6: Maintenance E900H User Manual
02250203-986 R03
46 Subject to EAR, ECCN EAR99 and related export control restrictions.
6.9.4 Main fluid filter servicing
Refer to Figure 6-3. The main fluid filters are located
schematically in the coolant line between the receiver
t
ank 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 of
f 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.
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
Refer to Figure 6-4. Air filter maintenance should be per-
formed when indicated on the restriction indicator. The air
filte
rs are equipped with a primary element and second-
ary element.
The secondary element must be replaced after every
thir
d 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.
Figure 6-3: Main fluid filter assembly and thermostat
1. Capscrew 5. Thermostat element
2. Washer 6. O-ring
3. Upper housing 7. Lower housing
4. O-ring 8. Filter elements
Figure 6-4: Air filter assembly
1. Primary element assembly
2. Rear cover
3. Housing
4. Evacuator
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