Inlet Control Valve; Motor Shaft Seal Replacement - Sullair ES-6 5H Operator's Manual And Spare Parts List

Section 6
MAINTENANCE
3. Reassemble in reverse order of disassembly.
Before doing compressor maintenance, discon-
nect compressor from power source and lock out
power source. Isolate compressor from line pres-
sure by closing recommended discharge shut- -
off valve and releasing all internal pressure from
compressor.

INLET CONTROL VALVE

Refer t o F igur e 6 --
require replacement are the piston seal on the in-
take valve piston and gasket. Follow this procedure
for inlet control maintenance.
1. Remove the inlet filter assembly.
2. Disconnect tubing from intake control housing at
90_ elbow.
3. Remove the two (2) 3/8" ferry head capscrews
securing the intake control housing to the inlet
plate.
4. Remove intake control housing assembly and
gasket.
5. Remove retaining ring, cap and intake check
spring from intake housing bore.
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 seal
from intake piston.
Figure 6 ---7 Inlet Control Valve
* Repair Kit P/N 02250045---287
22
!
WARNING
7. T he only par ts whic h nor mally
9. Clean intake housing gasket surface and internal
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 re-
tainer 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 18 to 24 in.--lbs.
(2.0 to 2.7Nm).
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 housing
assembly ferry head capscrews and install.
Torque to 30 ft.--lbs. (40.7Nm).
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.