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TM 5-4210-220-12
4-22. AIR SYSTEM - Continued
4-22 11 Air Compressor Governor - Continued
REPAIR
NOTE
Governor must be removed from truck for repair . See REMOVAL preceding.
(1)
Unscrew and remove cover (1) with O-ring (2).
(2)
Remove the retaining ring (3).
(3)
Pull the adjusting screw (9) and spring assembly out of the body (18).
(4)
The spring assembly need not be disassembled unless the valve spring is broken or has lost tension. To
dismantle, the following instructions apply, otherwise proceed to step 7.
(5)
Remove the locknut (4) and the upper spring seat (5).
(6)
Remove spring (6), spring seat (7), spring guide (8), and second spring seat (7) from the adjusting screw
(9).
(7)
Gently tap open end of valve body on flat surface to remove exhaust stem (10), exhaust stem spring (11),
washer (12) and piston assembly (15).
(8)
Remove and discard the two O-rings (14) from the piston (15).
4-378
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