanges are open during operation.

D. ELECTRICAL CONNECTION1. Check for correct rotation by “bumping” motor. Unless specified otherwise, Meyer rotary airlock valves

operate in the clockwise direction as viewed from the drive end.

SECTION IVSTART-UP PROCEDURE

1. Prior to actual operation, the operator must familiarize himself with the method of starting and stopping theRotary Valve, and the status of supporting utilities.

2. The general appearance of the Rotary Valve and surrounding area should be visually inspected to determinethat the valve can be operated safely and without causing any type of damage.

3. Assure that the speed reducer has been filled to the correct level with the appropriate lubricant as recom-mended by the manufacturer. Lubrication instructions were included with the rotary valve.

SECTION III ContinuedINSTALLATION

7

4. “Bump” the unit with the motor starter to check for correct rotation. Change the phase sequence to the motorif rotation is wrong. Always assure the unit is properly grounded in accordance with OSHA, the NEC andlocal codes.

5. Start the unit again, noting any unusual noise or vibration. If noise is evident it is recommended that theequipment be shut down and reinspected for foreign materials. If no obstruction appears you should contactMeyer and Sons before any further operation. Assure motor amperage does not exceed name-plated value.

6. Guards and valve inspection doors should be in place and closed tightly whenever the rotor is turning.7. When shutting down the Rotary Valve, shut off supporting utilities in accordance with plant operating proce-

dures.8. When cleaning or servicing is required of the valve, proper lock out of electrical, compressed gas and any

auxiliary equipment should be completed before the work is started.9. After the initial operating period, we recommend that your plant engineering and maintenance personnel

continue to monitor the operation of the valve on a regular schedule. Particular attention should be paid tothe following items:a. Speed Reducer

Check for proper lubrication, excessive heat, vibration or unusual noise which may indicate a problemwith the speed reducer.

b. BearingsThe condition of rotary valve bearings should be checked routinely. Excessive heat, vibration, orunusual noise indicates a potential problem.

c. Seals The type of seal depends on the model and options of your Meyer Rotary Airlock. Maintenance islimited to replacement of the seal or packing when the wear and leakage becomes excessive.

d. DriveThe drive should run smoothly with minimal vibration. If the unit is jumping or shaking check forproper chain tension and chain alignment. If the problem persists consult Meyer Engineering for anapplication review. The clipping that can result from certain kinds of materials can destroy a rotaryvalve in short order.

GENERAL INSPECTION1. Observe equipment for any unusual vibration, noise or operating temperatures in excess of the maximum

specified for your installation.2. Check valve flange and purge connections, and all nuts/capscrews for tightness.3. Be alert to oil leaks on machinery and around the surrounding area.4. Inspect inlet and outlet fittings, flanges and ducts for leaks. Check utility service piping and associated

valves and gauges attached to the Rotary Valve.5. Check all accessories for proper operation. Check safety switches for adjustment, and operating mechanism

for alignment.

SECTION IV ContinuedSTART-UP PROCEDURE

8

The Meyer rotary airlock feeder has been manufactured from the finest materials available to exacting standardsof workmanship. Very close and precise tolerances assure the best possible fit and seal between all compo-nents. As with any quality product, they should be given proper handling and care, as outlined below:

1. Do not attempt to switch the rotor from one housing into that of another without contacting the Meyer factory.Due to temperature and application considerations not all parts are interchangeable. Some housings androtors are “mated”. They are not interchangeable.

2. Use special care and handling to avoid spoiling (i.e., nicking, scoring, gouging, galling, etc.) any internalsurface, edge or contour of the housing, rotor or endplate. Any degradation of these machined surfacesmay upset the internal clearances, cause the valve to bind and cause extensive damage.

3. Rotary airlocks of cast iron construction without any special purpose surface coating (such as electro-lessnickel) are subject to rust and corrosion when exposed to moisture. If water is used as a cleansing agent,be sure valve is completely dry and rotor is free to turn before returning to service.

4. Sealed and pre-lubricated bearings are normally supplied with the rotary airlock. If the rotary valve compo-nents are to be submerged in a cleaning tank or similar type of bath, the bearings must first be removedfrom the headplate.

5. Always clean and inspect one valve at a time and reassemble immediately to avoid mismatching parts.

SECTION VPROPER CARE AND HANDLING

SECTION VIMAINTENANCE

DANGER – Before beginning any work on the rotary valve, make sure that the circuit breakers that controlincoming power to the gearhead motor are LOCKED OFF.

A. LUBRICATION1. Speed ReducerStandard models utilize a right angle worm gear type. Optional parallel shaft helical gear reducers or other typesare available as required. Lubricant instructions published by the particular reducer manufacturer are includedwith the rotary valve.2. Bearingsa. Ball Bearing Units

Rotary airlock feeders manufactured with ball bearings utilize pre-lubricated, sealed, anti-friction ball bearingsthat do not require regreasing. Optional grease fittings are available to make the bearings regreasable. ALithium Base NLGI #2 grease may be used for relubrication. Remove the bearing caps prior to regreasingand when grease begins to come out of the seals, the bearings will contain the correct amount of lubricant.For HDX (Heavy Duty Extra Tough) Valves designed to operate in applications above 500 Deg F, specialbearings and lubricant are recommended. DC-41 lubricant is typically used for these high temperatureapplications.

9

SECTION VI ContinuedMAINTENANCE

B. PACKINGThe packing may be replaced in Meyer HDX Rotary Airlock Feeders without removing the feeder from the instal-lation.1. Remove packing gland stud nuts.2. Pull back packing gland nut.

b. Spherical Bearing UnitsRotary airlock feeders manufactured with spherical bearings require regreasing. Grease fittings are standardto make the bearings regreasable. A Lithium Base NLGI #2 grease may be used for relubrication.

3. Seals/Packing GlandSD (Standard Duty) Feeders are supplied with Lip Seals in the headplate inboard of the bearings.

HDT (Heavy Duty Tough) Feeders are supplied with Multi Seal™ shaft seals consisting of a Teflon shaft sleevewith Buna-N quad rings. Maintenance is limited to replacement of the Multi Seal™ in each headplate when wearand leakage become excessive.

HD (Heavy Duty Extra Tough) Feeders are supplied with graphite impregnated aramid fiber packing within thepacking gland housing. Optional Teflon Chevron, U-Cup, or braided shaft seals are also available. Maintenanceis limited to replacement of the packing rings in each head plate when wear and leakage becomes excessive.

Air Purge or Grease Purge seals are available as an option on HDX Feeders. When air purge is selected, alantern ring is supplied inboard of the packing rings. Compressed air is introduced to the lantern ring througha drilled hole in the headplate. Optional filter- regulator- lubricator and/or solenoid valve is available. The airshould be turned on before the valve is started and turned off after the valve is stopped to insure that dust doesnot enter the lantern ring. Air pressure should be 10-15 psi above the valve operating pressure.

When grease purge is selected, a lantern ring and packing ring are placed inboard of the remaining packingrings. Grease is introduced to the lantern ring through a drilled hole in the headplate. A Lithium Base NLGI #2grease may be used for lubrication. A high temperature grease should be used when the product exceeds 300Deg F.

4. ChainThe roller chain furnished with standard feeders is pre-lubricated at the factory. The chain should be oiledperiodically with a brush or spout can every 50 hours of operation. A good grade of non-detergent petroleumbase oil should be used with the viscosity shown below:

Ambient Temperature(Deg F) LubricantSAE 20SAE 30SAE 40SAE 50

20-4040-100100-120120-140

10

3. Remove packing with packing hook.4. Lantern rings, when furnished, should be inspected for damage. Take care not to damage the lantern rings

as the feeder must be disassembled in order to replace them. If the lantern rings must be replaced followthe disassembly instructions in Section VII.

5. Install new packing.6. Push packing gland nut into packing carrier.7. Replace and carefully tighten gland nut stud nuts to compress packing, but not to the extent that excessive

drag is forced on the shaft or that the packing is crushed.

