Separator Element Replacement; Minimum Pressure/Check Valve Maintenance; Thermostat Actuator Maintenance - Sullair ES-6 SERIES User Manual

ES-6 USER MANUAL
5. Reinstall the cap. Hand-tighten using a 4" max-
imum length, 1/4" diameter pin in the radially
drilled hole.
Figure 6-3 Separator Element (P/N 250025-264)
1. Fluid Fill Plug 3. Cap
2. O-ring (I) 4. Separator Element (I)
(I) Replacement Element Kit P/N 250028-033
MINIMUM PRESSURE/CHECK VALVE
MAINTENANCE
Refer to Figure 6-4. Minimum pressure/check valve
maintenance is minimal. The only parts which
normally require replacement are the o-ring seal
around the piston and the valve seat on the check
valve. To replace any of the two parts, follow the
procedure explained below.
WARNING
Before doing compressor mainte-
nance, disconnect compressor from
power source and lock out power
source. Isolate compressor from line
pressure by closing recommended
discharge shut-off valve and releas-
ing all internal pressure from com-
pressor.
WARNING
Assure that line pressure gauge on
compressor indicates "ZERO" pres-
sure before any work is done. Failure
to comply can cause injury.
1. Unscrew the minimum pressure valve from the
drive housing.
2. Remove all parts.
3. Clean and inspect all parts.
4. Remove the screw holding the check valve
seat. Replace valve seat. Reinstall securing
with Loctite® #222.
5. Install new o-ring. Before reinstallation, lubri-
cate with Parker Super "O" ring seal or an
equivalent grease.
6. Reinstall the whole valve assembly. Tighten
and secure.
THERMOSTAT ACTUATOR MAINTE-
NANCE
Refer to Figure 6-5. The only part which would ever
5. Sight
need replacement is the thermostat valve actuator.
Glass
For replacement, follow the procedure explained
below.
Figure 6-4 Minimum Pressure/Check Valve (P/N
1. Valve
Spring
2. O-ring (I)
(I) Repair Kit P/N 250030-226
Section 6 - MAINTENANCE
WARNING
Before doing compressor mainte-
nance, disconnect compressor from
power source and lock out power
source. Isolate compressor from line
pressure by closing recommended
discharge shut-off valve and releas-
ing all internal pressure from com-
pressor.
604131)
3. Valve 5. Screw
Stem
4. Washer 6. Valve
Seat (I)
7. Check
Spring (I)
8. Cap
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