power slips -2130 generic1

Varco Technical Education Center

PS-21/PS-30 TrainingPS-21/30 Version 1

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Course ObjectivesVarco Technical Education Center

Upon completion of this course the student should:One Day Course Fully understand the importance of safety and how it relates to the operation/maintenance of the PS 21/30 Understand why the PS 21/30 was developed and the design criteria behind its development Understand the system hook-up Show competency in the safe and correct operation of the PS 21/30 Know how to troubleshoot the operation of the PS 21/30 Be able to do all the above Show a high level of competency in the maintenance procedures associated with the PS 21/30

Two Day Course

PS-21/30

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Program ContentsDay 1 General OverviewSafety General Safety Review PS 21/30 SafetyVarco Technical Education Center

General Information Background to PS 21/30 Development

General Description System Configurations Major Components System Requirements

PS-21/30

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Program ContentsDay 1 OperationInstalling the PS 21/30 Installation process Hooking up the PS 21/30 Installation check list Equipment set-up Calculating crushing loads Selecting slips/inserts Installing the slips in the PS 21/30 Dressing & installing the insert carriers System operation Operating the PS 21/30 Routine maintenance ExaminationPS-21/30 Version 1Varco Technical Education Center

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Program ContentsDay 2 MaintenanceSafety Analysis Dropped Pipe AnalysisVarco Technical Education Center

PS Releasing from RST

Hydraulic Systems Applying Electrical Power Applying Hydraulic Power

Setting the Slips Raising the Slips

PS-21/30

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Program ContentsDay 2 MaintenanceAutomated Lubrication General DiscussionVarco Technical Education Center

Controls & Programming

Part Replacement Changing the Centring-Device Ram Inserts Changing the Centring-Device Ram Guides

Troubleshooting PC-POL Rules Troubleshooting Flowcharts

PS-21/30

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Program ContentsDay 2 MaintenanceInspection Hinge Pin WearVarco Technical Education Center

Bore Wear (The Paper Test)

Repair Disassembling the Main Cylinders Replacing the Piston

Replacing the Seals Reinstalling the Main Cylinders Hoisting Rings Hydraulic Manifold Block

Cover Hinge Pins Centring Device Cylinders

ExaminationPS-21/30 Version 1

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Day 1 Operation

PS-21/30

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PS Specific SafetyVarco Technical Education Center

The L-bars are for opening the top cover ONLY! DO NOT lift the Power Slip by the L-bars Handle with care (hydraulic hinge pins)

PS-21/30

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The PS should be lifted ONLY with the dedicated lifting eyes

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After assembly, always lock the ram-insert in the universal guide assembly with the lynch pin

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The plate shown warns personnel against risks and dangers The plate must ALWAYS be present on the PS 21/30 The plate is a free-item and available on request at your nearest authorized Varco repair facility The best advice - Do Not touch the PS!

PS-21/30

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General InformationPS-21/30 Version 1

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Background to DevelopmentVarco Technical Education Center

The rig floor can be a dangerous place Especially with new racking systems, it is not safe to have personnel moving around on the rig floor In these cases the use of hand and foot-operated slips is not recommended

PS-21/30

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FunctionVarco Technical Education Center

The PS 21/30 is designed to clamp and suspend tubular goodsPS-21/30 Version 1

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General DescriptionVarco Technical Education Center

The PS 21/30 is a hydraulically operated power slip which is equipped with replaceable slip assemblies and insert carriers to handle various styles and sizes of tubular The PS 21/30 can handle casing, drill pipe and drill collars and is used in combination with the Rotary Support Table

PS-21/30

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PS21/30 OperationVarco Technical Education Center

PS-21/30

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RatingsVarco Technical Education Center

PS 21 = 2-3/8 14 up to 500T

PS 30 = 2-3/8 20 up to 750T

PS-21/30

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System ConfigurationsVarco Technical Education Center

The PS 21/30 is Operated in Combination with the Rotary Table

Like the FMS, it eliminates the need for work platforms during casing operationsPS-21/30 Version 1

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System ConfigurationsVarco Technical Education Center

The PS 21/30 can be installed in a number of different rotary tables including Varcos RST

Example of PS30 in Emsco 49 Rotary Configuration

PS-21/30

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Connection and OperationVarco Technical Education Center

Through incorporation of a hydraulic slip ring in the Varco RST, hoses do not need to be disconnected The PS 21/30 slips will set or raise when a remote command is given by the driller The status of the slips (set or up) is determined by the signal-line pressure

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Rotary TablesVarco Technical Education Center

PS 21 = 37 PS 30 = 49

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Back-Up TorqueVarco Technical Education Center

90,00080,000 70,000 60,000 50,000 40,000 30,000 20,000 10,000 0

13.375 10.75

Maximum Back-Up Torque (ft.lbs)

45,000ft.lbs PS21 Operational Limit

6.625 5

0

10

20

30

40

50

60

PS-21/30

Additional Pipe Weight (short tons) Version 1

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Back-Up TorqueVarco Technical Education Center

The PS 21 can generate a back-up torque up to 45,000ft.lbs - depending on weight and type of string The PS 30 can generate a back-up torque up to 55,000ft.lbs - depending on weight and type of string

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Slip ArrangementVarco Technical Education Center

The PS 21/30 allows handling of all pipe sizes and types The slips have a rapidchange system with no loose parts Two handles on the middle slip retract and lock the spring-loaded retaining pin

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Insert CarriersVarco Technical Education Center

Insert carriers can be changed in less than 5 minutes even with pipe in the hole A special locking mechanism eliminates the use of bolts/pins

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Load RingsVarco Technical Education Center

Depending on the size of the insert carrier, one or two load rings have been added

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Tubular SizesVarco Technical Education Center

PS 21

Universal Slip with Insert Carriers to Handle Pipe up to 10 Universal Ram with Ram Inserts to Centre Pipe up to 10 Size Specific Slips to Handle Pipe from 10 - 14 Size Specific Rams to Centre Pipe from 10 - 14

PS 30

Universal Slip with Insert Carriers to Handle Pipe up to 16 Universal Ram with Ram Inserts to Centre Pipe up to 16 Size Specific Slips to Handle Pipe from 16 - 20 Size Specific Rams to Centre Pipe from 16 - 20

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Centering DeviceVarco Technical Education Center

When the pipe is hard to one side (due to rig movement or heavy directional drilling) a centring device centres the pipe prior to setting the slips The PS 21 always requires a centring device on floating rigs The PS 30 requires a centring device on all rigtypes

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Centering DeviceVarco Technical Education Center

When a centering device is provided, a ram guide in each top cover half pushes the pipe to the centre

This happens in an automatic sequence before the slip cylinders are actuated to push the slips down No modifications to the controls is needed to operate a PS with a centring device

The ram inserts are pipe size specific and must be changed with each slip/insert carrier changePS-21/30 Version 1

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Stainless Steel Ram InsertVarco Technical Education Center

Available for drill pipe sizes 7-5/8 and smaller The guides use a steeper top and bottom lead-in chamfer to better guide the tool joint through the top guides The contact area between pipe and ram insert is enlarged A machined groove is included to maximum allowable wearPS-21/30 Version 1

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Reliable Slips Set SignalVarco Technical Education Center

By the side-slips an indicator pin is activated which operates an indicator valve. The valves on left- and right-hand side are set in series with the barrel port signal from the right hand actuator to give a reliable slips set signal on the driller console.