C. SEAL STRIP REPLACEMENTThe seal strip replacement procedure is the same for SD, HDT, and HDX Feeders.


1. Remove the feeder from the installation or gain access to the top and bottom of the feeder.2. Remove the chain from the feeder sprocket.

Caution – Flexible seal strips, such as Neoprene and Urethane, are installed on the trailing edge of the rotor blades.Rigid seal strips, such as Teflon, brass, and steel, are installed on the leading edge of the rotor blade. New stripsshould be installed in the same location.

3. Turn the feeder sprocket in a clockwise direction (facing the drive end) until one seal is completely clear.4. Unbolt the seal strip holder and remove the old seal strip.5. After brushing off the loose material from the tip of the rotor and behind the old seal, fit in the new seal strip.

The flexible seal strips have slots so that the new seal strip may be placed as high as possible on the rotor.The seal strip should be slightly above the feeder inlet so that it will curve back from the direction of rotation.Rigid seal strips should be installed with clearance.

6. Install seal strip holder and turn down capscrews finger tight. Tighten all screws with wrench.7. Advance the rotor to the next position either by turning the feeder sprocket by hand, or by placing a pipe

wrench on the sprocket hub. Do not use a pipe wrench on the rotor shaft.

You will note that the feeder will become progressively harder to turn with the installation of each new flexibleseal, but this tightness is a must if the feeder is to have an air tight seal. A few drops of oil on each seal willreduce the friction and allow the rotor to be turned easier.

The best way to reset/replace rigid seal strips is to remove the rotor completely from the housing, replace ormove the seal strips out beyond the housing inside diameter, and then machine the rotor to diameter and length.Attempting to adjust rigid seal strips inside the airlock will achieve a marginal result at best.

SECTION VI ContinuedMAINTENANCE

11

Because clearances are critical to the operation of the rotary airlock, document existing clearances beforedisassembly. These values may be important during reassembly of the airlock or troubleshooting. Clearancesat the top and bottom and at leading and trailing blades can easily be measured with a feeler gauge. Follow the disassembly procedure appropriate to your valve model.

A. SD RAL DISASSEMBLY PROCEDURE(See exploded view of feeder on page 25 to identify item numbers shown in parantheses)


DISASSEMBLYTo remove the rotor (2) from the valve housing (1), follow these steps:1. Remove the guard(26).2. Remove the master link and chain(27).3. Remove the sprockets(28) & (29).4. Remove the guard backplate(25).5. Unscrew (counter-clockwise) the bearing cap capscrews (7) and remove.6. Remove the bearing caps (6) & (8).7. Utilizing a hex key unscrew (counter-clockwise) the socket head setscrews that hold the bearings(5) to

the rotor shaft.8. Choose the side of the valve you wish to pull the rotor out from and unscrew (counter-clockwise) the associ-

ated headplate capscrews (4) and remove. The other headplate may be optionally removed in the samemanner.

9. Slowly pull the headplate (3) straight away from the housing (1). Avoid pulling the headplate off in an uneven“side to side” manner. Mishandling can cause damage to the seal. The bearing (5) will remain in theheadplate and slide off the shaft. The relationship between bearing and shaft is a clearance fit. Theheadplate should slide off the rotor shaft with very little resistance and with the bearing and seal still intact.

10. Remove the rotor (2) by gripping the end of the shaft. Be prepared to support the weight of the rotor as it isremoved from the housing. Slowly and evenly pull the rotor straight out from the housing and out of theother bearing. Be careful to avoid striking the housing bore with any edge of the rotor or dropping the rotor. The rotor as well as interior of the valve is now open and exposed for cleaning and inspection.To remove the bearing (5) and seal(9) from the headplate (3), follow these steps:

11. The bearing is tap fit in its housing. Press the bearing out of the headplate in the direction of the bearing cap(6) & (8).

12. Press the seals (9) from each headplate if removal is desired.13. The valve is now ready for inspection and cleaning. The speed reducer(20) and speed reducer motor

base(14) may be removed if desired.

SECTION VIIDISASSEMBLY PROCEDURES

12

B. HDT RAL DISASSEMBLY PROCEDURE(See exploded view of feeder on page 26 to identify item numbers shown in parantheses)


DISASSEMBLYTo remove the rotor (2) from the valve housing (1), follow these steps:1. Remove the guard (6).2. Remove the master link and chain (7).3. Remove the sprockets (31) & (32).4. Remove the guard backplate(30).5. Utilizing a hex key loosen (counter-clockwise) the socket head setscrews in the clamping ring(9) around the

teflon Seal(10).6. Utilizing a hex key unscrew (counter-clockwise) the socket head setscrews that hold the bearings(5) to the

rotor shaft.7. Choose the side of the valve you wish to pull the rotor out from and unscrew (counter-clockwise) the associ-


8. Slowly pull the headplate (3) straight away from the housing (1). Avoid pulling the headplate off in an uneven“side to side” manner. Mishandling can cause damage to the seal. The bearing (5) will remain in theheadplate and slide off the shaft. The relationship between bearing and shaft is a clearance fit. Theheadplate should slide off the rotor shaft with very little resistance and with the bearing and seal still intact.

9. Remove the rotor (2) by gripping the end of the shaft. Be prepared to support the weight of the rotor as it isremoved from the housing. Slowly and evenly pull the rotor straight out from the housing and out of theother bearing. Be careful to avoid striking the housing bore with any edge of the rotor or dropping the rotor. The rotor as well as interior of the valve is now open and exposed for cleaning and inspection.

10. The bearing is tap fit in its housing. Press the bearing out of the headplate.11. The teflon seal (10) and clamping ring (9) may be removed from the headplate along with the three quad

rings (8).12. The valve is now ready for inspection and cleaning. The speed reducer (20) and speed reducer motor


C. HDX RAL DISASSEMBLY PROCEDURE (Ball Bearing Design)(See exploded view of feeder on page 27 to identify item numbers shown in parantheses)


SECTION VII ContinuedDISASSEMBLY PROCEDURES

13


DISASSEMBLYTo remove the rotor (2) from the valve housing (1), follow these steps:1. Remove the guard (31).2. Remove the master link and chain (32).3. Remove the sprockets (33) & (34).4. Remove the guard backplate (30).5. Loosen (but do not remove) the gland nut hex nuts (8) on the packing gland studs (11) in each headplate (3).6. Unscrew (counter-clockwise) the bearing cap capscrews (7) and remove.7. Remove the bearing caps (6) & (19).8. Utilizing a hex key unscrew (counter-clockwise) the socket head setscrews that hold the bearings(5) to the

rotor shaft.9. Choose the side of the valve you wish to pull the rotor out from and unscrew (counter-clockwise) the associ-


10. Using any two of the bearing carrier spokes as handles, slowly pull the headplate (3) straight away from thehousing (1). Avoid pulling the headplate off in an uneven “side to side” manner. Mishandling can causedamage to the seal. The bearing (5) will remain in the headplate and slide off the shaft. The relationshipbetween bearing and shaft is a clearance fit. The headplate should slide off the rotor shaft with very littleresistance and with the bearing and seal still intact.

11. Remove the rotor (2) by gripping the end of the shaft. Be prepared to support the weight of the rotor as it isremoved from the housing. Slowly and evenly pull the rotor straight out from the housing and out of theother bearing. Be careful to avoid striking the housing bore with any edge of the rotor or dropping the rotor. The rotor as well as interior of the valve is now open and exposed for cleaning and inspection.To remove the seals packing (10) from each headplate, follow these steps:

12. Unscrew (counter-clockwise) and remove the two gland hex nuts (8) on the packing gland studs (11) ineach headplate (3). Slide the gland nut (9) off the threaded studs and remove.

13. The rotary airlock will usually have graphite aramid fiber packing rings (10) seated in the packing glandhousing. This packing is clearance fit and is removed by reaching into the gland housing with a probe andworking the packing rings straight out one at a time. Optional high temperature and three different styles ofteflon packing rings are available.

