Sullair ES-6 SERIES User Manual page 49

Section 6 - MAINTENANCE
Figure 6-7 Inlet Control Valve
1. Nylok Screw 4. Intake Valve Head
2. Piston Seal (I) 5. Spring Retainer
3. Intake Piston 6. Check Spring
(I) Repair Kit P/N 02250045-287
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.
Remove intake valve rod, check spring, spring
retainer and intake valve head.
8. Remove intake piston from intake/inlet control
housing. Remove and discard old piston seal
from intake piston.
9. Clean intake housing gasket surface and inter-
nal piston bore.
43
7. Intake Valve Rod 10. Spring Washers
8. Gasket (I) 11. Intake Check
9. Inlet Valve Housing 12. Cap
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 con-
trol housing. Install assembled intake piston
into intake control bore and onto intake valve
rod.
13. Install washers. Apply screw lock adhesive
provided 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
control valve assembly.
16. Apply screw lock adhesive to inlet control
housing assembly ferry head capscrews and
install. Torque to 30 ft.-lbs. (40.7Nm).
ES-6 USER MANUAL
13. Retaining Ring
Spring