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Hand Slip BowlsVarco Technical Education Center

The PS 21/30 can be fitted with insert bowls for use with hand slips Extended hand slip handles are fitted between the handle and body of the hand-slip to eliminate clearance problems with the top cover

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Hand Slip BowlsVarco Technical Education Center

Number#1 PN:202362 #2 PN:202363 #3 PN:202364 #3 PN:202361

PS PS 30 PS 30

Rating 150 tons 150 tons

Size Range13-3/8 11 10 9-5/8

Slip Size 16 16

PS 30PS 21/30

150 tons100 tons

8-5/8 2-3/88-5/8 2-3/8

1610

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Pipe WipersVarco Technical Education Center

When tripping out drillpipe, Varco recommends that a 19" spiral (helical) wiper be placed below the tool This wiper can be installed with the tool still in the rotary by pulling the insert carriers and lowering the wiper through the slips Position the wiper UNDERNEATH the tool to keep mud away from the moving parts of the PSPS-21/30 Version 1

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General RequirementsGeneralTubing & HosesVarco Technical Education Center

All hoses connecting the PS to the power unit/ring main must be minimum 2,300psi (with centring device) 3,000psi A closed centre power unit or ring line with a minimum of 2,500psi working pressure and 5gpm is required A flow rate of 10gpm is recommended 180F (82C)

Minimum Working Pressure Maximum Working Pressure Power Unit

Maximum Oil Temperature Application Filter

An in-line pressure filter in the hydraulic supply line between the power unit and the hookup kit An in-line 50 filter in the hydraulic signal line on the hook-up kit manifoldVersion 1

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Pressure RequirementsPressure RequirementsVarco Technical Education Center

Optimum pressure is 2,500psi Pressure must not be less than 2,000psi for a PS without a centring device Pressure must not be less than 2,300psi for a PS with a centring device Back-pressure must not exceed 200psi for a PS with a centring device

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Pressure RequirementsSpecial NoteVarco Technical Education Center

The sequence of the ram-guide and slip-cylinders is automatically controlled by the manifold on the PS The sequence valve is activated by a pressure difference between the slips up hose and the slips down hose The PS will function best when the activate pressure is 2,300psi and the back-pressure is no more than 200psi With these pressure settings, a centring force of tons is obtained at the ram-guides 10

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Hydraulic Fluid RequirementVarco Technical Education Center

Petroleum based hydraulic fluid with properties which provide inhibition, anti-rust, anti-foam de-aerating and anti-wear properties Fluid viscosity 150-225 SSU (SEA 10W) at 100F (38C) and with a viscosity index of 90F minimum

Do NOT use non-petroleum base or fire-resistant fluids

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Grease RequirementsVarco Technical Education Center

A high quality, multi-purpose, water-resistant, extreme pressure (EP1 or EP2) grease, with a minimum dripping point of 300F (150C) should be used

The use of grease with a dripping point of at least 480F (250C) is recommended

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Grease RequirementsVarco Technical Education Center

ApplicationBowl (North Sea) Bowl (GOM)

BrandTRIBOL TRIBOL

TypeMOLUB ALLOY 968 SF Heavy MOLUB ALLOY 936 SF Heavy

QuantityN/A N/A

Cylinder Housing

TRIBOL

MOLUB ALLOY 968 SF Heavy

50cc (3.2in)

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Installing the PS 21/30PS-21/30 Version 1

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Power Slip IdentificationVarco Technical Education Center

The identification stamp individually identifies the toolIt is therefore very important that, when contacting Varco for service purposes, to have this information availablePS-21/30 Version 1

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Installing the PS in the RotaryVarco Technical Education Center

3. Lift the PS with the special lifting sling

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4. Rotate the locking pins to the retracted position

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5.

Ensure that the manifold block on the PS 21/30 is on the same side as the hoses/connections and the drive-lugs (lugs, pockets or pins) are in position with those of the rotary Lower the PS 21/30 into the rotary table

6.

7. Engage the locks

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Hooking Up the PSFlushing/Filtering SystemVarco Technical Education Center

An in-line filter is placed between the rigs pressure ring and the pressure line to the PS hook up system A flushing manifold ensures that all return oil flows directly into the rigs return ring line and does not re-enter the hook up kit manifold

The indicator gives information about the condition of the filter: Green = OK Red = Exchange filterPS-21/30 Version 1

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Hooking Up the PSVarco Technical Education Center

Mounting Plate

Top Plate = HUK

Bottom Plate = flushing + greasing

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Hooking Up the PSAutomatic slip greasing and hydraulics flushing cabinetVarco Technical Education Center

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Hooking Up the PSMounting plate hydraulic hook up manifoldVarco Technical Education Center

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Grease pump + bucket

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Drillers Control Panel

Hook Up Manifold Slips Up Switch (1600psi) Slips Set Switch (1800psi) Low Pressure Switch (2000psi)

JB

Accumulator

Manifold Block

Hydraulic Controls

Pressure Control (2500psi)

PS 21/30

Pressure Filter

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Hooking Up the PSPS21 with centering device and automatic slip greasing system 5 hoses to be connected;Varco Technical Education Center

GREASE SIDE-SLIPS

SLIPS DOWN

SIGNAL

SLIPS UP

GREASE CENTER SLIPPS-21/30 Version 1

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Hooking Up the PSStandard PS-21 3 hoses to be connected;Hydraulic hose for slips down Hydraulic hose for slips up Hydraulic signal hoseVarco Technical Education Center

SLIPS UP SIGNALVersion 1

SLIPS DOWNPS-21/30

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Hooking Up the PSPS 30 in RST configuration, without automatic slip greasing systemVarco Technical Education Center

