TM 9-2320-279-34-2
Brake System Maintenance Instructions (Cent)
11-12. TRAILER BRAKE HAND CONTROL VALVE REPAIR (M983) (CONT).
(7) Scribe matchmarks on outlet housing (15) and inlet
housing (16). Remove six screws (17).
(8) Separate outlet housing (15) from inlet housing (16) and
remove preformed packing (18).
(9) Remove exhaust breather (19).
(lo) Remove plug (20)
(11,
(12)
(13)
(14)
(15)
(16)
(17)
(18)
Tap outlet housing (15) to jar loose
balance piston (21 ). Remove balance
piston and spring (22) from outlet
housing.
Remove U-cup (23), thrust ring (24), and
two spacers (25) from balance
piston (21 ).
Remove cartridge assembly (26) from inlet
housing (16).
Remove preformed packing (27).
Scribe matchmarks on inlet housing (16),
mounting plate (28), and cam
housing (4). Remove four screws (29)
and sealing washers (30) to separate
inlet housing, mounting plate, and cam
housing.
Remove brass fitting (31).
Grasp tip of cam follower (32) and pull
out of cam housing (4).
Push out roller pin (33) and remove
roller (34).
11-38