14. The bearing (5) is tap fit in its housing. To remove the bearing from the headplate (3) press the bearing out ofthe headplate in the direction of the bearing cap (6) & (19).

15. The valve is now ready for inspection and cleaning. The speed reducer(20) and speed reducer motorbase(13) may be removed if desired.

14


D. 16X16 – 22X22 HDX RAL DISASSEMBLY PROCEDURE (Spherical Bearing Design)(See exploded view of feeder on page 28 to identify item numbers shown in parantheses)


DISASSEMBLYTo remove the rotor (2) from the valve housing (1), follow these steps:1. Remove the guard (31).2. Remove the master link and chain (32).3. Remove the sprockets (33) & (34).4. Remove the guard backplate (30).5. Loosen (but do not remove) the gland nut hex nuts (8) on the packing gland studs (11) in each headplate (3).6. Unscrew (counter-clockwise) the bearing cap capscrews (7) and remove.7. Remove the blind end bearing cap (6) and drive end bearing retainer (19).8. Straighten the tab on the lockwasher (42) which holds the locknut (41) in position on the drive end bearing (5).

Utilizing a spanner wrench unscrew (counter-clockwise) the locknut (41) that holds the drive end bearing (5) tothe rotor shaft. Remove locknut (41) and lockwasher (42).

9. Choose the side of the valve you wish to pull the rotor out from and unscrew (counter-clockwise) the associ-ated headplate capscrews (4) and remove. The other headplate may be optionally removed in the samemanner.

10. Using any two of the bearing carrier spokes as handles, slowly pull the headplate (3) straight away from thehousing (1). Avoid pulling the headplate off in an uneven “side to side” manner. Mishandling can causedamage to the seal. The bearing (5) will remain in the headplate and slide off the shaft. The relationshipbetween bearing and shaft is a clearance fit. The headplate should slide off the rotor shaft with very littleresistance and with the bearing and seal still intact.

11. Remove the rotor (2) by gripping the end of the shaft. Be prepared to support the weight of the rotor as it isremoved from the housing. Slowly and evenly pull the rotor straight out from the housing and out of theother bearing. Be careful to avoid striking the housing bore with any edge of the rotor or dropping the rotor. The rotor as well as interior of the valve is now open and exposed for cleaning and inspection.To remove the seals packing (10) from each headplate, follow these steps:

12. Unscrew (counter-clockwise) and remove the two gland hex nuts (8) on the packing gland studs (11) in eachheadplate (3). Slide the gland nut (9) off the threaded studs and remove.

13. The rotary airlock will usually have graphite aramid fiber packing rings (10) seated in the packing glandhousing. This packing is clearance fit and is removed by reaching into the gland housing with a probe andworking the packing rings straight out one at a time. Optional high temperature and three different styles ofteflon packing rings are available.

15


14. The bearing (5) is tap fit in its housing. To remove the bearing from the headplate (3) press the bearing outof the headplate in the direction of the blind end bearing cap (6) or drive end bearing retainer (19).

15. Seals (43) (44) in the headplates (3) and drive end bearing retainer (19) may also be removed.16. The valve is now ready for inspection and cleaning. The speed reducer (20) and speed reducer motor


E. 26X26 – 36X36 HDX RAL DISASSEMBLY PROCEDURE (Spherical Bearing Design)(See exploded view of feeder on page 29 to identify item numbers shown in parantheses)


DISASSEMBLYTo remove the rotor (2) from the valve housing (1), follow these steps:1. Remove the guard (31).2. Remove the master link and chain (32).3. Remove the sprockets (33) & (34).4. Remove the guard backplate (30).5. Loosen (but do not remove) the gland nut capscrews (8) on each headplate (3).6. Unscrew (counter-clockwise) the bearing retainer & bearing cover capscrews (41) and remove. As the

capscrews are removed, shims (42) may fall out on the drive end. Carefully remove the shims and docu-ment their locations. There may be shims on both inboard and outboard sides of the drive headplate.There should not be any shims on the blind headplate.

7. Remove the outboard drive end bearing retainer (19) and blind end bearing cover (7).8. Set up and pull the bearings. (Consult Factory for the “Bearing Installation & Removal Drawing”). A hydraulic

jack and pulling equipment will need to be secured. The bearing is interference fit on the shaft and clearancefit in the headplate.

9. Choose the side of the valve you wish to pull the rotor out from and unscrew (counter-clockwise) the associ-ated headplate capscrews (4) and remove. The other headplate may be optionally removed in the samemanner. Secure the inboard seal retainers (6) (18) with temporary fasteners to the bearing boss on theheadplate. This will prevent the seal retainers (6) (18) from falling off the end of the shaft and being damagedwhen the headplate is removed.

10. Slowly pull the headplate (3) straight away from the housing (1). Avoid pulling the headplate off in an uneven“side to side” manner. As the headplate is removed the inboard seal retainer (6) (18) will slide off the end ofthe shaft. It will not drop if secured as suggested in 9.

16


11. Remove the rotor (2) by gripping the end of the shaft. Be prepared to support the weight of the rotor as it isremoved from the housing. Slowly and evenly pull the rotor straight out from the housing and out of theother bearing. Be careful to avoid striking the housing bore with any edge of the rotor or dropping the rotor. The rotor as well as interior of the valve is now open and exposed for cleaning and inspection.To remove the seals (10) from each headplate, follow these steps:

12. Unscrew (counter-clockwise) and remove the two packing gland stud nuts (8) on each headplate (3).Slide the gland nut (9) out of the headplate (3) and remove.

13. The rotary airlock will usually have graphite aramid fiber packing rings seal (10) seated in the packing glandhousing. This packing is clearance fit and is removed by reaching into the gland housing with a probe andworking the packing rings straight out one at a time. Optional high temperature and three different styles ofteflon packing rings are available.

14. The seals may be pressed out of the seal retainers if they need to be replaced. Note that the two inboardseals are different from the drive end outboard seal. Also, note that the two inboard seal retainers aredifferent, the blind end inboard seal retainer has a shorter step because the blind end bearing floats.

15. The valve is now ready for inspection and cleaning. The speed reducer (20) and speed reducer motor base(13) may be removed if desired.

SECTION VIIIREASSEMBLY PROCEDURES

Follow the procedure appropriate to your valve model.

A. SD RAL REASSEMBLY PROCEDURE (See exploded view of feeder on page 25 to identify item numbers shown in parantheses)

1. Rest a headplate (3) “face down” on a clean surface so that the bearing housing is pointed up. Inspect thebearing housing to insure it is clean and smooth.

2. Inspect the bearing(5) to assure it is clean, turns freely and does not drag or bind at any point. 3. Do not install the bearing (5) into its housing at this time.4. With the headplate still “face down”, inspect the seal housing to insure it is clean and smooth.5. Press the seal(9) into the headplate. The seal spring should face toward the interior of the valve. Put a light

film of oil or grease on the lip of the seal so that it slides onto the shaft easily. 6. Repeat this procedure for the other headplate.7. Press the bearing (5) into each headplate (3). Be careful to press on the outer race only.8. Inspect the rotor (2) and housing (1) to assure they are clean and dry, the surfaces smooth and free of nicks,

divots, or any rough spots that will interfere with the mated fit.

17

SECTION VIII ContinuedREASSEMBLY PROCEDURES

9. Install a headplate (3) on the housing (1). Tighten the headplate capscrews(4).10. Determine whether you are assembling the unit from the drive or blind end. Grip the rotor and shaft from the

appropriate end. Slowly and carefully begin working the rotor into the housing. Avoid dragging the rotorvanes along the housing bore and walls. Never force the rotor into the housing. Although manufactured tovery close tolerances, there is sufficient clearance to permit the rotor to slide into the housing with a minimumof effort.

