rotary manual screw komp

8/18/2019 Rotary Manual screw komp

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Rotary Screw

Compressor Operating

Instructions

1-800-551-2406www.eaglecompressor.com

Model #:___________ Serial #:___________

CAREFULLY READ THIS

INSTRUCTION MANUALBEFORE ATTEMPTING

TO OPERATE THIS

AIR COMPRESSOR

PUMP & COMPRESSOR LTD.

COMPRESSOR LLC.


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TABLE OF CONTENTSSafety Precautions ..................................................... 3

Cautions ............................................................................................ 3

Air Receiver ...................................................................................... 3

Safety Valve ...................................................................................... 3

Compressor Main Components .................................. 4

Intake Air Filter .................................................................................. 4

Separator Cartridge .......................................................................... 4

Oil Suction Check Valve .................................................................... 4

Minimum Pressure Valve .................................................................. 4

Oil Filter ............................................................................................. 4

Air-Oil System & Separator ............................................................... 5Oil Thermovalve ................................................................................ 5

Oil / Air Cooling System .................................................................... 5

Capacity Control Systems ................................................................. 5

Installation & Operating Instructions ........................ 6

Pneumatic Pilot Unloader ............................................................... 15

Location & Mounting ......................................................................... 6

Piping Connection ............................................................................. 7

Compressor Maintenance ......................................... 15

Wiring ................................................................................................ 7

Troubleshooting ........................................................ 20

Maintenance Schedule ............................................. 19

Prior to Operation .............................................................................. 8

Start-Up / Operation .......................................................................... 8

Compressor Rotation ........................................................................ 8

Break-In Procedure ........................................................................... 9

Compressor Lubrication .................................................................... 9

Recommended Oil ............................................................................ 9

Fluid Level ......................................................................................... 9

Checking Oil ...................................................................................... 9

Changing Oil ................................................................................... 10

Oil Filter ............................................................................................11

Air / Oil Separator Cartridge ............................................................ 12

Air / Oil Cooling System .................................................................. 14

Air Filter ........................................................................................... 14

Checking Belt Tension..................................................................... 17

Air Compressor Operation .............................................................. 18

Standard warranty .................................................... 27


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3

Safety Precautions

SAFETY PRECAUTIONS

Cautions

The air compressor, motor and some piping/tubing will get hot while in

operation. Never touch the discharge tubing, motor or compressor pump

while in operation. The compressor operates automatically while the

power is connected and turned on.

Compressed air from the unit may contain hazardous fumes. Air pro-

duced by this compressor is not suitable for breathing purposes. Always

use a respirator when spraying paint or chemicals, or when sandblasting.

Always wear safety glasses or goggles when using compressed air.

It is not practical or possible to warn you about all the hazards associated

with operating or maintaining this equipment. You must use your own

good judgment.

Air Receiver

Over pressurizing the air receiver could cause personal injury or material

damage. To protect from over pressurizing, a factory pre-set safety valve

is installed.

NEVER WELD, DRILL OR

CHANGE THE AIR

RECEIVER IN ANY WAY.

Safety Valve

This valve is factory installed to prevent over pressurizing of the air

receiver. It is factory set at a specic limit for your particular model, and

should never be tampered with.

NOTE: Adjustment by user will automatically void the warranty.

DO NOT REMOVE, MAKE

ADJUSTMENTS TO OR

SUBSTITUTE THIS VALVE


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4

Compressor Main Components

COMPRESSOR MAIN COMPONENTS

Intake Air Filter

The air lter is integrated in a housing and mounted directly on the air

compressor. The lter serves to protect the compressor unit from impuri-ties found in the environment. Controlling pollutants at the air inlet will

deliver longer service life and trouble free operation.

Separator Cartridge

The air/oil separator element is used to recover the nely dispersed

residual oil in the form of drops after preseparation. The compressed

air is technically oil free but performance of the lter is also affected by

temperature, operating pressure, ow and type of oil being used. Theseparator cartridge is screwed into the non drive-end housing.

After the separation process the oil is returned to the compression stage

via the oil scavenge orice. This orice should be inspected whenever an

air/oil separator is scheduled for replacement. Make sure that the scav-

enge orice is unrestricted. Please refer to the maintenance section.

