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Section 6

MAINTENANCE

30

NOT

tighten either coupling until the entire joint

has been assembled.

2. Tighten the nuts to the torque valve shown in Ta-

ble 2.

RECOMMENDED ASSEMBLY TOR--

QUE MUST BE MAINTAINED

. Re---tightening

of the coupler will be necessary if leakage oc-

curs.

SPECIAL NOTES

1. Assembly of the gaskets can be made easier by

dipping the gaskets in water or the oil to be

sealed.

DO NOT USE THE RUBBER LUBRI-

CANTS

.

2. Flexible joints are not intended to support end

loads caused by internal pressure or other

forces causing pipe separation.

MINIMUM PRESSURE/CHECK VALVE MAINTE-

NANCE

Refer t o Figure 

6 --- 11

. Minimum pressure/ check

valve (P/N 241581) maintenance is quite minimal.

The only part which normally requires replacement

is the o---ring on the piston. To replace this ring, or-

der seal repair kit no. 250020---344 and follow the

procedure explained below.

WARNING

!

Before performing maintenance on the valve, be

sure that all pressure has been relieved in the

compressor sump, and all downstream pressure

has been vented to the atmosphere. Also be sure

that the components of the compressor are cool

to the touch.

1. Unscrew the minimum pressure/check valve (P/

N 241581) from the receiver cover.

2. Remove the hexagonal retaining cap from the

main body.

3. Remove the flat washer and heavy spring from

the main body.

4. Tap the piston assembly (with a screwdriver)

from the bottom of the main body and remove.

The o---ring will now be seen easily.

5. Remove the seal ring and discard.

6. Clean piston assembly and valve thoroughly.

7. Replace seal ring and coat the piston and seal

with Parker Super “O” Ring Seal or an equivalent

quality grease.

WARNING

!

Extreme caution should be used when removing

the cap from the body because there is spring

tension on the cap.

8. Reset piston assembly into the main body and

reposition spring and flat washer.

9. Replace retaining cap.

10. Reattach valve to receiver cover and reconnect

all piping.

SOLENOI D VA LVE M A I NTENA NCE

Refer t o Figure 

6 --- 12

. Solenoid va lve (P/ N

250017---993) maintenance is quite minimal but a

periodic cleaning is desirable. The time between

cleanings will vary depending on operating condi-

Figure 6---11 Minimum Pressure / Check Valve

(P/N 241581)

* Repair Kit P/N 250026---758

tions. In general, if the voltage to the coils is correct,

sluggish valve operation or excessive leakage will

indicate that cleaning is required. If parts replace-

ment is required, order repair kit number

250018---970 or number 250018---971 and follow

the procedure explained below:

WARNING

!

Turn off all power, relieve line pressure, and dis-

connect coil lead wires to the valve before making

repairs.

It is not necessary to remove the valve from the pipe

line for repairs.

DISASSEMBLY AND REASSEMBLY

1. Remove the retaining cap and slip the entire so-

lenoid off the solenoid base subassembly.

2. Unscrew the solenoid base assembly. Remove

the core assembly, core spring and body gas-

ket.

3. Next, remove the end cap, body gasket, disc

spring, and disc holder assembly.

4. All parts are now accessible for cleaning or re-

placement. Replace worn or damaged parts

with repair kit number 250018---970 for best re-

sults.

Summary of Contents for 10B 25HP

Page 1: ...10B Open 25 30 40HP OPERATOR S MANUAL Part Number 02250049 581 eSullair Corporation AIR COMPRESSOR INDUSTRIAL STANDARD AND 24KT...

Page 2: ...NOTE For Additional Information on 24KT Units See Inside Back Cover...

Page 3: ...t Sullair s corporate headquarters in Michigan City Indiana Instruction includes discussion of the function and installation of Sullair service parts troubleshooting of the most common problems and ac...

Page 4: ...NOTES...