11. As the rotor passes through the headplate and past the seal assembly, gently rotate it to avoid inverting thelip of the seal or dislocating the spring. The rotor shaft passes through the bearing after clearing the seal.Continue to slide the rotor until completely seated in the housing.

12. With the seal assembly and bearings properly installed in the remaining headplate, carefully slide theheadplate (3) onto and over the rotor shaft. Gently rotate the headplate as the lip of the seal slides on to theshaft. The bearing (5) will slide over the end of the shaft. Carefully press the headplate the rest of the wayover the shaft and into the housing. It is critical that the machined step or lip around the perimeter of theheadplate is seated square and snug in the housing. If misaligned or not fully seated, the internalclearances will be upset and this will cause serious damage to the valve when operated.

13. Screw (clockwise) the headplate capscrews (4) back into the housing. Be sure headplate is securely andsquarely fastened to the housing.

14. Check the rotor end clearances with a feeler gage and position the rotor in the housing. Tighten the sockethead setscrews in each bearing race with a hex key to firmly attach the bearings (5) to the rotor shaft.

15. Install the bearing caps (6) & (8) on the headplates (3). Tighten the bearing cap capscrews (7).16. Install the speed reducer motor base (14) and speed reducer (20).17. Install the guard backplate (25).18. Install the sprockets (28) & (29) on the shafts. Be sure they are aligned.19. Install the chain (27) and master link. Adjust the speed reducer (20) for proper chain tension.20. Install the guard (26).21. The valve is now ready to return to service.

Caution - Before applying power, make sure the valve interior is not exposed, and any purge or signal lines arereconnected.

B. HDT RAL REASSEMBLY PROCEDURE (See exploded view of feeder on page 26 to identify item numbers shown in parantheses)


2. Inspect the bearing (5) to assure it is clean, turns freely and does not drag or bind at any point. 3. Do not install the bearing (5) into its housing at this time.4. With the headplate still “face down”, inspect the seal housing to insure it is clean and smooth.

18


5. Fit the three quad rings (8) into the seal grooves in the headplate (3).6. Install the clamping ring (9) on the Teflon seal (10) and push into the headplate and quad rings (8).7. Repeat this procedure for the other headplate.8. Install the snap ring on the bearing and press the bearing (5) into each headplate (3). Be careful to press on

the outer race only.9. Inspect the rotor (2) and housing (1) to assure they are clean and dry, the surfaces smooth and free of nicks,

divots, or any rough spots that will interfere with the mated fit.10. Install a headplate (3) on the housing (1). Tighten the headplate capscrews (4).11. Determine whether you are assembling the unit from the drive or blind end. Grip the rotor and shaft from the


12. The rotor passes through the headplate, past the seal assembly, and through the bearing. Continue to slidethe rotor until completely seated in the housing.

13. With the seal assembly and bearings properly installed in the remaining headplate, carefully slide theheadplate (3) onto and over the rotor shaft. The bearing (5) will slide over the end of the shaft. Carefullypress the headplate the rest of the way over the shaft and into the housing. It is critical that the machinedstep or lip around the perimeter of the headplate is seated square and snug in the housing. If mis-aligned or not fully seated, the internal clearances will be upset and this will cause serious damage tothe valve when operated.

14. Screw (clockwise) the headplate capscrews (4) back into the housing. Be sure the headplate is securelyand squarely fastened to the housing.


16. Press on the Teflon seals (10) to be sure that they are seated against the headplate .17. Tighten the socket head capscrews on the clamping rings (9) with a hex key.18. Install the speed reducer motor base (13) and speed reducer (20).19. Install the guard backplate (30).20. Install the sprockets (31) & (32) on the shafts. Be sure they are aligned.21. Install the chain (7) and master link. Adjust the speed reducer (20) for proper chain tension.22. Install the guard (6).23. The valve is now ready to return to service.


19


C. HDX RAL REASSEMBLY PROCEDURE (Ball Bearing Design)(See exploded view of feeder on page 27 to identify item numbers shown in parantheses)


2. Inspect the bearing (5) to assure it is clean, turns freely and does not drag or bind at any point. 3. Do not install the bearing (5) into its housing at this time.4. With the headplate still “face down”, inspect the seal housing to insure it is clean and smooth.5. Fit the packing rings (10) into the seal housing. For lip type packing, the lip of the packing ring should face

down or toward the interior of the valve.6. Install the gland nut (9) over the packing gland studs (11) and slide the shoulder into the seal housing.

Evenly tighten the hex nuts (8) on either side of the gland nut until snug - then back off 1⁄2 turn.7. Repeat this procedure for the other headplate.8. Press the bearing (5) into each headplate (3). Be careful to press on the outer race only.9. Inspect the rotor (2) and housing (1) to assure they are clean and dry, the surfaces smooth and free of nicks,




13. With the seal assembly and bearings properly installed in the remaining headplate, carefully slide theheadplate (3) onto and over the rotor shaft. The bearing (5) will slide over the end of the shaft. Carefullypress the headplate the rest of the way over the shaft and into the housing. It is critical that the machinedstep or lip around the perimeter of the headplate is seated square and snug in the housing. If mis-aligned or not fully seated, the internal clearances will be upset and this will cause serious damage tothe valve when operated.



16. Install the bearing caps (6) & (19) on the headplates(3). Tighten the bearing cap capscrews (7).17. Finish tightening the gland hex nuts (8) on the packing gland studs (11) in each headplate (3) until snug.18. Install the speed reducer motor base (13) and speed reducer (20).

20


19. Install the guard backplate (30).20. Install the sprockets (33) & (34) on the shafts. Be sure they are aligned.21. Install the chain (32) and master link. Adjust the speed reducer (20) for proper chain tension.22. Install the guard (31).23. The valve is now ready to return to service.


D. 16X16-22X22 HDX RAL REASSEMBLY PROCEDURE (Spherical Bearing Design) (See exploded view of feeder on page 28 to identify item numbers shown in parantheses)

1. Rest a headplate (3) “face down” on a clean surface so that the bearing housing is pointed up. Inspect thebearing housing and grease seal housing to insure it is clean and smooth.

2. Inspect the bearing (5) to assure it is clean, turns freely and does not drag or bind at any point. 3. Do not install the bearing (5) into its housing at this time.4. With the headplate still “face down”, inspect the seal/packing housing to insure it is clean and smooth.5. Fit the packing rings (10) into the seal housing. For lip type packing, the lip of the packing ring should face

down or toward the interior of the valve.6. Install the gland nut (9) over the packing gland studs (11) and slide the shoulder into the seal housing.

Evenly tighten the hex nuts (8) on either side of the gland nut until snug - then back off 1⁄2 turn.7. Repeat this procedure for the other headplate.8. Press the grease seal (43) into each headplate (3). Press the bearing (5) into each headplate (3). Be careful

to press on the outer race only.9. Inspect the rotor (2) and housing (1) to assure they are clean and dry, the surfaces smooth and free of nicks,




13. With the seal assembly and bearings properly installed in the remaining headplate, carefully slide theheadplate (3) onto and over the rotor shaft. The bearing (5) will slide over the end of the shaft. Carefullypress the headplate the rest of the way over the shaft and into the housing. It is critical that the machinedstep or lip around the perimeter of the headplate is seated square and snug in the housing. If mis-

21


aligned or not fully seated, the internal clearances will be upset and this will cause serious damageto the valve when operated.


15. Install the lockwasher (42) and locknut (41) on the drive side. Tighten the locknut (41), but do not set thelockwasher at this time.

16. Check the rotor end clearances with a feeler gage and position the rotor in the housing. Determine thequantity of shims (45) required to center the rotor. This may require a trial and error approach if the rotor isinitially tight against the drive headplate. Note: For closed end rotors, shims are not used, skip to 19.