Oil Suction Check ValveThis valve prevents the back ow of oil from the air end to the separator

cartridge when the unit is switched off which causes a pressure differ-

ence in the system. The valve is located within the screw compressor

and is maintenance-free.

Minimum Pressure Valve

The minimum pressure valve, maintains a minimum pressure inside

the body of the compressor. The pressure ranges between 45-60 PSIdepending on the type of compressor.This pressure is necessary for

good oil separation and lubrication. At the same time, the valve acts as

a check valve, which prevents the backow of compressed air from the

system or from the pressure tank into the screw compressor.

Oil Filter

The oil lter prevents solid particles from damaging the rotors and bear -

ings. The NK-series use a replaceable spin-on oil lter and has an oilbypass valve, which is opened in the case of cold, very viscous oil or if

the lter is very contaminated. This prevents the compressor from being

damaged by an insufcient supply of oil. The SCI-series use a metallic

mesh lter mounted internally that can be easily inspected and cleaned.

This lter may occasionally need to be replaced depending on the de-

mands on the lter.


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5

Compressor Main Components

Air-Oil System & Separator For visual monitoring, the residual oil is channeled through an oil inspect-

ing glass from the air-oil separator unit.

The replacement intervals of the air/oil seperator are about 3000 to 6000operating hours. The service life depends primarily on the degree of pol-

lution of the intake air and proper handling of the maintenance intervals

of the oil lter and the air lter.

Oil ThermovalveWhen a cold unit is started, the thermal bypass valve controls the oil ow.

The thermovalve on the SCI7 and SCI8 and NK100 units are located

internally, on the NK60 unit it is external. The oil cooler is bypassed until

the oil reaches a specied temperature. When the oil temperature startsrising above the set value of the oil thermovalve, the oil is gradually

chanelled through the oil cooler. Once the oil temperature has reached

it’s set value, the oil thermovalve is closed and the cooler is fully used.

The oil thermovalve provides for constant temperature and viscosity of

the lubricating oil. A further function is that it prevents condensate from

building up inside the oil tank, which may affect the lubricating character-

istics of the oil.

Oil / Air Cooling SystemThe after cooler used with the screw compressor is a combi cooler used

to cool the compressor oil and the compressed air. The oil and air in the

aftercooler is air cooled by means of a fan attached to the shaft of the

motor. An air-cooled aftercooler is provided to reduce the temperature of

the compressed air to approximately 15°C of the ambient temperature.

Capacity Control Systems

The intake valve acts as a check valve, which will prevent oil and com-

pressed air from discharging through the inlet lter when the unit is shut

off. In order to keep the system pressurized, air is circulated inside the

compressor until the compressor is brought on load again.

SCI7 & SCI8:

A pneumatic control valve controls the air intake. The pneumatic control

valve opens and closes the intake proportionally and continuously de-pending on the compressed air consumption. During no-demand the in-

take valve is completely closed to stop air from entering the compressor

unit. At this time a small amount of air is still being allowed to ow into

the compressor through a by-pass valve. This valve only allows enough

air to enter the compressor in order to keep the oil circuit pressurized. Air

and Oil from the compressor will not be released through the intake of

the air compressor due to inlet check valve.

NK60 and NK100:


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Installation & Operating Instructions

INSTALLATION & OPERATING INSTRUCTIONS

InstallationProper care, maintenance and lubrication ensures longevity. The com-

pressor should always be level for proper lubrication. The compressor

has an air/oil combi cooler for proper cooling. Keep the combi cooler and

other parts that collect dust clean. Do not place rags or other materials

on the compressor, as this obstructs cooling and can be a re hazard.

Location & MountingMount the compressor on a concrete pad or solid oor, making certain

that the air receiver feet are level and that no stress is placed on the

legs when mounting nuts, if used, are tightened, shim feet if necessary.Severe vibrations will result when feet are uneven and drawn tightly to

the oor, which can lead to welds cracking or fatigue failure of the air

receiver.

ALMOST ALL WELD CRACKS OR

FATIGUE FAILURES ARE CAUSED

BY IMPROPER INSTALLATION ANDARE NOT COVERED BY WARRANTY

Locate the compressor in a clean, well lighted and well ventilated area.