Page 5: ...NG AND LUBRICATION SYSTEM FUNCTIONAL DESCRIPTION 9 2 5 COMPRESSOR DISCHARGE SYSTEM FUNCTIONAL DESCRIPTION 9 2 6 CONTROL SYSTEM FUNCTIONAL DESCRIPTION 11 2 7 AIR INLET SYSTEM FUNCTIONAL DESCRIPTION 11...

Page 6: ...ARTS REPLACEMENT AND ADJUSTMENT PROCEDURES 23 FLUID FILTER ELEMENT REPLACEMENT 24 AIR FILTER MAINTENANCE 24 SEPARATOR REPLACMENT 25 INLET VALVE MAINTENANCE 25 CONTROL SYSTEM ADJUSTMENT 26 BLOWDOWN VAL...

Page 7: ...tle valve either at the compressor or at any other point along the air line when an air hose exceeding 2 13mm inside diameter is to be connected to the shut off throttle valve to reduce pressure in c...

Page 8: ...oved C Wear snug fitting clothing and confine long hair when working around this compressor especially when exposed to hot or moving parts D Keep access doors if any closed except when making repairs...

Page 9: ...ctors 1 9 LIFTING A If the compressor is provided with a lifting bail then lift by the bail provided If no bail is provided then lift by sling Compressors to be air lifted by helicopter must not be su...

Page 10: ...enter it to perform service adjustments inform other per sonnel before doing so or else secure and tag the access door in the open position to avoid the possi bility of others closing and possibly lat...

Page 11: ...cludes compressor electric motor starter compressor inlet system compressor discharge system compressor lubrication and cooling system ca pacity control system and instrumentation Op tional accessorie...

Page 12: ...or to directly drive the other which is an idler After the air fluid mixture is discharged from the compressor unit the fluid is separated from the air At this time the air flows through an aftercoole...

Page 13: ...Section 2 DESCRIPTION 7 Figure 2 3 Compressor Discharge Cooling and Lubrication System Water Cooled...

Page 14: ...a of the sump to an area of lower pressure in the com pressor unit On air cooled models the fluid flows from the bot tom of the receiver sump to the thermal valve The thermal valve has a nominal tempe...

Page 15: ...ion of the compressor in an unloaded condition A pressure relief valve located on the wet side of the separator is set to open if the sump pressure exceeds 200 PSIG 1379kPa A temperature switch will s...

Page 16: ...he inlet valve The ori fice also bleeds any accumulated moisture from the control lines UNLOAD IN EXCESS OF 125 PSIG 862kPa LINE PRESSURE When no air is being used the service line pressure rises to t...

Page 17: ...nstrumentation for the25 30 and 40HP air compressors consists of a panel group which continually monitors the operating condition of the compressor The panel group has the following gauges a sump pres...

Page 18: ...IPTION 12 when the element should be changed S When the compressor is tank mounted on either a 120 or a 200 gallon auxiliary air receiver an addi tional pressure gauge is supplied to monitor tank and...

Page 19: ...27 004 40HP Air cooled 251334 004 40HP Water cooled 251328 004 24KT 25HP Air cooled 251335 003 25HP Water cooled 251329 003 30HP Air cooled 251336 003 30HP Water cooled 251330 003 40HP Air cooled 2513...

Page 20: ...able Speed 3000RPM Starter 380V Magnetic Full Voltage Shaft Diameter 1 8 41 3mm LUBRICATION GUIDE STANDARD COM PRESSORS Sullair standard compressors are filled with SRF 1 4000 fluid as factory fill WA...

Page 21: ...ed with your compressor The user will re ceive an analysis report with recommendations APPLICATION GUIDE Sullair encourages the user to participate in a fluid analysis program with the fluid suppliers...

Page 22: ...16 NOTES...

Page 23: ...e this heat for space heating providing no additional pressure drop is created across the fan Consult a Sullair office for assistance in utilizing this heat DO NOT install a water cooled or an air coo...

Page 24: ...Section 4 INSTALLATION 18 Figure 4 1 Piping and Instruments...

