TM 5-4310-277-14
"off' is controlled by the spring force. A small ad-
justment can be made on the spring force by com-
pressing the spring more or less with an adjusting
screw provided on the pilot valve.
b. Removal and Disassembly, Head Unloaders.
(1) Stop the air compressor, and release all air
from the compressor by opening the draincock.
(2) Remove the sensing and head unloader tubes
from the pilot valve and head unloaders.
(3) Remove the compressor air cleaner, head
unloader assemblies and disassemble the head,
unloaders as follows:
(2).
(b) Remove the nuts (3) and washers (4).
(c ) Disengage the spring (5) and remove claw
(6), piston (7) and rod (8) from manifold (9).
(2), and O-ring (3).
(e) Remove the nuts (4) and washers (5) and
disengage spring (6).
(f) Remove claw (7) and remove piston (8)
and rod (9) from manifold (10).
exploded view.