Ambient temperature should not exceed 37o C or 104o F. (Failure to meet

this may result in a high air temperature shutdown.)

Clean, fresh air, in sufcient quantity is required for proper compressor

operation. Do not locate the unit where the hot exhaust from other com-pressors or heat generating equipment may be drawn into the unit. There

should be 1.5 ft. (0.5m) between the air intake and the wall.

IF THE ROOM IS NOT PROPERLY VEN-

TILATED THE COMPRESSOR OPERAT-

ING TEMPERATURES WILL INCREASE

AND CAUSE THE HIGH TEMPERATURE

SWITCH TO SHUT THE UNIT OFF.


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THIS COMPRESSOR SHOULD NOT

BE INSTALLED IN AN AREA THAT

MAY BE EXPOSED TO A TOXIC,

VOLATILE OR CORROSIVE ATMO-SPHERE, NOR SHOULD TOXIC, VOLA-

TILE OR CORROSIVE AGENTS BE

STORED NEAR THE COMPRESSOR.

Piping Connection

Never join pipes or ttings by soldering. Never use plastic, PVC, ABSpipe or rubber.

Wiring

REGULATIONS REQUIRE THAT ALL

WIRING BE DONE BY A LICENSED

ELECTRICIAN. FAILURE TO DO SOCOULD VOID YOUR WARRANTY.

Before installation, the electrical supply should be checked for adequate

wire size. Do not connect the compressor unit to a voltage other than that

specied on the motor nameplate.

Any warranty claims for electrical components

can only be considered when submitted with

proof of proper electrical installation.

NOTE:


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Prior to Operation

BEFORE OPERATING THE AIR COMPRESSOR, PLEASE CHECK

THE FOLLOWING CAREFULLY.

1. Check to see that nuts and bolts are all snug.2. Check if the quantity and quality of oil is correct.

3. If the intake lter is dirty, it should be replaced or cleaned.

Start-Up / Operation

CHECKLIST FOR START-UP:

• Remove all loose pieces and tools around the compressor

Installation.

• Check oil level in the oil reservoir.

• Rotate the compressor manually in the direction of the rotation.

• Check all pressure connections for tightness.

• Check to make sure all pressure relief valves are in place.

• Check fan and fan mounting tightness.

• Check the belt tension and alignment.

• Check to make sure drive guards are in place.

• Check air lter element to see that it is securely mounted.

• Start the compressor and observe for at least 15 minutes for

any hot spots along the compressor housing and for excessive

vibration and unusual noises.

• Check the control setting during start-up. Control settings have

been adjusted and checked at the factory, however, they should

be checked.

Compressor Rotation

Compressor rotation must be checked prior to start-up or after changes

have been made on the electrical feed line. (This must be done with

the belts removed.) A wrong rotation for more than 2 seconds results in

extreme damage to the screw compressor and warranty coverage will be

voided.

If anything unusual happens STOP the compressor immediately

The compressor rotation is

counter clockwisewhen looking at the compressor shaft end.


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Break-In Procedure

1. After 24 hours of operation check V-belt for proper tension.

Check compressor pulley and motor sheave are aligned and

fastened securely.

2. Nuts and bolts may loosen, re-tighten when necessary.

Compressor Lubrication

Eagle Synthetic Compressor Oil ................ #EAGLE SYN68-GAL (4 L)

USE ONLY RECOMMENDED OIL !

Recommended Oil

Eagle compressor oil is a special synthetic oil formulated with additives

to help increase compressor life and reduce oil consumption, for use at

ambient temperatures of 0° to 30°C (32°F - 86°F).

Any ISO68 synthetic compressor oil.

Other approved Oils:

Fluid Level

The compressor is lled at the factory with the correct amount of oil. The

uid level is monitored while in operation by observing the sight glass on

the SCI-series. Refer to Figure 1. Do not overll as the excess uid will

carry over into the plant air distribution system.

BARE SCREW COMPRESSORS ARE

SHIPPED DRY FROM THE FACTORY.DO NOT ATTEMPT TO OPERATE THE

COMPRESSOR BEFORE FILLING IT

WITH THE PROPER TYPE OF OIL.

THIS COULD CAUSE EXTREME DAM-

AGE TO THE COMPRESSOR.