Page 25: ...with OSHA National Electrical Code and any other applicable local electrical code concerning isola tion switches fused disconnects etc Sullair pro vides a wiring diagram for use by the installer An e...

Page 26: ...20 NOTES...

Page 27: ...ent change is required SEPARATOR MAINTENANCE GAUGE Indicates when separator element change is re quired AIR FILTER MAINTENANCE INDICATOR Shows red when air filter element servicing is re quired This i...

Page 28: ...the water cooled only cooler to keep the compressor running at a normal operating temperature of 170_F 77_C 5 3 INITIAL START UP PROCEDURE The following procedure should be used to make the initial s...

Page 29: ...OURS OF OPERATION After the initial 50 hours of operation a few mainte nance requirements are needed to rid the system of any foreign materials Perform the following maintenance operations to prevent...

Page 30: ...ELEMENT INSPECTION 1 Place a bright light inside the element to inspect for damage or leak holes Concentrated light will shine through the element and disclose any holes 2 Inspect all gaskets and gask...

Page 31: ...aintenance may require the re placement of the piston spring piston o ring seal ring and check valve spring Use repair kit number 250019 451 and follow the procedure below for proper installation 1 Re...

Page 32: ...re reaches 125 lbs the inlet valve will be closed to its maximum position The inlet vacuum at this point will be around 25 in Hg The machine should unload at this point 5 Open the service valve so the...

Page 33: ...parate the upper hous ing from the lower housing 3 Remove element 4 Remove and replace the element seal in the up per housing 5 Remove and replace the o ring between the upper and lower housings 6 Rep...

Page 34: ...hten 14 Tighten the adjusting screw until tension is real ized 15 At this time refer to Control System Adjustment procedure and readjust FLEXIBLE COUPLING MAINTENANCE Refer to Figure 6 10 Flexible cou...

Page 35: ...62 38 1mm 29 5mm 41 2mm TABLE 2 ASSEMBLY TORQUE Size Standard 1 2 90 to 110 in lbs 38 1mm 10 14 to 12 4Nm I Tighten as shown in chart or a minimum of 16 1 5mm clearance between coupling lugs whichever...

Page 36: ...e seal ring and discard 6 Clean piston assembly and valve thoroughly 7 Replace seal ring and coat the piston and seal with Parker Super O Ring Seal or anequivalent quality grease WARNING Extreme cauti...

Page 37: ...ontains symptoms and usual causes for the described problems However DO NOT as sume that these are the only problems that may oc cur All available data concerning the trouble should be systematically...

Page 38: ...ust to 135 PSIG 931kPa Defective solenoid valve solenoid valve should cause control lever to move to unload stop when the pressure switch contacts open Repair if defective Defective blowdown valve blo...

Page 39: ...s are not damaged Replace if necessary Defective Solenoid Valve Repair kit available Defective Blowdown Valve Check that sump pressure is exhausted to the atmosphere when the pressure switch contacts...

Page 40: ...Section 6 MAINTENANCE 34 MODEL NO SERIAL NO 6 8 MAINTENANCE RECORD DATE HOURMETER MAINTENANCE PERFORMED WORK PERFORMED BY AUTHORIZED BY...

Page 41: ...Section 6 MAINTENANCE 35 MODEL NO SERIAL NO 6 8 MAINTENANCE RECORD DATE HOURMETER MAINTENANCE PERFORMED WORK PERFORMED BY AUTHORIZED BY...

Page 42: ...36 NOTES...

Page 43: ...n fluid filter 250025 521 250025 525 std 24KT 2 repair kit for separator element 25 30HP 250034 111 250034 112 std 1 250034 114 24KT 1 repair kit for separator element 40HP 250034 113 250034 114 std 2...

Page 44: ...NOTES...

Page 45: ......

Page 46: ...pecifications Subject To Change Without Prior Notice WORLDWIDE SALES AND SERVICE SULLAIR CORPORATION 3700 E Michigan Blvd Michigan City Indiana 46360 9990 Telephone 219 879 5451 A SUBSIDIARY OF SUNDST...

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