Grease nipple

Grease nipple

SLIPS UPPS-21/30

SLIPS DOWNVersion 1

SIGNAL

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Hooking Up the PSPS 30 in any configuration but RST, with automatic slip greasing system 5 hoses to be connectedVarco Technical Education Center

SLIPS UP GREASE CENTER_SLIP

GREASE SIDE SLIPS

SLIPS DOWN

SIGNAL

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Installation ChecklistVarco Technical Education Center

Arrange the hoses on the rig floor in such a position that the hazard of cutting or dragging is minimised Before operating, remove air from the hydraulic circuit by fully cycling the slips 10 times (or flush with flushing kit) Varco recommends that only OEM controls be used to operate the PS use of other controls may result in hydraulic circuit damage

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Equipment Set-UpPS-21/30 Version 1

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Pipe Crushing LoadsVarco Technical Education Center

F = Qyp x A x

1

1+

RK + L

RK L

2

F Qyp A

= = =

Crushing Load (lbs) Yield Stress of Pipe (psi) Sectional Area of Pipe (in2)

R L A

= = =

Outside Radius of Pipe (in) Length of Slip Contact (in) Crushing Factor (Nominally 2.6)

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Opening

Maximum Throat Opening (Slips-Up)

Ram Guides

P/N for Ram Guides for PS21 with CD

202346-663

P/N for Fixed Guide for PS21 Without CD

202302-913

Selecting Slips & Inserts

Fixed Guides

Fixed Guide Diameter (in) for PS21 without CD

Insert p/n

2632

Slips & Inserts

Insert Carrier Assembly Less Inserts p/n

202273-1

Insert Carrier Assembly p/n

202273-663

Slip Body p/n

202250-1 500T

Pipe Size & Type

Rating

Plain DC (in) Zip DC (in) Nominal Size (in)

-

-

PS-21/30 65/8

Version 1

Qty of Inserts

24B-48

9-1/8

11-5/8

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Installing the Slip in the PSVarco Technical Education Center

Ensure that hydraulic lines are disconnected before ANY work is carried out on the PS-21/30

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Open the top covers using the tugger line Grease the ribs on the inner bore of the PS 21/30 Grease the ribs of the slip assembly

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Note: Slip-pin engagement will be easier with the lifting arms approx. 1/3 down (45)

Control the slips down and stop the movement with the ball valve in the slips-down line

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Lower the slipassembly using the slip assembly lifting tool. P.N:50004551

Position the upper center-slip rib in between the actuator leversPS-21/30 Version 1

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Installing the Slip in the PSMove the slip mounting pins outward use the special operating tool for PS slip handles P.N: 50004552Varco Technical Education Center

Push the pins from inside the slotted hole and LOCK the slip assemblyPS-21/30 Version 1

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4.

After lowering the slip assembly into the PS 21/30, disconnect the handling tools.

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Sizing the InsertsSize inserts for slip body 10 for PS-21Varco Technical Education Center

The correct insert carrier can be measured with an OD calliper using: X = 7 ( (nominal size clamping diameter) / 2 )

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Dressing the Insert CarrierVarco Technical Education Center

1.

Remove the screws and spring washers on top of the insert carrier assembly

DO NOT grease the grooves Bottom inserts must be Beveled

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Dressing the Insert CarrierVarco Technical Education Center

2.

Dress the slip assembly and lock it with socket head lock-screws and lockwashers When changing insert SIZE, DO NOT forget to grind and new stamp the correct SIZE

DO NOT forget the yellow SIZING Insert (basic insert) P.N:50004570(1) Size

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Installing the Insert CarrierVarco Technical Education Center

1.

Pick up the insert carrier assembly with the revised pogo-stick for lifting insert-carriers PS P.N:50004600-1 Grease the back of the lock trigger and the big dovetail

2.

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3. Place the insert carrier with the dove tail on the insert carrier retainer in the slip and push the latch back with the insert carrier

Lift the insert carrier with the insert carrier lifting hook DO NOT grease the back of the insert carrier!PS-21/30 Version 1

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4.

Lower the insert carrier

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5. 6.

The latch will engage automatically Connect the hydraulic hoses to the PS 21/30

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Removing the SlipsVarco Technical Education Center

1. 2. 3. 4.

Raise the slips Close the ball-valve in the slips down hose Operate the controls to set the slips Slightly open the ball-valve and lower the slips just enough to have slack on the slip quick-release pins Close the ball-valve and disconnect the hoses Connect a 2-way lifting sling to the lifting eyes on the right and left slip segments Gently raise the slips until the quick release slip pins can be retracted

5. 6.

7.

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Removing the SlipsVarco Technical Education Center

8. Disconnect the slip quickrelease pins

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Disconnecting HosesVarco Technical Education Center

Hoses could be disconnected: To allow the tool to be lifted out of the rotary table To allow the PS and rotary table to be rotated Hoses must be disconnected: To prevent unwanted slip movement especially when someone has to work on the PS

Be careful when disconnecting hydraulic hoses Ensure that pressure is off the hoses and that string weight cannot generate pressure

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Disconnecting HosesWith Slips UP 1. 2. 3. 4. Raise the slips Close the ball-valve in the slips-set hose Operate the controls to set the slips Disconnect the quickconnects - keep the controls in the slip-down position and keep the ball-valve closed Reconnect the quickconnects Operate the controls to raise the slips Open the ball-valve in the slips-down hoseVarco Technical Education Center

5. 6. 7.

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Disconnecting HosesWith Slips SETVarco Technical Education Center

1. Set the slips2. 3. Close the ball-valve Disconnect the quickconnects keep the controls in the slips-down position and keep the valves closed Re-connect the quickconnects

4.