“Warranty will be voided”Checking the Oil

The Eagle screw compressors SCI-series are equipped with two oil level

sight glasses. They are located under the oil ll cap. The upper sight

glass indicates an overll condition. Oil should never be seen in the

upper sight glass. Oil must always be visible in the lower sight glass,

whether the compressor is operating or not. (Refer to gure 1.)


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Figure 1.

The NK series compressors are not equipped with sight glasses and

must be stopped in order to check the oil levels. (Refer to gure 2.)

Figure 2.

HOT OIL UNDER PRESSURE CANCAUSE SEVERE INJURY. DO NOT

REMOVE THE OIL FILL CAP OR

ATTEMPT TO ADD OIL TO THE

COMPRESSOR WHILE IT IS IN OP-

ERATION. MAKE SURE THE UNIT

IS FULLY STOPPED AND DEPRES-

SURIZED BEFORE ADDING OIL.

Changing Oil

We recommend the use of Eagle’s ISO 68 synthetic compressor oil. The

oil should be changed between 3,000 and 6,000 hours depending upon

application and environmental conditions.

Make sure the compressor is

depressurized befor checking oil.


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Draining the oil should be done while the oil is still

warm. This will carry away more impurities and

prevent solids from settling.

NOTE:

• Shut down the compressor and lock out. If the compressor isexcessively hot, let it cool until the oil can be handled safely.

• Pull the pressure relief valve to test for pressure.

• Slowly unscrew the oil ll cap.

• Carefully remove the oil drain plug. One is located below the oil

cooler at the end of the drain tube. The second one is located

at the end of the drain tube at the bottom of the air end.

• After complete drainage, reinstall the drain plugs and rell thecompressor.

• Run for two (2) minutes, then recheck oil level.

• Record the oil change in your maintenance log.

• Dispose of the used oil in accordance with local waste disposal

regulations and in an environmentally responsible manner.

Oil Filter To replace or clean the oil flter element (SCI models)

The lter should be cleaned after the rst 500 hours of operation at the

same time as the rst oil change. Thereafter the lter should be cleaned

every 2000 hours of operation and replaced at every oil change.

• Shut down the compressor and lock out.

• If the compressor is excessively hot, let it cool until the oil ltercartridge can be handled safely.


• Slowly unscrew the oil cap.

• If you are only cleaning the lter element, drain the oil from the

compressor only, there is no need to remove the oil from the oil

cooler. Only remove the oil from the oil cooler when planning

an oil change. Remove the drain plug located at the end of theair-end drain tube.

• Remove the four Allen-head cap screws that are holding the

round oil lter housing in place.


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The oil lter cartridge should be replaced after the rst 500 hours of

operation at the same time as the rst oil change. Thereafter the lter

should be replaced every 2000 hours of operation.

To replace or clean the oil flter element (NK models)

• Shut down the compressor and lock out.

• If the compressor is excessively hot, let it cool until the oil lter

cartridge can be handled safely.• Pull the pressure relief valve to test for pressure.

• Unscrew the oil lter cartridge “counterclockwise to remove”.

Dispose of the used lter cartridge in accordance with local

waste disposal regulations and in an environmentally respon-

sible manner.

• Lubricate the gasket/seal on the new lter cartridge.

• Before mounting the new lter cartridge, hold it upright and llit with the same type of oil as you are using in the compressor

(Partial ll for NK100 - The oil lter for this model is mounted on

an angle).

• Screw on the new oil lter cartridge by hand ”clockwise to in-

stall” Make sure it is snug.

• Restart the compressor and check for leaks after it has run for

one hour.

Air / Oil Separator Cartridge

Both the SCI and NK series compressors use a disposable type, spin-

on air/oil separator cartridge. It should be replaced at least once a year

or at 6000 hours of operation under ideal conditions, whichever comes

rst. However, under severe operating conditions such as dusty environ-

• To remove the lter, the same cap screws can be utilized as

jacking bolts to assist in pulling out the lter housing. Insert two

of the cap crews into the threaded holes provided on the hous-

ing. Screw in the two cap screws equally until the cover has

backed out from the housing. The assembly can then be pulledout by hand.

• Once removed, the lter element can be cleaned in a light sol-

vent or replaced as required. Also inspect the O-ring on the oil

lter. Replace O-ring if necessary.

