TM 5-4310-379-14
5-28. Compressor Unloader Assembly (Cont).
b. Repair. (figure 5-37)
NOTE
Unloader assembly removed for repair per para. (1) and (2) above. There are four unloader
assemblies, repair of each is the same.
(1)
Remove six screws (1) and washers (2) securing unloader diaphragm cover (3) to unloader body (4).
(2)
Remove unloader diaphragm cover (3) and unloader diaphragm (5) from unloader body (4).
(3)
Remove unloader piston cap (6) from unloader body (4).
(4)
Remove unloader piston (7) from unloader body (4).
(5)
Remove pin unloader (8) from spacer valve retainer (9).
(6)
Remove spacer valve retainer (9) from spacer valve kickoff (10).
(7)
Remove platform unloader (11) from spacer valve kickoff (10).
(8)
Remove pin valve kickoff (12) and spring valve kickoff pin (13) from spacer valve kickoff (1*0).
(9)
Remove stud (14) from spacer valve kickoff (10).
(10)
Remove valve intake (15) spring (16) and bumper intake valve (17) from spacer valve kickoff (10).
(11)
Clean unloader assembly using TSP ultrasonic cleaner w/heater following cleaning instructions in Chapter
3. Clean components soft goods in accordance with Chapter 3.
(12)
Inspect unloader assembly components for cracks or other signs of wear.
(13)
Replace any component that is worn or otherwise damaged.
(14)
Install bumper intake valve (17), spring (16), and valve intake (15) and secure with stud (14).
(15)
Install pin valve kickoff (12) and spring valve kickoff pin (13) in spacer valve kickoff (10).
(16)
Install platform unloader (11) and spacer valve retainer (9) on spacer valve kickoff (10).
(17)
Install pin unloader (8) in spacer valve retainer (9).
(18)
Install unloader piston (7) in unloader body (4).
(19)
Install unloader piston cap (6) in unloader body (4).
(20)
Install unloader diaphragm cover (3) with unloader diaphragm (5) on unloader body (4) and secure with six
screws (1) and washers (2).
5-122
