7: Maintenance 1600H T4F Perkins User Manual
02250248-733 R03
64 Subject to EAR, ECCN EAR99 and related export control restrictions.
7.5 Engine maintenance
Check Engine Operator’s Manual for required engine
service.
7.6 Parts replacement and
adjustment procedures
7.6.1 Compressor fluid change procedure
Warm-up the compressor for 5 to 10 minutes to warm the
fluid. Shut the compressor off and relieve all internal
pressure before proceeding. Drain the fluid by opening
the valves that are bulkhead mounted to the frame (see
ID drawing under Section 2.12 on page 36 for location of
drain port). Change the compressor fluid and replace the
fluid filter element. For element replacement see proce-
dure for servicing the fluid filter in this section. Fill the
receiver tank with fluid according to Section 7.6.2: Main
fluid filter servicing.
7.6.2 Main fluid filter servicing
Refer to Figure 7-1. The main fluid filter is located sche-
matically in the coolant line between the receiver tank
and the compressor unit. The main filter element is
replaceable. For installation of the filter element, follow
the procedure explained below.
1. The compressor must be shut off and sys-
tem pressure must be relieved.
2. Drain by removing drain plug at bottom of
bowl and catching drainage in a container.
3. Rotate bowl counterclockwise and remove.
4. Remove element and O-ring from housing
and discard (this element is not cleanable).
5. Make sure mounting surface of filter head is
clean.
6. Apply a light film of compressor oil to O-ring
and place it in its proper position.
7. Place new, clean element in bowl, over cen-
ter-perforated tub.
Figure 7-1: Main fluid filter assembly
1. Fluid filter bypass 4. Element
2. Filter head 5. Bowl
3. Bowl seal (O-ring) 6. Fluid stop valve
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