• Install the lter using a new gasket and tighten the cap screws.

DO NOT OVERTIGHTEN.

• Fill the compressor with new oil to the proper level.


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13


ments, high humidity, or under sustained high operating temperature

conditions, it should be replaced more frequently, as needed.

• Shut down the compressor and lock out.• If the compressor is excessively hot, let it cool until the oil lter

cartridge can be handled safely.


• Unscrew the cartridge by turning it counterclockwise.

• Screw in the new air/oil separator cartridge and snugly tighten

by hand.

• Re-start the compressor and check for leaks.

• The SCI models and the NK60 have a scavenge line orice

sight glass. Oil return movement should be observed through

the sight glass when the compressor is operating and fully

loaded. If no movement or minimal movement is observed,

the orice could be restricted or plugged. To clean the orice,

remove the sight glass to gain access for cleaning. (Refer to

Figure 4.)

• The NK100 and NK160 have no external sight glass. The

scavenge orice is located inside a tting on the oil return line

external to the air-end. On these models the oil return line must

be removed and the scavenge orice inspected visually while

the compressor is stopped.


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Figure 4.

Air / Oil Cooling SystemFor the operational safety of the screw compressor unit, clean the cooler

regularly. Keep the cooling ns of the cooler clean. This is a prerequisite

for achieving maximum compressor efciency. Adequate cooling means

low oil, and low air temperatures and gives a longer service life.

Routinely blow the dirt off the cooler ns. We recommend using com-pressed air, soap and water jet, or a cleansing agent, depending on the

type of build-up plugging the cooler.

Under ideal ambient conditions, the air/oil cooler should be inspected

every week. In extremely dusty environments, the cooler may have to be

cleaned every day.

Air Filter Under ideal operating conditions, the air inlet lter should be replaced ev-

ery 2,000 hours. However, when operating in dusty environments, more

frequent replacement is necessary.

Eagle recommends replacing the lter elements with OEM replacements.

NK-60 SCI


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Compressor Maintenance

ANY CONTAMINANTS ENTERING A

SCREW COMPRESSOR ARE IMMEDI-

ATELY MIXED WITH THE OIL AT THE

COMPRESSION POINT, AND INJECTEDINTO THE OIL FILTER AND THE AIR/OIL

SEPARATOR. CONTROLLING POLLUT-

ANTS AT THE AIR INLET WILL DELIVER

A LONG COMPONENT SERVICE LIFE

AND TROUBLE-FREE OPERATION.

COMPRESSOR MAINTENANCE

NEVER ASSUME THE COMPRESSOR

IS READY FOR MAINTENANCE OR

SERVICE BECAUSE IT IS STOPPED.

THE COMPRESSOR COULD START

AUTOMATICALLY AT ANY TIME. THEFOLLOWING PROCEDURE SHOULD BE

FOLLOWED FOR YOUR SAFETY WHEN

PREPARING FOR MAINTENANCE.

Before doing any maintenance or adjustments to your air compressor,

the following safety precautions should be taken:

• TURN OFF AND LOCK OUT ELECTRIC POWER.

• DRAIN AIR RECEIVER , COMPRESSOR, AND AIR LINES OF

AIR PRESSURE.

Adjusting Pneumatic Pilot Unloader

1

2

3

4

1 Differential Locknut2 Differential Screw

3 Pressure Screw Locknut

4 Pressure Screw


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Please refer to diagram on Page 15:

• Turn the compressor off.

• Loosen the differential locknut (1). Then turn the differential

screw (2) clockwise until you feel the pilot seat come to rest onthe internal ball.

• Gently turn the differential screw a little more in the clockwise di-

rection after coming in contact with the ball (this seats the valve)

and then secure the differential locknut (1).

• Loosen the pressure screw locknut (3) and turn the pressure

screw (4) counterclockwise to remove it from the adjustment.

• Cycle the compressor to the desired minimum setting (load

pressure) and turn off the compressor. Loosen the differentiallocknut (1) and turn the differential screw ¼ turn in the counter-

clockwise direction. Snug differential locknut (1).

• Begin to screw the pressure screw (4) back into place slowly.

