Section 6
MAINTENANCE
27
TABLE 1
INSTALLA TION DATA --- SERIES 32 COUPLINGS
Max. Operating Misalignment
Tightening
Tor q ue
ft./lbs
Coupling
Gap
inches
Parallel
Offset
inches
Angular
inches*
200 wet .010 .010
* Angular misalignment in inches equals maximum A minus
min imu m B a s sh ow n in F ig u r e 6 --- 7 . DO NOT ex ceed v a l-
ues in Table above.
Capscrew
260 dry
6.0
Visually check that the pilots are properly engaged
and tighten all capscrews to the torque s pecifica-
tions show n in Ta ble 1.
FLUID STOP VALVE MAINTENANCE
R e f e r t o Fig u r e 6 --- 1 0 w h e n s e r v ic in g f lu id s t op ( P/ N
016742), and order repair kit number 001684. The
following instructions are in accordance with repair
kit number 001684. For best results, remove t he
fluid stop valve from the compressor and service at
aworkbench.
* Repair Kit P/N 001684
Figure 6 ---10 Fluid Stop Valve (P/N 016742)
1. DO NOT attempt to service valve without first
turning off compressor, disconnecting power
and relieving all pressure in sump.
2. Disassemble the !@4” pilot tube, and remove the
six (6) !@4”---20 capscrews that secure the cylin-
der to the valve body. Carefully slide cylinder off
of piston.
3. Remove the o---ring from piston and discard. Re-
move the quad ring from cylinder and discard.
4. Place new o---ring over piston, applying a light
coating of compressor lubricant to o---ring and
inside wall of cylinder. Position quad ring in cylin-
der flange recess.
5. Carefully slide cylinder over piston and secure to
housing with the six (6) capscrews. Torque to 4
to 5 ft./lbs. (5 to 7 Nm).
6. Reconnect pilot tubing and make sure all j oints
are properly tightened before starting compres-
sor.
PILOT VALVE MAINTENANCE
Refer t o Figure 6 --- 11. Pilot valve (P/ N
250038---668) maintenance is quite minimal but a
periodic cleaning is desirable. The time between
cleanings will vary depending on operating condi-
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
250038---673 and follow the procedure explained
below.
WARNING
!
Turn off all power, relieve line pressure, a nd 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
Prior to performing this, be sure all pressure is re-
moved from the system.
1. Remove the retaining cap and slip the entire so-
lenoid off the solenoid base sub---assembly.
2. Unscrew the solenoid base assembly. Remove
thecoreassembly,corespringandbodygas-
ket.
3. Next, remove the end cap, body gasket, disc
spring, a nd disc holder assembly.
4. All parts are now accessible for cleaning or re-
placement. Replace worn or damaged parts
with repair kit number 250038---673 for best re-
sults.
5. Reassemble in reverse order of disassembly.
COIL REPLACEMENT KIT
1. Remove the retaining cap, nameplate and cover.
2. Slip the yoke containing the coil and sleeves off
the solenoid base sub --- assembly.
3. Reassemble in reverse order of disassembly.
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