TM 5-4310-277-14
(1) Stop the air compressor, and release all air
loaded. While running loaded, hold hand near air
from the compressor by opening the draincock.
cleaner. Blow back from the air cleaner indicates
(2) Remove all attaching hardware and disas-
actuating fork is not allowing the compressor intake
valves to seat properly.
semble the pilot valve as follows:
e. Removal and Disassembly, Pilot Valve.
(a) Remove the differential lock nut (1 fig.
(1) Stop the air compressor, and release all air
4-20.1) securing spring (3), stem (4), piston (5) from
from the compressor by opening the draincock.
main body (2).
(2) Remove the sensing tube from the bottom of
(b) Remove pressure adjustment lock nut
the pilot valve, and disconnect the head unloader
(6), pressure adjusting nut (7), cap (9), and O-ring
and throttle control tubes from the valve. Remove
(8).
the pilot valve and mounting bracket as shown in
f. Cleaning and Inspection, Pilot Valve.
collar (2); unscrew adjusting screw (3) and remove
spring (4) and stem (5).
Drycleaning solvent, P-D-680, used to
(b) Remove stud (6) from body (9) and
clean parts is potentially dangerous to
remove sleeve (7) and ball (8).
personnel and property. Avoid re-
peated and prolonged skin contact.
e.1. Removal and Disassembly, Pilot Valve,
Do not use near open flame or exces-
(Model HGR5-8M-6).
sive heat. Flash point of solvent is
100oF. (38oC.) - 138oF. (59oC.).
Change 1