When air extinguishes out the top of the valve, you have estab-

lished your bottom pressure setting. Secure the locknut (3).

• Cycle the compressor up and down making a note of your mini-

mum pressure setting. If it is too high, turn the pressure screw

(4) counterclockwise. If the minimum setting is too low, turn the

pressure screw (4) clockwise.

• Repeat until the desired setting is achieved. LOW END PRES-

SURE MUST BE SET FIRST!

• Then, cycle the compressor and make note of the maximum

pressure setting. If it is too high, turn the differential screw (2)

counterclockwise. If the maximum setting is too low, turn the

differential screw clockwise*.• Repeat until desired setting is achieved. Make sure all locknuts

are secure and operate compressor as normal.

* When turning the differential screw clockwise, make sure not to

overturn it. This could cause the pilot seat to rest on the ball and

stop the valve’s ability to unload.

If the setting you are attempting to achieve is vastly different from

the original factory setting, the valve may require an internal com-

ponents change.


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17


Checking Belt Tension

Adjust belt(s) so when pressure is applied at the center, there is approxi-

mately 1/2” slack (see gure 5).

Figure 5.

If the belt is installed too tight, the motor might be overloaded. This willcause the motor to overheat. If the belt is installed too loosely, it will slip

and excessive wear and vibration will occur.

• Disconnect power supply and lock out.

• Remove belt guard.

• Loosen motor bolts and slide motor toward compressor head

just enough to allow old belt to be removed.

• Install proper replacement belt.

• Slide motor away from compressor head to provide recom-

mended tension as shown in gure 5.

• Align belt using a straight edge ruler against pulley’s edge.

• Fasten motor bolts.

• Ensure motor and compressor pulley’s are secure. Re-check

alignment.

• Re-install belt guard and reconnect power supply.

• Belt tension should be checked after 20 hours of operation.

Check tension monthly thereafter.

HOW TO INSTALL A NEW BELT IF REQUIRED


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19

Maintenance Schedule

Maintenance

Intervals

Action

Required

Before start-up /Daily / 24 Hours

Maximum

• Check for proper oil level

• Visually inspect for leaks

• Listen for unusual noises

• Monitor all gauges for normal operation

Weekly • Inspect air inlet lter for cleanliness;

replace if necessary.• Check for proper belt tension

150 Hours • Check load and unload function.

• Check pressure safety valve operation:

Make sure that it opens freely by manu-

ally lifting the valve stem ring.

• Clean unit to maintain

appearance.

Every 1000 Hours • Re-adjust belts for proper tension

• Clean outside of air/oil cooler

• Check bolts screws & ttings

Every

2000

Hours

• Inspect and clean oil lter element; re-

place if necessary (SCI SERIES)• Replace oil ller cartridge (NK SERIES)

• Replace air lter element

• Inspect and insure proper control devices

operation

Once a year or ev-

ery 6000 hours• Replace oil

• Replace oil lter element or cartridge

• Replace air/oil separator cartridge.

• Replace air inlet lter element.

• Thoroughly clean outside of air cooler

• Remove and visually inspect V-belts;

replace when necessary.

• Thoroughly clean entire unit,

Maintenance Schedule


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20

Troubleshooting

Symptom Possible cause Action - Repair

Unit turning

backwards

Phase reversal Contact electrician to correct

the problem

Refer to motor manufacturer

wiring diagram

Unit will not

startNo current

Fuses blown or

breaker disenaged.

Motor overload

protection tripped

Loose electrical

wires, fuse holders

or connections

Power not turned on. Check

power supply at source.

Replace damaged fuse.

Reset breaker.

Manually check for free rota-

tion of drive components

If unit rotates freely contact

electrician to correct the over-

loading condition

Contact electrician to correct

problem.

Re-tighten and check wiring.

Unit turns

slowly

when

starting

Unit is

pressured loaded

Low starting

voltage

Low ambient

temperature

Wrong oil

Check compressor-unloading

system by pulling open the

pressure relief valve. If loaded

check for solenoid or pneumat-

ic unloader malfunction.

Contact electrician to check

power supply.Main motor starter contacts

malfunction.

Room temperature below

50ºF/10ºC causing oil circula-

tion problems or freeze ups.

Drain oil and ll with recom-

mended oil.