17. Remove locknut (41), lockwasher (42), and drive headplate (3).18. Install shims on shaft, re-install drive headplate, repeating steps 13 –16 until rotor is centered in housing. 19. Bend a tab in the lockwasher (42) into the locknut (41) to lock it in place.20. Install grease seal (44) in drive end bearing retainer (19).21. Install the blind end bearing cap (6) and gasket (40) on the headplate (3). Tighten the bearing cap capscrews (7).22. Finish tightening the gland nut hex nuts (8) on the packing gland studs (11) in each headplate (3) until snug.23. Install the speed reducer motor base (13) and speed reducer (20).24. Install the guard backplate (30).25. Install the sprockets (33) & (34) on the shafts. Be sure they are aligned.26. Install the chain (32) and master link. Adjust the speed reducer (20) for proper chain tension.27. Install the guard (31).28. The valve is now ready to return to service.


E. 26X26 – 36X36 HDX RAL REASSEMBLY PROCEDURE (Spherical Bearing Design)(See exploded view of feeder on page 29 to identify item numbers shown in parantheses)


2. Inspect the bearing (5) to assure it is clean, turns freely and does not drag or bind at any point. 3. Inspect the seal retainers to be sure they are clean and smooth. There are two inboard seal retainers (6) (18)

and one outboard drive end seal retainer (19). Press the appropriate seals into the seal retainers. Do notinstall the bearing (5) into its housing at this time. Note that the seals are the same in the inboard sealretainers, but the retainers are different. One is for the drive end and the other is for the blind end. The stepon the blind inboard seal retainer is shorter because the blind end bearing floats.

22


4. With the headplate still “face down”, inspect the seal housing to insure it is clean and smooth.5. Fit the packing rings (10) into the seal housing. For lip type packing, the lip of the packing ring should face

down or toward the interior of the valve.6. Install the gland nut (9) and slide the shoulder into the seal housing. Evenly tighten the capscrews (8) on

either side of the gland nut until snug - then back off 1⁄2 turn.7. Install the inboard seal retainer (6) (18) to the headplate with temporary fasteners. Be sure to identify which

headplate will be the blind and drive based on associated inboard seal retainer.8. Repeat this procedure for the other headplate (steps 4 – 7).9. Inspect the rotor (2) and housing (1) to assure they are clean and dry, the surfaces smooth and free of nicks,



12. The rotor passes through the headplate, past the seal/packing assembly and seal in the inboard sealretainer.

13. With the seal/packing assembly installed in the remaining headplate, carefully slide the headplate (3) ontoand over the rotor shaft. Carefully press the headplate the rest of the way over the shaft and into the housing.It is critical that the machined step or lip around the perimeter of the headplate is seated square andsnug in the housing. If misaligned or not fully seated, the internal clearances will be upset and this willcause serious damage to the valve when operated.


15. Remove the temporary fasteners holding the inboard seal retainers in place and slide the seal retainers awayfrom the bearing housing area. Press the bearings onto the shaft. (Consult Factory for the “Bearing Installa-tion and Removal Instructions”). A hydraulic jack and pressing equipment will need to be secured. Be surethe bearings are pressed up against the shoulder on the shaft. The bearings are interference fit with the shaftand clearance fit in the housing/headplate.

16. Check the rotor end clearances with a feeler gage and position the rotor in the housing. Slide the drive endoutboard (19) and inboard (18) seal retainers into place and measure the gap between the seal retainers andbearing boss in the headplate. Install shims (42) equal to these gaps so as to hold the bearing in thisposition. Install the seal retainer capscrews and shims. Recheck rotor end clearances and be sure they arecorrect.

17. Install the blind end bearing cover (7) on the headplate (3). Install and tighten the seal retainer/ bearing covercapscrews (41). The bearing on the blind end floats so there are no shims required on the blind end.

18. Finish tightening the gland nut capscrews (8) on each headplate (3) until snug.

23


19. Install the speed reducer motor base (13) and speed reducer (20).20. Install the guard backplate (30).21. Install the sprockets (33) & (34) on the shafts. Be sure they are aligned.22. Install the chain (32) and master link. Adjust the gear reducer (20) for proper chain tension.23. Install the guard (31).24. The valve is now ready to return to service.


24

SECTION IXPARTS LIST

SD ROTARY AIRLOCK

ITEM DESCRIPTION QTY ITEM DESCRIPTION QTY1 HOUSING 1 18 MOTOR KEY 1

*2 ROTOR 1 19 MOTOR CAPSCREW 43 HEADPLATE 2 20 SPEED REDUCER 14 HEADPLATE CAPSCREWS ** 21 SPEED REDUCER BOLT 4

*5 BEARING 2 22 SPEED REDUCER FLAT WASHER 46 BLIND END BEARING CAP 1 23 SPEED REDUCER LOCK WASHER 47 BEARING CAP CAPSCREWS 4 24 SPEED REDUCER NUT 48 DRIVE END BEARING CAP 1 25 DRIVE GUARD BACKPLATE 1

*9 OIL SEAL 2 26 DRIVE GUARD FRONT 1*10 ROTOR SEALSTRIP *** 27 CHAIN **11 SEALSTRIP HOLDER *** 28 DRIVE SPROCKET 112 SEALSTRIP CAPSCREW *** 29 DRIVEN SPROCKET 113 SEALSTRIP LOCK NUT *** 30 DRIVE SPROCKET KEY 114 MOTOR BASE 1 31 DRIVEN SPROCKET KEY 115 MOTOR BASE CAPSCREW 4 32 DRIVE GUARD SCREW **16 MOTOR BASE LOCK WASHER 4 33 DRIVE GUARD CLIP **17 MOTOR 1 34 DRIVE GUARD BACKPLATE SCREW **

* RECOMMENDED SPARE PARTS** AS REQUIRED*** OPTIONAL

25

SECTION IX ContinuedPARTS LIST

ITEM DESCRIPTION QTY ITEM DESCRIPTION QTY1 HOUSING 1 18 SEALSTRIP NUT ***

*2 ROTOR 1 19 DRIVE GUARD CLIP **3 HEADPLATE 2 20 SPEED REDUCER 14 HEADPLATE CAPSCREWS ** 21 DRIVE GUARD BACKPLATE SCREW ***5 BEARING 2 22 MOTOR KEY 16 DRIVE GUARD FRONT 1 23 MOTOR CAPSCREW 47 CHAIN ** 24 MOTOR BASE CAPSCREW 48 QUAD RINGS 6 25 MOTOR BASE LOCK WASHER 49 CLAMPING RING 2 26 SPEED REDUCER CAPSCREW 4

*10 TEFLON SEAL 2 27 SPEED REDUCER FLAT WASHER 411 DRIVEN SPROCKET KEY 1 28 SPEED REDUCER LOCK WASHER 412 DRIVE GUARD SCREW ** 29 SPEED REDUCER NUT 413 MOTOR BASE 1 30 DRIVE GUARD BACKPLATE 114 MOTOR 1 31 DRIVE SPROCKET 1

*15 ROTOR SEALSTRIP *** 32 DRIVEN SPROCKET 116 SEALSTRIP HOLDER *** 33 DRIVE SPROCKET KEY 117 SEALSTRIP CAPSCREW ***


HDT ROTARY AIRLOCK

26


ITEM DESCRIPTION QTY ITEM DESCRIPTION QTY1 HOUSING 1 21 BEARING CAP NUT 4

*2 ROTOR 1 22 MOTOR KEY 13 HEADPLATE 2 23 MOTOR CAPSCREW 44 HEADPLATE CAPSCREWS ** 24 MOTOR BASE CAPSCREW 4

*5 BEARING 2 25 MOTOR BASE LOCK WASHER 46 BLIND END BEARING CAP 1 26 SPEED REDUCER CAPSCREW 47 BEARING CAP CAPSCREWS 4 27 SPEED REDUCER FLAT WASHER 48 PACKING GLAND STUD NUT 4 28 SPEED REDUCER LOCK WASHER 49 PACKING GLAND NUT 2 29 SPEED REDUCER NUT 4