5. Open the ball-valve

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OperationPS-21/30 Version 1

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Operating the PS21/30Remember.Varco Technical Education Center

Be aware of the limited back-up for torque

Check that the slips/carriers are set on the correct section of the pipe The PS must be set before releasing the elevator (preferably using an interlock) The PS is properly set when the slips down signal comes on When the rotary table and the PS have to be rotated, always decouple the quick disconnects on the PS prior to rotation (except for RST) - not doing so may cause severe damage to the PS, hydraulic hoses or controls

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Operating the PS21/30Varco Technical Education Center

With the string held in the PS, make-up or break the upper stand or joint and handle it Never raise the slips whilst the pipe load is suspended in the slips

Connect all hydraulic equipment & check correct tool function

Install the PS in the rotary using all 4 x lifting eyes and 4way lifting sling ALWAYS pick up the weight of the pipe string with the elevator BEFORE raising the slipsPS-21/30 Version 1

ALWAYS Set the slips before releasing the elevator

83

Operating the PS21/30Recommendations.Varco Technical Education Center

It is recommended that the PS be operated by the driller It is recommended that the pipe is lowered slightly with the elevators whilst setting the slips It is recommended that the pipe is raised slightly with the elevators whilst releasing the slips The rotary locks on the PS may only be needed on floating rigs or while floating in pipe in case the PS is pushed out of the rotary

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Removing the PSWith Pipe in the HoleVarco Technical Education Center

BE AWARE of loose parts while lifting DO NOT lift the PS using the L-bars on the cover Lift the PS out of the rotary table ONLY using the 4-way lifting sling with curved spreader beam use ALL 4 hoist swivel rings Beware of pinching fingers between the body and the door NEVER place hands anywhere else than on the top of the door

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Removing the PSWith Pipe in the HoleVarco Technical Education Center

Lift the PS & Swing the door open Disconnect the Hydraulic Hoses Raise the slips and disengage the rotary table locks

Disengage the top cover lock on the door and gently open the top cover

Remove the hinge pin

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Handling ToolsHand-Slip Bowl Handling ToolLock Varco Technical Education Center

1. 3. 4.

Locate the tool Pull backward and lift the bowl Remove the bowl with a tugger line

2. Lock the tool

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Handling ToolsSlip Handle Operating ToolVarco Technical Education Center

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Handling ToolsSlip Assembly Lifting ToolVarco Technical Education Center

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Routine MaintenancePS-21/30 Version 1

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Daily InspectionDaily Inspection1. 2. 3. 4. 5. 6. Check for worn and damaged parts Check for loose and missing parts Check correct sizes of slips, insert carrier and top guide/ram Check correct installation of these parts Check hoses for sign of cracks, wear or abrasion Inspect hoist ring parts. Never use hoist ring that shows: signs of corrosion wear damage 7. 8. 9. Check if bail is bent or elongated Check and clean rotary table Check locking of: bolts and nuts safety wire slotted nuts & cotter pins bent lock tabs, safety latch pins & lock bars roll and dowel pins snap rings cotter pinsVarco Technical Education Center

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Functional InspectionVarco Technical Education Center

Functional Inspection1. Connect the PS 21/30 to the control manifold and check: Correct function of tool Slips Up: Slips raise then centring rams go out Slips Set: Centring rams go in first then slips set Check hydraulic pressure

2.

Check Slip Signals:Check slips down signal is on when slips are set: Check slips down signal is off when slips are up Check slips up signal is on when slips are up Check slips up signal is off when slips are down

3. 4. 5. 6. 7.

If the PS door was open on installation, check that the removable hinge-pin has been re-installed Check correct engagement of slip and insert carrier quick release mechanism Check correct installation and locking of centring rams/ram inserts Engage the top cover lock after inspection Always keep top cover lock engaged during operation

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LubricationVarco Technical Education Center

Do NOT apply grease: To the back-side of the insert carriers (except for the dovetail slot) To the inner bore of the slips To the dovetail slots retaining the inserts The back-side of inserts

NEVER use tool-joint compound (pipe dope) for lubrication purposes

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LubricationVarco Technical Education Center

Manual lubrication of the PS 21/30: After every 25 joints (average) run Prior to cementing When loads will be hanging for more than 1 hour Prior to storage

Automated lubrication of the PS 21/30: Automated greasing of the back of the slips is carried out after 25 slip movements

Carry out a manual grease cycle with the grease system at the start and finish of every tool usage.

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Manual Lubrication with AGSAutomated Grease SystemVarco Technical Education Center

Red light indicates when grease bucket empty Push the button once for one grease sequence at start and finish of every tool usage

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Manual LubricationVarco Technical Education Center

Action 1 2 3 4 5 6 7 8 Flushing and filtering system Grease the cylinder levers Grease the nipples on the outside of the top cover Grease the nipples on the inside of the top cover (ram guides) Grease the nipples on the top cover hinge pins Grease the nipples on the knuckle pins Grease the hinge pins Grease the door hinge pins

Nipples 4 2 2 2 2

Method After connecting the hydraulic hoses to the PS

Apply grease manually or use a grease gun until grease is seen exiting the bores

4-

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Manual LubricationGrease the Cylinder LeversVarco Technical Education Center

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Manual LubricationGrease the Nipples on the Outside of the Top CoverVarco Technical Education Center

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Manual LubricationGrease the Nipples on the Inside of the Top Cover (Ram Guides)Varco Technical Education Center

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Manual LubricationGrease the Nipples on the Hinge BossesVarco Technical Education Center

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Manual LubricationGrease the Nipples on the Knuckle PinsVarco Technical Education Center

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Manual LubricationGrease the Top Cover Hinge PinsVarco Technical Education Center

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Manual LubricationGrease the Door Hinge PinsVarco Technical Education Center

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Manual LubricationVarco Technical Education Center

Lubricate the Insert Carrier/Slip Set: Prior to installation Prior to storage

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Manual LubricationGrease the Insert Carrier/Slip Set before installationAction 1 2 3 Grease the back of the slips Grease the lock trigger Grease the dovetail of the insert carriers Apply with a brush MethodVarco Technical Education Center

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Manual LubricationGrease the Back of the SlipsVarco Technical Education Center

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Manual LubricationGrease the Lock TriggerVarco Technical Education Center

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Manual LubricationGrease the Dovetail SlotVarco Technical Education Center

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Manual LubricationWeekly LubricationAction 1 2 3 Grease the slot in the ram guides Grease the cover plate lock Grease the sliding mechanism Apply with a brush MethodVarco Technical Education Center

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Manual LubricationGrease the Ram Guide SlotVarco Technical Education Center

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Manual LubricationGrease the Top Cover LockVarco Technical Education Center

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Manual LubricationGrease the Sliding MechanismVarco Technical Education Center

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Automated Slip GreasingVarco Technical Education Center

The performance of the PS power slip is related directly to the greasing of the back of the slipsVarco has developed an automatic greasing system which uses standard grease buckets The system greases the backside of the slip every 25 slip cycles

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The system uses the slips set pressure switch signal to count the slip cycles and, at a preset number of cycles the grease pump starts to pump grease from the bucket The grease is divided using a directional control valve

Directional Control Valve

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Port A

Ports B & C

Center Slip

Left/Right Slip

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Using a dedicated PLC, greasing frequency and quantity can be adjusted to meet job specific requirements

Siemens PLC

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Light on top of Junction Box

Manual Grease Cycle

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Flushing and FiltrationVarco Technical Education Center

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Flushing and FiltrationVarco Technical Education Center