Unsched-

uled

shutdown

High air/oil tem-

perature shut-

down

Air/oil cooler dirty: Refer to

section called “Oil Cooler/ After

Cooler” in the maintenance

schedule.

Check oil level

Troubleshooting


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21

Troubleshooting


Unsched-

uled

shutdown

Continued

Motor overload

protection tripped

Power failure

Manually check for free rota-

tion of components.

If unit rotates freely contact

electrician to correct the over-

loading condition.

Check the power supply

Plant air

pressure

“Too Low”

or

Low air

delivery

Excessive air

system demand

Excessive leaksin the air system

Air pressure

gauge faulty

Air inlet lter

plugged

Air pressure

switch - Defectiveor not set properly

Pneumatic pres-

sure regulator not

set properly

(If so equipped)

Inlet valve not

opening fully

Minimum

pressure valve

set too high

Compressor too small.

Reevaluate requirement.

Check all air system compo-nents for malfunction.

Fix all air leaks

Replace air pressure gauge.

Refer to “Air Inlet Filter” in the

maintenance schedule.

Readjust the air pressure

switch to desired settings.Replace if defective.

Readjust inlet valve pressure

regulator to desired modulation

range. Dismantle and clean

valve components if not re-

sponding. Replace if defective.

Consult dealer service repre-

sentative.


sentative.

Plant air

pressure

“Too High”

Air pressure

gauge faulty

Air pressureswitch - Defective

or not set properly

Pneumatic pres-

sure regulator not

set properly

(If so equipped)


Readjust the air pressureswitch to desired settings.

Replace if defective.

Readjust inlet valve pressure

regulator to desired modulation





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Troubleshooting


Plant air

pressure

“Too High”Continued

Inlet valve not

closing


sentative.

Pressure

safety valve

blows

Air pressure gauge

faulty

Air pressure

switch - Defective

or not set properly

Pneumatic pres-sure regulator not

set properly

(If so equipped)

Inlet valve not

closing

Air/Oil separator

plugged

Minimum pressure

valve malfunction


Readjust the air pressure

switch to desired settings.

Replace if defective.

Readjust inlet valve pressureregulator to desired modulation





sentative.

Replace air/oil separator car-

tridge. Refer to section called Air/Oil separator cartridge in

the maintenance schedule.


sentative.

Discharge

air/oil

temperature

“Too High”

Air/Oil tempera-

ture gauge faulty

Inadequate air

circulation

Air/Oil cooler dirty

Ambient air

temperature high

Replace temperature gauge.

Cross-room ventilation is

important. Check for restric-

tion to free air circulation at the

cooler. Air must enter and exit

the compressor room freely.

Clean air/oil cooler. Refer to

section called “Oil/Air Cooling

System” in the maintenance

schedule.

Room temperature must be

kept below 105ºF/40ºC for

proper operation. Relocate

compressor if required.


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23

Troubleshooting


Discharge

air/oil

temperature

“Too High”

Continued

Low oil level

Clogged oil lter

Wrong grade or

type of oil

Oil has varnished

Oil thermal con-

trol valve mal-

function

Check oil level. Refer to sec-

tion called “Checking and

Adding Oil” in the maintenance

schedule

Replace oil lter

Drain oil and replace. Refer

to section called “Oil Require-

ment” in the maintenance

schedule.

Refer to section called “Oil/Air

Cooling System” in the mainte-nance schedule.


sentative.

Excessive

oil

consump-

tion

Oil level too high

Plugged

scavenge orice

Compressorvolume is being

exceeded

Compressor is

overheating

Faulty air/oil

separator

Bring oil level down to recom-

mended level. Refer to section

called “Checking and Add-ing Oil” in the maintenance

schedule.

Remove and clean oil separa-

tor scavenge orice. Refer to

section called “Air/Oil Sepera-

tor Cartridge” in the mainte-

nance schedule.

Air/oil separator pressure andsystem pressure is falling be-

low 70 PSIG when compressor

is operating at full load.

Compressor is being operated

at or around its high tempera-

ture shutdown point. Refer to


System” in the maintenanceschedule.

Replace air/oil separator car-

tridge. Refer to section called

Air/Oil separator cartridge in

the maintenance schedule.