*10 PACKING ** 30 DRIVE GUARD BACKPLATE 111 PACKING GLAND STUD 4 31 DRIVE GUARD FRONT 112 LANTERN RING *** 32 CHAIN **13 MOTOR BASE 1 33 DRIVE SPROCKET 114 MOTOR 1 34 DRIVEN SPROCKET 1*15 ROTOR SEALSTRIP *** 35 DRIVE SPROCKET KEY 116 SEALSTRIP HOLDER *** 36 DRIVEN SPROCKET KEY 117 SEALSTRIP CAPSCREW *** 37 DRIVE GUARD SCREW **18 SEALSTRIP NUT *** 38 DRIVE GUARD CLIP **19 DRIVE END BEARING CAP 1 39 DRIVE GUARD BACKPLATE SCREW **20 SPEED REDUCER 1


HDX ROTARY AIRLOCK(BALL BEARING TYPE)

27


ITEM DESCRIPTION QTY ITEM DESCRIPTION QTY1 HOUSING 1 24 MOTOR BASE CAPSCREW 4*2 ROTOR 1 25 MOTOR BASE LOCK WASHER 43 HEADPLATE 2 26 SPEED REDUCER CAPSCREW 44 HEADPLATE CAPSCREWS ** 27 SPEED REDUCER FLAT WASHER 4

*5 BEARING 2 28 SPEED REDUCER LOCK WASHER 46 BLIND END BEARING CAP 1 29 SPEED REDUCER NUT 47 BEARING CAP CAPSCREWS 4 30 DRIVE GUARD BACKPLATE 18 PACKING GLAND STUD NUT 4 31 DRIVE GUARD FRONT 19 PACKING GLAND NUT 2 32 CHAIN **

*10 PACKING ** 33 DRIVE SPROCKET 111 PACKING GLAND STUD 4 34 DRIVEN SPROCKET 112 LANTERN RING *** 35 DRIVE SPROCKET KEY 113 MOTOR BASE 1 36 DRIVEN SPROCKET KEY 114 MOTOR 1 37 DRIVE GUARD SCREW ***15 ROTOR SEALSTRIP *** 38 DRIVE GUARD CLIP **16 SEALSTRIP HOLDER *** 39 DRIVE GUARD BACKPLATE SCREW **17 SEALSTRIP CAPSCREW *** 40 BEARING CAP GASKET 118 SEALSTRIP NUT *** 41 BEARING LOCKNUT 119 DRIVE END BEARING RTNR 1 42 BEARING LOCKWASHER 120 SPEED REDUCER 1 43 OIL SEAL 221 GREASE FITTING 2 44 DRIVE END OIL SEAL 122 MOTOR KEY 1 45 SHIMS **23 MOTOR CAPSCREW 4


16X16 - 22X22 HDX ROTARY AIRLOCK (SPHERICAL BEARING TYPE)

28


ITEM DESCRIPTION QTY ITEM DESCRIPTION QTY1 HOUSING 1 22 MOTOR KEY 1

*2 ROTOR 1 23 MOTOR CAPSCREW 43 HEADPLATE 2 24 MOTOR BASE CAPSCREW 44 HEADPLATE CAPSCREWS ** 25 MOTOR BASE LOCK WASHER 4*5 BEARING 2 26 SPEED REDUCER CAPSCREW 46 SEAL RETAINER, INBOARD BLIND END 1 27 SPEED REDUCER FLAT WASHER 47 BEARING COVER, OUTBOARD BLIND END 1 28 SPEED REDUCER LOCK WASHER 48 PACKING GLAND CAPSCREWS 4 29 SPEED REDUCER NUT 49 PACKING GLAND NUT 2 30 DRIVE GUARD BACKPLATE 1

*10 SEAL 2 31 DRIVE GUARD FRONT 111 INBOARD SEAL 4 32 CHAIN **12 LANTERN RING *** 33 DRIVE SPROCKET 113 MOTOR BASE 1 34 DRIVEN SPROCKET 114 MOTOR 1 35 DRIVE SPROCKET KEY 1*15 ROTOR SEALSTRIP *** 36 DRIVEN SPROCKET KEY 116 SEALSTRIP HOLDER *** 37 DRIVE GUARD SCREW **17 SEALSTRIP CAPSCREW *** 38 DRIVE GUARD CLIP **18 INBOARD BEARING RETAINER, DRIVE END 1 39 DRIVE GUARD BACKPLATE SCREW **19 OUTBOARD BEARING RETAINER, DRIVE END 1 40 OUTBOARD DRIVE END SEAL 120 SPEED REDUCER 1 41 SEAL RETAINER CAPSCREWS 821 BEARING CAP NUT 4 42 SHIMS **

* RECOMMENDED SPAREPARTS

** AS REQUIRED*** OPTIONAL

26X26 - 36X36 HDX ROTARY AIRLOCK (SPHERICAL BEARING TYPE)

29

ELECTRIC MOTORS, GEARMOTORS AND DRIVES

Worm Gear ReducersInstallation, Lubrication

and Maintenance Instructions

Table of Contents

WARNING/CAUTION INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

General Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3“C” Flange Adapter Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

LubricationStandard Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Oil Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Mounting Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-11

Instruction Manual

Phone: (262) 377-8810 Fax: (262) 377-00902

Selection Information

Read ALL instructions prior to operating reducer. Injury to personnel or reducer failure may be caused by improper installation,maintenance or operation.

Safety Alert

• Written authorization from LEESON ELECTRIC is required to operate or use reducers in man lift or peoplemoving devices.

• Check to make certain application does not exceed the allowable load capacities published in the current catalog.

• Buyer shall be solely responsible for determining the adequacy of the product for any and all uses to whichBuyer shall apply the product. The application by Buyer shall not be subject to any implied warranty of fitness for a particular purpose.

• For safety, Buyer or User should provide protective guards over all shaft extensions and any moving apparatus mounted thereon. The User is responsible for checking all applicable safety codes in his area andproviding suitable guards. Failure to do so may result in bodily injury and/or damage to equipment.

• Hot oil and reducers can cause severe burns. Use extreme care when removing lubrication plugs and vents.

• Make certain that the power supply is disconnected before attempting to service or remove any components.Lock out the power supply and tag it to prevent unexpected application of power.

• Reducers are not to be considered fail safe or self-locking devices. If these features are required, a properly sized, independent holding device should be utilized. Reducers should not be used as a brake.

• Any brakes that are used in conjunction with a reducer must be sized or positioned in such a way so as tonot subject the reducer to loads beyond the catalog rating.

• Lifting supports including eyebolts are to be used for vertically lifting the gearbox only and no other associated attachments or motors.

• Use of an oil with an EP additive on units with backstops may prevent proper operation of the backstop. Injuryto personnel, damage to the reducer or other equipment may result.

• Overhung loads subject shaft bearings and shafts to stress which may cause premature bearing failureand/or shaft breakage from bending fatigue, if not sized properly.

• Test run unit to verify operation. If the unit tested is a prototype, that unit must be of current production.

• If the speed reducer cannot be located in a clear and dry area with access to adequate cooling air supply,then precautions must be taken to avoid the ingestion of contaminants such as water and the reduction incooling ability due to exterior contaminants.

• Mounting bolts should be routinely checked to ensure that the unit is firmly anchored for proper operation.

Important Information

In the event of the resale of any of the goods, in whatever form, Resellers/Buyers will include the following language in a conspicuous place and in a conspicuous manner in a written agreement covering such sale:

The manufacturer makes no warranties or representations, express or implied, by operation of law or otherwise,as to the merchantability or fitness for a particular purpose of the goods sold hereunder. Buyer acknowledges that it alone has determined that the goods purchased hereunder will suitably meet the requirements of theirintended use. In no event will the manufacturer be liable for consequential, incidental or other damages. Even ifthe repair or replacement remedy shall be deemed to have failed of its essential purpose under Section 2-719 of the Uniform Commercial Code, the manufacturer shall have no liability to Buyer for consequential damages.