Operate the flush handle for flushing

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Day 2 MaintenancePS-21/30 Version 1

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Safety Analysis

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Dropped Pipe AnalysisVarco Technical Education Center

Ram Insert Not Installed Lynch Pin Not Used OR Lynch Pin Not Properly Fastened Ram Insert Fallen Out OR

PS-21/30

Version 1

122


Rig Movement (Floaters) OR Heavy Directional Drilling AND Malfunctioning Hydraulic Hinge Pin No Centring Device OR Malfunctioning Centring Device OR Top Cover Open Cylinder Mounting Plate Loose Knuckle Centring Device Loose Knuckle Pin Lost

No Ram Insert

PS-21/30

Version 1

123


No Insert Carriers Inserts Too Small Worn Inserts OR Opening (Slips Set) Is Too Big

Slip Actuator Defective Pipe String Tilted Sticking Slips

OR

Slips Not Fully Down

OR

Malfunctioning Interlock PS-21/30 Version 1

Dropped Pipe

Malfunctioning Hydraulics

124

PS Releasing from RSTVarco Technical Education Center

Rotary Table Lock Not In Rotary Table Locks Broken

OR

Rotary Table Not Functioning Buoyancy While Running Casing AND

BX Pulling Up AND PS Slips Set

Interlock Malfunctioning

OR

Sticking Slips Malfunctioning Hydraulics OR

Set Slips Dont Release AND

PS Releases From RST

Rig Movement OR Kicks PS-21/30

Upward Pipe Movements Version 1

125


Hydraulic SystemsPS-21/30 Version 1

126

Applying Electrical PowerVarco Technical Education Center SYSTEM PRESSURE LOW POWER

SIGNAL PS 30 OPEN

SIGNAL PS 30 CLOSED

Power

SLIPS OPEN

SLIPS CLOSED

PS-21/30

Version 1

127

Applying Electrical PowerVarco Technical Education Center31 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

9

101

P Power O

11

1 2 3 4 5 6 7 8 30

1 2 3 4 5 6 7

12

13

PS-21/30

Version 1

128

Applying Hydraulic PowerVarco Technical Education Center

ACCU

To/From Grease/Flushing Kit

To Hook-Up Kit

PPS-21/30

BVersion 1

129

Low Pressure AlarmVarco Technical Education Center E1 2

3

2

1

PS1

PPS-21/30 Version 1

T

130

Low Pressure AlarmVarco Technical Education Center

E149E2 10E2 11E3 12E3 13E3 9E3 10E3 11E2 12E2 13E2 9E1 10E1 12E1 13E1 11E1 14E4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

1

E9 E10

2

E11 E12

3 4 6 7 5

E13

14E1

8

PS-21/30

Version 1

131

Low Pressure AlarmVarco Technical Education Center31 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

9

101

P Power O

11

1 2 3 4 5 6 7 8 30

1 2 3 4 5 6 7

12

13

PS-21/30

Version 1

132

Low Pressure AlarmVarco Technical Education Center SYSTEM PRESSURE LOW POWER

SIGNAL PS 30 OPEN

SIGNAL PS 30 CLOSED

Power

SLIPS OPEN

SLIPS CLOSED

PS-21/30

Version 1

133

Setting the SlipsVarco Technical Education Center SYSTEM PRESSURE LOW POWER

SIGNAL PS 30 OPEN

SIGNAL PS 30 CLOSED

Power

SLIPS OPEN

SLIPS CLOSED

PS-21/30

Version 1

134

Setting the SlipsVarco Technical Education Center31 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

9

101

P Power O

11

1 2 3 4 5 6 7 8 30

1 2 3 4 5 6 7

12

13

PS-21/30

Version 1

135

Setting the SlipsVarco Technical Education Center


1

E9E10

2

E11 E12

3 4 6 7 5

E13

14E1

8

PS-21/30

Version 1

136


E9

3

2

1

1

2

3

B1PS-21/30

TVersion 1

P

A1

E1 0

137


S1 B1 A1


To Hook-Up Kit

PPS-21/30

TVersion 1

138


B1PS-21/30

A1Version 1

S1

139


E11

3

2

1

PS2

B1

SV1

S1

PS-21/30

Version 1

140



1

E9 E10

2

E11 E12

3 4 6 7 5

E13

14E1

8

PS-21/30

Version 1

141

Setting the SlipsVarco Technical Education Center31 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

9

101

P Power O

11

1 2 3 4 5 6 7 8 30

1 2 3 4 5 6 7

12

13

PS-21/30

Version 1

142

Setting the SlipsVarco Technical Education Center SYSTEM PRESSURE LOW POWER

SIGNAL PS 30 OPEN

SIGNAL PS 30 CLOSED

Power

SLIPS OPEN

SLIPS CLOSED

PS-21/30

Version 1

143

Raising the SlipsVarco Technical Education Center SYSTEM PRESSURE LOW POWER

SIGNAL PS 30 OPEN

SIGNAL PS 30 CLOSED

Power

SLIPS OPEN

SLIPS CLOSED

PS-21/30

Version 1

144

Raising the SlipsVarco Technical Education Center31 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

9

101

P Power O

11

1 2 3 4 5 6 7 8 30

1 2 3 4 5 6 7

12

13

PS-21/30

Version 1

145

Raising the SlipsVarco Technical Education Center


1

E9 E10

2

E11 E12

3 4 6 7 5

E13

14E1

8

PS-21/30

Version 1

146


E9

3

2

1

1

2

3

B1PS-21/30

T

PVersion 1

A1

E1 0

147


S1 B1 A1


To Hook-Up Kit

PPS-21/30

TVersion 1

148


B1PS-21/30

A1Version 1

S1

149


E13

3

2

1

PS3

SV2

A1

S1

PS-21/30

Version 1

150



1

E9 E10

2

E11 E12

3 4 6 7 5

E13

14E1

8

PS-21/30

Version 1

151

Raising the SlipsVarco Technical Education Center31 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

9

10 1

P Power

O

11

1 2 3 4 5 6 7 8 30

1 2 3 4 5 6 7

12

13

PS-21/30

Version 1

152

Raising the SlipsVarco Technical Education Center SYSTEM PRESSURE LOW POWER

SIGNAL PS 30 OPEN

SIGNAL PS 30 CLOSED

Power

SLIPS OPEN

SLIPS CLOSED

PS-21/30

Version 1

153

FunctionsVarco Technical Education Center

ACC

Minimizes Pressure Fluctuations and Assures Pressure for Torque Back-Up Feature

CV 1PC 1

Check Valve Protects Against Unloading of AccumulatorPressure Reducing Valve for a Constant Pressure Set @ 2500psi