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24

Troubleshooting


Excessive

oil

consump-

tionContinued

Wrong oil being

used

Drain oil and replace with

recommended oil. Refer to “Oil

Requirements” in the mainte-

nance schedule.

“Frequent”

air/oil sepa-

rator failure

Wrong air inlet

lter being used

Faulty oil lter

Wrong oil being

used

Compressor is

overheating

Refer to section called “Air

Inlet Filter” in maintenance

schedule.

Replace oil lter cartridge


recommended oil. Refer to “OilRequirements” in the mainte-

nance schedule.






schedule.

Oil varnish-

ing or oil

breakdown

Wrong air inlet

lter being used

Faulty oil lter

Wrong oil being

used

Compressor is

overheating

Compressor cycle

is too light

Refer to section called “Air

Inlet Filter” in maintenance

schedule.

Replace oil lter cartridge


recommended oil. Refer to “Oil

Requirements” in the mainte-nance schedule.






schedule.

Compressor not operating

long enough to reach normal

operating temperature.

Condensation build up in oil

reservoir.


25/28

25

Troubleshooting


Oil varnish-

ing or oil

breakdown

Continued

Condensate con-

tamination in oil

reservoir

After the compressor has been

stopped overnight; open the

oil drain slightly and check for

water contamination in the oil

stream.

This condition can occur when:

The compressor is not allowed

to fully warm up.

The compressor is operatingunder severe high humidity

conditions.

The air delivery system is de-

signed such that condensate

is allowed to ow back into the

compressor.

Rainwater is allowed to enter

the air inlet stream.

Compres-

sor not

operating

at proper

pressure

Pilot valve out of

adjustment

Re-adjust pilot valve as per

instructions in this manual.


26/28

26

Compressor Maintenance Log

DATE Type of maintenance

or repairs

DATE Type of maintenance or

repairs

COMPRESSOR MAINTENANCE LOG


27/28

27

Standard Warranty

STANDARD WARRANTY

EAGLE PUMP & COMPRESSOR LTD.

SCREW COMPRESSOR PRODUCTS

Seller warrants products of its own manufacture against defects in workmanship and mate-

rials under normal use and service as follows:

COMPRESSORS: Twenty Four (24) months from date of start-up or

Twenty Seven (27) months from date of shipment

from factory or whichever comes rst.

PARTS: Ninety (90) days from date of sale

Eagle warrants repaired or replaced parts of its own manufacture against defects in materi-als and workmanship under normal use and service for ninety (90) days or the remainder of

the warranty on the product being repaired, whichever is longer.

With respect to products not manufactured by Eagle, Eagle will, if practical, pass along the

warranty of the original manufacturer.

Notice of the alleged defect must be given to Seller in writing with all identifying details in-

cluding serial number, model number, type of equipment and date of purchase, within thirty

(30) days of the discovery of same during the warranty period.

Eagle’s sole obligation on this warranty shall be, at its option, to repair, replace or refundthe purchase price of any product or part thereof, which proves to be defective, F.O.B.

Eagle shop.

If requested by Eagle, such product or part thereof must be promptly returned to Eagle,

freight prepaid for inspection.

This warranty shall not apply and Eagle shall not be responsible nor liable for:

a) Consequential, collateral or special losses or damages;

b) Equipment conditions caused by normal wear and tear, abnormal conditions of use, accident, neglect or misuse of equipment, improper storage or

damages resulting during shipment;

c) Deviation from operating instructions, specication or other special terms

of sale;

d) Labor charges, loss or damage resulting from improper operation,

maintenance or repairs made by person(s) other than Eagle or Eagle

authorized service representative;

e) Improper application of product.

In no event shall Eagle be liable for any claims, whether arising from breach of contract orwarranty of claims of negligence or negligent manufacture, in excess of purchase price.

THIS WARRANTY IS THE SOLE WARRANTY OF EAGLE AND ANY OTHER

WARRANTIES, EXPRESSED, IMPLIED IN LAW OR IMPLIED IN FACT, IN-

CLUDING ANY WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

PARTICULAR USE, ARE HEREBY SPECIFICALLY EXCLUDED.


28/28

1-800-551-2406www.eaglecompressor.com

PUMP & COMPRESSOR LTD.COMPRESSOR LLC.

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