Section 6
MAINTENANCE
22
Figure 6 ---7 Inlet Control Valve
* Repair Kit P/N 02250045---287
INTAKE V ALVE
ROD
CHECK
SPRING
SPRING
RETAINER
GASKET*
INTAKE V ALVE
HEAD
INLET VALVE
HOUSING
INTAKE
PISTON
PISTON
SEAL*
SPRING
WASHERS
NYLOK
SCREW
INTAKE CHECK
SPRING
CAP
RETAINING
RING
6. Remove socket head capscrew, washers, and
check spring from intake valve rod.
7. Remove intake valve from valve housing. Re-
move intake valve rod, check spring, spring re-
tainer and intake valve head.
8. Remove intake piston from intake/inlet control
housing. Remove and discard old piston s eal
from intake piston.
9. Clean intake housing gasket surface a nd inter-
nal piston bore.
10. Lubricate internal piston bore using lubricant
supplied with kit.
11. Install new piston seal onto piston.
12. Reinstall intake valve rod, check spring, spring
retainer and intake valve head into intake control
housing. Install assembled intake piston into in-
take control bore and onto intake valve rod.
13. Install washers. Apply screw lock adhesive pro-
vided in kit to socket head capscrew. Replace
socket head capscrew into the valve rod and
torque socket head capscrew to 2.0 to 2.7 Nm.
14. Install intake check spring, cap and retaining
ring.
15. Replace gasket and reinstall the whole inlet con-
trol valve assembly.
16. Apply screw lock adhesive to inlet control hous-
ing assembly ferry head capscrews and install.
Torque to 40.7 Nm.
17. Reconnect tubing to inlet control valve housing
at 90_ elbow.
18. Reinstall air inlet filter assembly.
MOTOR SHAFT SEAL REPLACEMENT
Replacement of motor shaft seal requires that the
compressor be separated from the drive housing.
This operation requires qualified personnel.
Detailed instructions and a list of needed tooling
are included in each motor shaft seal replacement
kit no. 250028---035.
6.7 TROUBLESHOOTING
The information contained in the Troubleshooting
chart is based upon both the actual applied situa-
tions and extensive testing at the factory. I t contains
symptoms and usual causes for the described
problems. However DO NOT assume that these
are the only problems that may occur. All available
data concerning the trouble should be systemati-
cally analyzed before undertaking any repair or
component replacement procedures.
A detailed visual inspection is worth performing for
almost any problems which may prevent unneces-
sary damage to the compressor. Always remember
to:
a. Check for loose wiring.
b. Check for damaged piping.
c. Check for parts damaged by heat or an electri-
cal short circuit, usually apparent by discolora-
tion or a burnt odor.
Should your problem persist after making the rec-
ommended check, consult your nearest Sullair
representative or the Sullair Corporation factory.
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