PG 1DV 1 PS 1

Pressure Gauge to Check System PressureOperates Slips Low Pressure Indicator

PS 2PS 3

Pressure Switch for Signal Slip SetPressure Switch for Signal Slip Up

PS-21/30

Version 1

154


SV 1

Controls Slip Down" Signal

SV 2CV 2

Controls Slip Up" SignalProtection Against Switching P&T Line

PS 1,2,3 Pressure Switches

F1 to F5 FiltersPG 2 PG 3 Pressure Gauge to Check Slips Set Signal Pressure Gauge to Check Slips Up Signal

PS-21/30

Version 1

155


PC 1 The control manifold can be connected to a closed centre power supply with working pressure between 2,500 and 3,000psi Because the PS has a maximum working pressure of 2,500psi, PC 1 is set at 2,500psi to protect the PS against overloading ACC, CV 1 & PS 1 The accumulator ACC and check valve CV 1 reduce pressure fluctuations in the power supply and maintain the back-up feature

Should the pressure in the accumulator drop below 2,000psi, PS 1 gives a signal that the back-up feature is no longer valid

PS-21/30

Version 1

156


DV 1 This directional control valve operates the slips SV 1 & SV 2 When the slips are set, the PS gives a hydraulic signal back to the control manifold SV 1 transfers this signal to the pressure switch PS 2, eliminating a false signal in the slips up position PRV 1 & FC 1 PRV 1 (pressure relief valve) controls the slips power up force whilst FC 1 (flow control) controls slip speed

PS-21/30

Version 1

157


Automated LubricationPS-21/30 Version 1

158

Automated LubricationSiemens PLC systemVarco Technical Education Center

By using the buttons on the front of the SIEMENS LOGO, the parameters for the timer can be set and changed Three settings are important; 1. The time the solenoid is operated to accomplish a full pump stroke (B20 and B22)The higher the viscosity the longer it takes to make a full pump stroke A is the centre slip whilst B and C are the left hand and right hand slips

2. The time a greasing sequence is taking (B08 and B09)The type of grease and the viscosity determines these parameters

3. B06 is the number of slips sets after which a grease cycle startsThis depends on the grease properties and field conditions

PS-21/30

Version 1

159


The SIEMENS LOGO is brought up on the module by pressing the "ESC" and "OK" buttons simultaneously

The following message appears on the display:

PS-21/30

Version 1

160


By using the scroll buttons, select "Set Param" option and press "OK"

By using the scroll buttons, select the function block required

PS-21/30

Version 1

161


If you want to change the parameters, select the function block and press "OK"

The following message appears on the display;

B3 : T T Ta

=00.50s =00.00s

PS-21/30

Version 1

162


B03 is the function block T for the set value Ta is the actual value

To close the parameter module press "ESC" twicePS-21/30 Version 1

163


Regular InspectionsPS-21/30 Version 1

164

Six-Monthly InspectionVarco Technical Education Center

Inspection Tasks 1 2 Clean tool thoroughly Check that all grease restrictors are open

34 5 6 7

Check that all grease nipples are present and functionalCheck condition of in-line filters in hook-up manifold Check condition of hoist swivel rings (4 off) replace if necessary Grease tool according to normal procedures Use paper test to check PS 21/30 body v slip fit

PS-21/30

Version 1

165

Annual InspectionVarco Technical Education Center

Inspection Tasks 1 Replace top cover hinge pin seals Remove hydraulic cylinders from body check for: 2Rust Denting Cracks Damage

34 5 6 7

Replace all sealsCheck piston is still fixed on rod Apply new grease to gear Assemble cylinders and check barrel bolts for correct torque Carry out magnetic particle inspection against relevant drawing

PS-21/30

Version 1

166


Part Replacement

PS-21/30

Version 1

167

Centering Device Ram InsertsVarco Technical Education Center

1. 2. 3.

Close the ball valve Disengage the top cover lock and open the top covers Remove the lynch pin clip that locks the ram insert into the universal ram guide

PS-21/30

Version 1

168

Centering Device Ram InsertsVarco Technical Education Center

4.

Replace the ram insert 2 x threaded holes for lifting eyes are provided in each ram insert to ease handling Lock the new ram insert with the lynch pin clip Close and lock the top covers Open ball valve

5. 6. 7.

PS-21/30

Version 1

169

Centering Device Ram GuidesVarco Technical Education Center

1. 2.

Close the ball valve Disengage the top cover lock and open the top covers

PS-21/30

Version 1

170

Centering Device RamVarco Technical Education Center

3.

Remove the ram hinge pin

PS-21/30

Version 1

171

Centering Device RamVarco Technical Education Center

4. 5. 6.

Remove the knuckle pin Replace the ram Re-assemble the pins and the pin retainers lock-wire the bolts on the pin retainers Open the ball valve

7.

PS-21/30

Version 1

172

Fixed GuidesPS 21 without Centring DeviceVarco Technical Education Center

1.

Open the top covers

2. Disconnect the lynch pin from pin on guide half

PS-21/30

Version 1

173

Fixed GuidesPS 21 without Centring DeviceVarco Technical Education Center

3. 4. 5.

Change out ram guide halves Re-assemble lynch pin Close & lock top covers

PS-21/30

Version 1

174


TroubleshootingPS-21/30 Version 1

175

PC-POL RulesVarco Technical Education Center

P C P

Check that Pressure to the hook-up manifold is 2300psi min

Check that all hoses and quickconnects are properly Connected and the ball valve is openCheck that electrical Power is available at the control panel

O

Check for Oil leakage at the manifold block, hook-up kit, quick-connects and hoses

LPS-21/30

Check Lubrication of the PS

Version 1

176

Pipe Slipping through InsertsVarco Technical Education Center

Are teeth on inserts worn?

Yes

Replace Inserts

No

Wrong Insert Carriers?

Yes

Check/Change-Out Insert Carriers

No

Wrong Inserts?

Yes

Check/Change-Out Inserts

No

PS-21/30

Version 1

177

Pipe Slipping through InsertsVarco Technical Education Center

Slips Not Setting Correctly?

Yes

Lack of Grease or Dirt in Slip Cylinder

No

Lack of Slip Down-Force?

Yes

Check Pressure & Accumulator

PS-21/30

Version 1

178

Slips are CockingVarco Technical Education Center

Wrong Insert Carriers

Yes

Check/Change-Out Insert Carriers

No

Wrong Inserts?

Yes

Check/Change-Out Inserts

No

Radial Force On Door Side?