Resellers/Buyers agree to also include this entire document including the warnings above in a conspicuous place and in a conspicuous manner in writing to instruct users on the safe usage of the product.

This instructions manual should be read together with all other printed information such as catalogs, supplied by LEESON ELECTRIC.

WARNING

CAUTION

Instruction Manual

Phone: (262) 377-8810 Fax: (262) 377-00903

General Operation1. Run the motor which drives the reducer and check the direction of reducer output rotation. Consult motor nameplate for

instructions to reverse the direction of rotation.

2. Attaching the load: On direct coupled installations, check shaft and coupling alignment between speed reducer and loading mechanism. On chain/sprocket and belt/pulley installation, locate the sprocket or pulley as close to the oil seal as possible to minimize overhung load. Check to verify that the overhung load does not exceed specifications published in the catalog.

3. High momentum loads: If coasting to a stop is undesirable, a braking mechanism should be provided to the speed reducer output shaftor the driven mechanism.

The system of connected rotating parts must be free from critical speed, torsional or other type vibration,no matter how induced. The responsibility for this system analysis lies with the purchaser of the speedreducer.

Installation1. Mount the unit to a rigid flat surface using grade 5 or higher fasteners. The mounting fasteners should be the largest standard size that

will fit in the base mounting hole. Shim as required under flange or base feet which do not lie flat against the mounting surface.

2. For shipment, pipe plugs are installed in the unit and a vent plug is packed separately. After mounting the unit in position, remove theappropriate pipe plug and install the vent plug in the location shown on page 5. On double reduction units both the primary and thesecondary must be vented. Failure to vent the unit can cause premature seal wear or loss of seal and oil. These conditions are notcovered by warranty. Check for correct oil level. Contact the factory for level and vent recommendations on non-standard mountingpositions. WASHGUARD® (BISSC) and ALL-STAINLESS STEEL reducers are factory supplied with an Enviro-Seal and do not usevents. See (Enviro-Seal) under Lubrication for further information.

3. WASHGUARD® (BISSC) and ALL-STAINLESS STEEL reducers include synthetic oil and an Enviro-Seal pre-installed at the factory. It is not necessary to vent these units, and they can be used as supplied from the factory. Do not loosen the nut holding thestem of the Enviro-Seal, and do not block the hole in the stem. Do not blow pressurized air into the hole, and avoid spraying washdownchemicals directly into the hole.

4. Connect motor to speed reducer.

Depending upon gear geometry and operating conditions worm gear reducers may or may not backdrive.Special consideration should be given to high inertia loads connected to the output shaft. Consult the factory for further details.

DO NOT CHANGE MOUNTING POSITIONS WITHOUT CONTACTING FACTORY.Altering the mounting position may require special lubrication provisions which must be factory installed.

Do not operate the reducer without making sure it contains the correct amount of oil. Do not overfill orunderfill with oil, or injury to personnel, reducer or other equipment may result. WASHGUARD® andALL-STAINLESS STEEL reducers are lubed and sealed for life, so in most applications it will not be necessary to drain or re-fill the unit.

A unit cannot be used as an integral part of a machine superstructure which would impose additional loadson the unit other than those imposed by the torque being transmitted either through a shaft-mountedarrangement, and any shaft mounted power transmitting device. (e.g., sprockets, pulleys, couplings)

For safe operation and to maintain the unit warranty, when changing a factory installed fastener for any rea-son, it becomes the responsibility of the person making the change to properly account for fastener grade,thread engagement, load, tightening torque and the means of torque retention.

Lubrication - Standard UnitsWith the exception of reducer sizes 870, 880 and 8100 (shipped dry), all standard worm reducers ordered from the factory are filled withsynthetic lubricant to operate within a -10° to105° F ambient temperature range. Double reduction units have separate oil sumps and mustbe filled/checked independently. Prior to startup, verify that the oil is at the level shown on the drawings on page 5. If the ambient temper-ature will be outside of this range, drain and refill reducer with lubricant of proper viscosity prior to use.

Enviro-Seal: WASHGUARD® (BISSC) and ALL-STAINLESS STEEL reducers come standard with an Enviro-Seal and synthetic oilpre-installed at the factory. It is not necessary to vent these reducers, and they can be used as supplied from the factory.

CAUTION

CAUTION

CAUTION

CAUTION

CAUTION

WARNING

In the Food and Drug Industry (including animal food), consult the lubrication supplier for recommendation of lubricants which are acceptable to the Food and Drug Administration and/or otherauthoritative bodies having jurisdiction.

Do not mix different oils in the reducer. Oils should be compatible with Viton® seal material.

CAUTION

CAUTION

Phone: (262) 377-8810 Fax: (262) 377-00904

For lubrication requirements of helical reducers (primaries of helical/worm reducers and ratio multipliers), refer to ratio multipliermaintenance manual or contact LEESON Electric.

Instruction Manual

All standard IRONMAN® BY OHIO GEAR Worm Reducers are factory filled with MOBIL SHC-634 lubricant, a synthesized hydrocarbon formulated for long life and wide operating temperature range (-25°F to +220°F).Change intervals: Standard compounded lubricants (non-synthetic) should be changed every six months or 2500 operating hours,whichever comes first. Factory installed synthetic lubricants should be changed only when performing maintenance that requiresgearbox disassembly.

If oil must be replaced in IRONMAN® BY OHIO GEAR Worm Reducers, use only MOBIL SHC-634.

Do not confuse MOBIL SHC-634 with MOBILGEAR 634. MOBILGEAR 634 is an EP type gear oil NOT suitable for use in the IRONMAN® BY OHIO GEAR worm gear reducers.

SPECIAL LUBRICATION REQUIREMENTS - Size 830 & LargerPlease specify mounting position *with order* if any of the following applies:1- Reducer is mounted with input or output shafts vertical2- Input speed is less than 900 RPM3- Reducer is mounted in inclined positionNOTE: The reducer may require modifications to assure proper lubrication in these applications.

The reducer is properly filled at the factory with sufficient lubricant per customer specified mounting position. If position is not specified by customer, reducer will be filled to level in mounting position 1 (worm over) Reducer ordered with a "MOD" will be filledbased on the factory assumed mounting position, mounting position should be specified with order to assure proper lubrication.

Factory Assumed Mounting Orientation Applicable Unit Styles*B, T, F, H, FH, C Single Reduction

Worm Over D, DT, DF, DH, DFH Double Reduction Worm-WormDX, DXT, DXH, DXFH Double Reduction Helical-Worm

Worm Under U Single ReductionDU Double Reduction Worm-WormVL, VH Single Reduction

Vertical Output DVL, DVH Double Reduction Worm-WormDXVL, DXVH Double Reduction Helical-Worm

J Single ReductionVertical Input DJ Double Reduction Worm-Worm

DXJ Double Reduction Helical-Worm* INCLUDES MOTORIZED COUPLING AND QUILL INPUT VERSIONS OF ALL STYLES LISTED

Lubrication

Always check for proper oil level after filling. Capacities vary somewhat with model and mounting position.Oil should rise to bottom edge of level hole. Do not overfill.

CAUTION

Mounting UNIT SIZEPosition 813 815 818 821 824 826 830 832 842 852 860 870* 880* 8100*

1-Worm Over 4 12 12 20 24 40 56 72 112 188 312 560 768 11522-Worm Under 8 16 20 28 40 60 84 108 152 304 328 524 820 12803-Vertical Output 4 16 16 28 32 48 68 88 128 248 320 332 460 6404-Vertical Input 4 16 16 24 32 48 72 92 128 248 325 584 800 12005-Worm Over on Secondary — — — N/A N/A N/A N/A 192 308 320 485Unit of Double Reduction 805 1144 1716

* Shipped dry16 OZ. = 1 PINT

2 PINTS = 1 QUART4 QUARTS = 1 GALLON1 GALLON = 128 OZ.

Oil Capacities (ounces) - Standard Units

Instruction Manual

Phone: (262) 377-8810 Fax: (262) 377-00905

Standard Speed Reducer Mounting Positions & Vent Plug, Level and Drain Locations

Maintenance - Standard UnitsYour IRONMAN® BY OHIO GEAR reducer has been tested and adjusted at the factory. Dismantling or replacement of components must bedone by LEESON to maintain the warranty.

