TM 5-4310-362-14
PISTONS, CRANKSHAFT AND CENTRIFUGAL UNLOADER MODEL 20-904 (Cont)
LOCATION/ITEM
ACTION
REMARKS
15. Cover cup assembly (28)
Install with screws (29).
Use the correct number of gaskets de-
and gaskets (25, 26 and
termined in Step 2.
27)
16. Valve (30)
Screw into elbow (32) until
end is visible through opening.
17. Locknut (31)
Screw on elbow (32).
18. Elbow (32)
Screw into end cover (28).
Do not screw in too far or unloader
plunger will permanently keep valve
open.
19. Locknut (31)
Tighten
20. Pistons (33)
Lubricate with OE 10.
21. Cylinder (34) and
Install with screws (36).
gasket (35)
22. Crankcase
Fill with oil, OE 10 below
32F (0C) OE 30 above
32F (0C).
23. Flywheel
Install
24. Compressor
a. Turn over a few times by
hand to make sure there is
no binding.
b. If new pistons, rings, cyl-
This insures that new parts seat. Head
inders or bearings have been
is kept off so compressor is run in with-
installed, run compressor in
out load and parts seat gradually.
without the head installed
for several hours.
Change 1 8-23