Yes

Rotate PS with centre slip toward deviation Install Centring Device on PS21

No

PS-21/30

Version 1

179

Slips are CockingVarco Technical Education Center

Wrong Ram Inserts In Centering Device?

Yes

Check/Change-Out Ram Inserts

No

Slips Not Setting Properly?

Yes

1. Lack of Grease 2. Slip Hinge Pins not Greased, Broken or Badly Assembled 3. Accumulator Faulty 4. Incorrect Ram Sequencing check pressure differential 5. Dirt in PS Manifold flush or clean 6. Incorrect pressure setting on sequencing valve 1900psi 7. Dirt in slip cylinder inspect and repair as necessary

PS-21/30

Version 1

180

Slips are Not Fully RetractingVarco Technical Education Center

Dirt between body and slips?

Yes

Remove slip and clean slip/body

No

Excessive Friction on Hinge Pins?

Yes

Grease Hinge Pins

NoSlip Cylinder Piston Not Stroking Fully?

Check Torsion Springs on Hinge Pins

Yes

Dirty cylinder Inspect & Repair

No

Piston is Loose Inspect & Repair

PS-21/30

Version 1

181


Incorrect Hydraulic Pressure?

Yes

Check Pressure From Power Supply to Hook-Up Kit Check In-Line Filters

NoCheck Quick-Connects

Lack of Lubrication?

Yes

Grease Slips/Body

No

Ensure Correct Grease Distribution

Check Grease System & Outlets

PS-21/30

Version 1

182


Malfunctioning Directional Valve?

Yes

Dirt in Hydraulic System

Back-Pressure Too High

PS-21/30

Version 1

183

Slips Do Not Move Up or DownVarco Technical Education Center

No/Low Hydraulic Pressure?

Yes

Set Correct Slips-Up Pressure

Back-Pressure Too High

Check Connections

Check Ball Valve

PS-21/30

Version 1

184

Slips Sagging when IsolatedVarco Technical Education Center

Worn Left Hand Cylinder Seals?

Yes

Replace Piston Seals

No

Malfunctioing Pilot Check Valve?

Yes

Check for Dirt in Pilot Check Valve

Defective Valve Inspect & Repair

PS-21/30

Version 1

185

Inappropriate SignalsVarco Technical Education Center

HUK Manifold not Getting Signal From PS?

Yes

1. 2. 3. 4.

NoNo Signal from HUK Manifold to Pressure Switch?

Check Quick-Connects Check Accumulator Check In-Line Filters Check Middle Barrel Port on RH Cylinder 5. Check Piston Seals in RH Cylinder replace if necessary

Yes

1. Dirt in HUK Manifold 2. Incorrect Setting of SV1 & SV2 Should be 1500psi 3. Back-Pressure on SV1 & SV2 Too High

No

Malfunction of Pressure Switches on HUK?

Yes

1. Dirt Inside Pressure Switch 2. Incorrect Setting Pressure Switches 3. Incorrect Wiring of Pressure Switches

PS-21/30

Version 1

186

Slip Travel Too SlowVarco Technical Education Center

Insufficient Hydraulic Pressure?

Yes

No

1. Check for Blocked Filter(s) 2. Check Accumulator 3. Check Operation of Sequencing Valves 4. Dirt in PS Manifold 5. Check Pressure Setting of Sequencing Valve 1900psi 6. Check Pressure to HUK Manifold 2300psi

Insufficient Hydraulic Flow?

Yes

1. Check Quick-Connects 2. Check Ball-Valve in Slips-Set Hose 3. Check Flow in HUK Pressure Line 5gpm Min to 10gpm Max

PS-21/30

Version 1

187

Top Cover Ram MalfunctionVarco Technical Education Center

Piston Not Fully Stroking?

Yes

Check for Dirt In Cylinder

NoKnuckle on Cylinder Rod Not Connected?

Yes

Check Assembly of Knuckle

No

Leak From Top Cover Hinges?

Yes

Disassemble & Check Condition

PS-21/30

Version 1

188

Insert Carriers SlippingVarco Technical Education Center

Insert Carriers Improperly Latched?

Yes

1. Dirt Under latches 2. Lifting Hook Not Seating Properly 3. Dirt on Top of Slip

PS-21/30

Version 1

189

Difficulty Installing SlipsVarco Technical Education Center

Center Slip Mounting Pins Stuck?

Yes

No

1. Check for Dirt in Sliding Hole Inside Centre Slip 2. Check Drain Hole in Sliding Hole 3. Check Greasing of Mounting Pins 4. Check that Pins are Not Bent 5. Check Assembly Procedure 6. Check Function of Ball-Valve in Slips-Set Hose

Handles Preventing Full Retract?

Yes

Check Orientation Of Mounting Pin Handles

PS-21/30

Version 1

190

Insert Carrier AssemblyVarco Technical Education Center

Build-Up of Dirt?

Yes

1. Clean Carriers Outer Contour and Retainer Slot 2. Clean Slip Inner Contour and Retainer

No

Bad Fit Between Carrier & Slip?

Yes

1. Remove Burrs from Both Components 2. Check Condition of Slips Carrier Retainer & Replace if Necessary

No

Malfunction of Quick Release?

Yes

1. Check Function of Latches on Top of Slip 2. Check that Lifting Eye on Top of Carrier Can Move Freely

PS-21/30

Version 1

191

Inserts Cracking or BreakingVarco Technical Education Center

Wrong Inserts?

Yes

Ensure Inserts Are Original Varco Supply

No

Pipe Impact?

Yes

1. Check Sizing of Ram Inserts 2. Check that Bevelled Inserts are Installed in Bottom Row

PS-21/30

Version 1

192

Breaking Lifting EyesVarco Technical Education Center

Have Lifting Eyes Been Overloaded?

Yes

1. Never lift PS with Top Cover LBars 2. Only Use the Dedicated Lifting Sling 3. Replace the Lifting Eyes

No

Have Lifting Eyes Been Side-Loaded?

Yes

1. Only Use the Lifting Eyes For Hoisting Purposes 2. Replace the Lifting Eyes

PS-21/30

Version 1

193

Internal Tubing LeaksVarco Technical Education Center

Is Tubing Moving During Operation?