Inspect vent plug or stem of the Environ-Seal (if equipped) often to insure it is clean and operating.

VENT

DRAIN

OILINSPECTIONPLUG

DRAIN

VENT

OILINSPECTION

PLUG

DRAIN

OILINSPECTION

PLUG

VENT

VENT

DRAIN

OILINSPECTION

PLUG

DRAIN

VENT VENTOILINSPECTIONPLUG

DRAIN

(All primary unitshave their own oilinspection plug.)

For 4-1/4" through 6" center distance units (far side plug).*

Mounting bolts should be routinely checked to ensure that the unit is firmly anchored for proper operation.

Seals: The IRONMAN® BY OHIO GEAR line of speed reducers utilize premium quality seals which are the state-of-the-art in sealing technology. Seals are, however, a wear item and eventually need to be replaced. Replacement can be easily accomplished by following thesteps below:

1. Remove the worn seal without damaging the shaft surface or the seal bore. This can be done by drilling a .062”diameter hole in the seal casing (being careful not to drill into the bearing behind the seal). Screw a #10 sheet metal screwinto the hole and pry out the seal.

2. Clean the seal bore of sealant.3. Before installing the new seal, use electrical tape to cover any keyways on the shaft to prevent seal lip damage.4. Grease the seal lips with bearing grease and apply a sealant to the seal bore.5. Slide the seal over the shaft being careful not to fold the inner lip over on any shaft steps.6. Press the seal into its bore with a sleeve that presses on the seal casing, being careful to keep the seal square in its bore.

If seal leakage has resulted in the loss of a significant amount of oil, it may be necessary to add more lubricant. For normal ambient temper-ature conditions, LEESON recommends Mobil SHC 634 synthetic gear oil for worm drives, and MOBILGEAR 629 (non-synthetic) oil for hel-ical drives.

CAUTION

Always check for proper oil level after filling. Do not overfill or underfill with oil, or injury to personnel, reducer, orother equipment may result.


CAUTION

CAUTION

Instruction Manual

Phone: (262) 377-8810 Fax: (262) 377-00906

Maintenance - WASHGUARD® and ALL-STAINLESS STEEL Reducers

Your LEESON WASHGUARD® and ALL-STAINLESS STEEL reducer has been tested and adjusted at the Factory. Dismantling or replacementof components must be done by LEESON to maintain the warranty.

Inspect the stem of the Enviro-Seal often to ensure it is clean and operating properly.

Mounting bolts should be routinely checked to ensure that the unit is firmly anchored for proper operation.

Seals: The LEESON line of speed reducers utilize premium quality seals which are state-of-the-art in sealing technology. Seals are, however, awear item and eventually need to be replaced. Replacement can easily be accomplished by following the procedure given under Maintenance -Standard Units on page 5.

If seal leakage has resulted in the loss of a significant amount of oil, it may be necessary to add more lubricant. For normal ambienttemperature conditions, LEESON recommends Mobil SHC 634 synthetic gear oil for worm drives, and Mobil SHC 150 (synthetic) for helicaldrives. For all WASHGUARD® and ALL-STAINLESS STEEL worm drives, fill the gearbox to the level indicated in the diagram below.

CAUTION

Always check for proper oil level after filling. Do not overfill or underfill with oil, or injury to personnel, reducer, orother equipment may result.


CAUTION

CAUTION

~22°

Standard Oil Level for LEESON WASHGUARD® andALL-STAINLESS STEEL Reducers

LEVEL LEVEL

Instruction Manual

Phone: (262) 377-8810 Fax: (262) 377-00907

Installation of “C” Flange Adapter KitsWith Flexible Couplings (BM Style)

120

47

110

42112

114

115

117118

113

116

These instructions must be followed for proper installation of “C” Flange Adapter and Motor onto IRONMAN® BY OHIO GEAR Worm Reducers.These reducers have input ball bearings mounted directly in the housing, and no bearing cap on the input shaft side.

1. Make sure reducer pilot and face, and flange pilot and face are clean.2. Install “C” Flange Adapter (ref. 110) onto reducer, being careful not to damage seal.3. Install capscrews (ref. 42) and tighten to torque specified in tightening torque chart on page 6.4. Install key (ref. 112) in the input shaft, key should be flush with shaft end. Install coupling hub (ref. 114) flush with end of reducer shaft.5. Rotate input shaft of reducer to position the set screw (ref. 113) in line with access hole provided in the “C” flange adapter, tighten set

screw (make sure key is properly in place under set screw).6. Slide plastic sleeve (ref. 115) over reducer hub until it comes to a stop.7. Discard motor key and install key supplied in kit (ref. 118) flush with motor shaft end. Install coupling hub (ref. 117) flush with end of

motor shaft and tighten set screw (ref. 116), make sure key is under set screw.8. Install motor by sliding hub into sleeve until it comes to a stop. Install capscrews (ref. 47) and tighten to torque specified on tightening

torque chart.9. Install plastic plug (ref. 120) into the “C” Flange Adapter access hole.

Items Included in “C” Flange Adapter Kit

1. One “C” Flange Adapter (ref. 110)2. Four capscrews (ref. 42) adapter to reducer3. One reducer coupling hub (ref. 114)4. One reducer input key (ref. 112)5. One reducer hub set screw (ref. 113)6. Four capscrews (ref. 47), motor to adapter

7. One coupling sleeve (ref. 115)8. One motor coupling hub (ref. 117)9. One motor shaft key (ref. 118)

10. One motor hub set screw (ref. 116)11. One access hole plug (ref. 120)

Capscrew Tightening TorqueGrade 5 Capscrews (dry, without lubricant)

Capscrew Size Tightening Torque (lb.-in.)

1/4 UNC 755/16 UNC 1553/8 UNC 2751/2 UNC 780

Parts List

Phone: (262) 377-8810 Fax: (262) 377-00908

18A18B

2218A

18B

23

26

16

15

14

19

17

22

24

2

8

7

56

10

1228

317

2

24

20

27

1

23

26

13

21

26

131

136

11

6

134

132

25

7130

129

132

132

133

BASIC SINGLE REDUCTION UNIT (B-STYLE)ITEM # DESCRIPTION

1 HOUSING2 PIPE PLUG3 VENT PLUG4 SPLASH GUARD5 INPUT CAP6 O-RING7 HEX HEAD CAP SCREW8 INPUT OIL SEAL9 INPUT BEARING (cup and cone

for 842 and larger units)10 INPUT BEARING (cup and cone

for 842 and larger units)�11 RETAINING SCREW

12 INPUT WORM SHAFT13 OUTPUT COVER - OPEN14 OUTPUT COVER - CLOSED15 O-RING16 OUTPUT COVER SHIM (as

required)17 OUTPUT OIL SEAL18 OUTPUT BEARING (18A. CONE,

18B. CUP)19 HEX HEAD CAP SCREW

♣ 20 OUTPUT SHAFT - SINGLE ♣ 21 OUTPUT SHAFT - DOUBLE

22 GEAR SPACER23 GEAR KEY (only used on size

826 and larger units)♣ 24 OUTPUT GEAR*25 INPUT COVER26 KEY - OUTPUT EXTENSION27 KEY - INPUT EXTENSION28 NAMEPLATE

QUILL MOTOR FLANGE UNIT (BMQ-STYLE)

40 QUILL MOTOR FLANGE41 INPUT OIL SEAL42 HEX HEAD CAP SCREW (flange

to housing)43 RETAINING RING - SHAFT

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