Main Fluid Filter Servicing; Air Filter Maintenance - Sullair E900H User Manual

6: Maintenance
6.9.4

Main fluid filter servicing

1. Capscrew
2. Washer
3. Upper housing
4. O-ring
Figure 6-3: Main fluid filter assembly and thermostat
Refer to Figure 6-3. The main fluid filters are located
schematically in the coolant line between the receiver
tank and the compressor unit. The main filter elements
are replaceable. For installation of the filter elements, fol-
low the procedure explained below:
1. The compressor must be shut off and sys-
tem pressure must be relieved.
2. Position a suitable container beneath the
elements to catch fluid drainage.
3. Remove elements using a suitable tool.
4. Rotate each element counterclockwise to
remove.
46
5. Thermostat element
6. O-ring
7. Lower housing
8. Filter elements
02250203-986 R03
Subject to EAR, ECCN EAR99 and related export control restrictions.
5. Remove element and discard. These ele-
ments are not cleanable.
6. Make certain that the mounting surfaces and
filter heads are clean.
7. Apply a light film of clean fluid to each ele-
ment gasket surface.
8. Center the new elements on filter housing
heads and tighten until the filter gaskets
make contact with the filter housing. After
gaskets make contact, tighten ½ to ⅔ of a
turn.
9. Run compressor and check for leaks.
6.9.5

Air filter maintenance

1. Primary element assembly
2. Rear cover
3. Housing
4. Evacuator
Figure 6-4: Air filter assembly
Refer to Figure 6-4. Air filter maintenance should be per-
formed when indicated on the restriction indicator. The air
filters are equipped with a primary element and second-
ary element.
The secondary element must be replaced after every
third primary element change. Do not reconnect the sec-
ondary element once it is removed.
6.9.5.1 Air filter element removal
1. Clean the exterior of the air filter housing.
2. Remove the rear cap by releasing retaining
clamps.
E900H User Manual