Yes

1. Slip Cylinders May Not Be Properly Attached 2. The PS Manifold May Not Be Properly Attached to the Body 3. The Top Cover Hinge Blocks May Not be Properly Attached to the PS Body

PS-21/30

Version 1

194


InspectionPS-21/30 Version 1

195

Safety!Varco Technical Education Center

Ensure that all hydraulic lines are disconnected before ANY work is carried out on the PS-21/30

PS-21/30

Version 1

196

Welding!Varco Technical Education Center

NOT

You

MUSTweld on the PS 21/30 body or any of its components

PS-21/30

Version 1

197

Hinge Pin WearVarco Technical Education Center

PS 21New Bore Max New Pin Max Worn Bore Max Total Clearance A 2.380 2.365 2.405 0.050Bore Wear

PS 303.005 2.990 3.030 0.050

PS-21/30

Version 1

198

Bore Wear Paper TestVarco Technical Education Center

Full Contact

Determine bore by making a paper print:1. Connect the PS to the power unit 2. Dress the PS with NON-WORN slips and clean NON-WORN inserts

Top Contact

3. Wrap waterproof paper around the clean insert mark free section of pipe 4. Clamp the slips using 2500psi power down pressure

PS-21/30

Version 1

199

Bore Wear - EvaluationVarco Technical Education Center

Full Insert Contact?

Yes

PS & Slips Are Good

No

Insert Contact on Top?

Yes

Replace Slip & Re-Test

Full Contact?

Yes

Return Slips to Service

NoPS Bowl is Worn Remove PS From Service

PS-21/30

Version 1

200


RepairPS-21/30 Version 1

201

DisassemblyVarco Technical Education Center

Prior to disassembly of the PS, thoroughly clean the unit with a steam-cleaner in order to prevent the disassembled parts from becoming contaminated with dirt, mud etc

PS-21/30

Version 1

202

Disassembling the CylindersVarco Technical Education Center

1.

Disengage the top cover lock and open the top covers

PS-21/30

Version 1

203


2. 3.

Ensure that the Lift Levers are at approx. 45 Disconnect all 3 x hydraulic tubes from the right hand cylinder do not remove this tubing from the manifold block

PS-21/30

Version 1

204


4.

Remove all 4 bolts that connect the cylinder barrel to the cylinder gear box

PS-21/30

Version 1

205


5.

Gently slide the barrel up until the barrel parts from the piston No excessive force should be needed to remove the barrel

Turning the barrel while sliding up should help ease disassembly

PS-21/30

Version 1

206

Disassembling the CylindersBevelledVarco Technical Education Center

6.

Check the configuration of the barrel )RH = pn 20220433 (sq) pn 202204-45 (bev) If the barrel has an internal bevelled shoulder, the cylinder gear box does not have to be removed from the PS body in order to reassemble the barrel later p/n 202203-45 If the barrel has an internal square shoulder, the cylinder must be removed from the PS body in order to reassemble the barrel p/ 202203-33

Square

PS-21/30

Version 1

207

Replacing the PistonVarco Technical Education Center

1.

Check if the existing piston is secured to the piston rod by means of a set screw Loosen this set screw if applicable Unwind the piston from the piston rod Assemble the new piston Secure the piston to the rod by means of the set screw inserting a nylon pellet below the set screw Insert the NPT plug on top of the set screw Check that the NPT plug is below the piston contour

2. 3. 4. 5.

6. 7.

PS-21/30

Version 1

208

Replacing the SealsVarco Technical Education Center

1.

Inspect the seals for any damage and/or scoring

2. Warm the 2 x white outer rings in hydraulic oil (65C)3. Assemble the 2 x half moon rings (delivered together with replacement seals) in the top seal groove Assemble the O-ring and white outer ring the outer ring needs to be stretched gently BY HAND over the taper on the piston and into the bottom seal groove Remove the 2 x half moon rings and assemble the top seal

4.

This sketch is not up-to-date5.

PS-21/30

Version 1

209

Reassembling the BarrelVarco Technical Education Center

1.

Always fit the barrel BY HAND never tap the barrel down with a hammer as this will damage the seals Turning the barrel fitting will help to ease assembly A special piston assembly bushing is required in the case that the barrel has an internal square shoulder Secure the barrel to the cylinder gear box by means of the 4 x bolts assemble and torque the bolts and lockwire

2. 3.

4.

PS-21/30

Version 1

210

Assembling the LeversVarco Technical Education Center

Ensure that the V-mark on the levers is lined up with the V-mark on the cylinder spline shaft

PS-21/30

Version 1

211

Installing the CylindersVarco Technical Education Center

1.

Install the hydraulic cylinders without tightening the bolts

PS-21/30

Version 1

212


2.

Slide the synchronization shaft through both cylinders (new design has only 1 key)

PS-21/30

Version 1

213


3. 4.

Assemble the 4 x bolts and washers in the back Torque to185 ft.lbs (250Nm)

PS-21/30

Version 1

214


After bolts are tight, check alignment of the 2 x cylinders tapping the synchronisation shaft rubber mallet

by with a

The shaft must be tight but not clamped

PS-21/30

Version 1

215

Assembly of Hoisting RingsVarco Technical Education Center

Loads may slip or fall if improper hoist ring assembly and lifting procedures are employed A falling load may cause serious injury or death Ensure that spacers (washers) are NOT used between the flange and mounting surface Always be sure threads on shank and holes are clean, not damaged and fit properly

PS-21/30

Version 1

216

Assembly of Hoisting RingsVarco Technical Education Center

APPLY LOCTITE NO. 243 TO THE THREADS Torque: 5000lbs SWL hoist ring = 100 ft.lbs After installing, always ensure that the bail is free to pivot 180 and swivel 360 180

360

PS-21/30

Version 1

217

Assembly of the Manifold BlockVarco Technical Education Center

1.

Put the manifold in position PS 30 Use liquid gasket PS21 Use an o-ring

2. Torque and lock-wire the securing bolts

PS-21/30

Version 1

218

Assembly of Cover Hinge PinsVarco Technical Education Center

It is of utmost importance that the cover plate hinge pins are properly assembled to ensure proper functioning of the centring device

Clean the pin and hinge boss hole remove any sharp burrs that might seals during assemblyClean the seals

and damage the

PS-21/30

Version 1

219


1. 2.

Apply a grease coating to all pin surfaces Assemble the o-rings, backup rings, lip seals and spacer rings

PS-21/30

Version 1

220


3.

Apply a coating of grease to all hinge boss holes

4. Carefully insert the pin taking care not to damage the seals

PS-21/30

Version 1

221

Assembly of the CD CylinderVarco Technical Education Center

1.

Ensure a 0.125" clearance between the knuckle and the piston rod shoulder

PS-21/30

Version 1

222

power slips -2130 generic1

Documents

slips ps

operation ps

flowcharts ps

day course ps

rotary configuration

lynch pin ps

rotary support table

dedicated lifting eyes