10-4. BRAKE CONTROL VALVE REPAIR (CONT)
Install filter (44), washer (43),
preformed packing (42), seat (41),
poppet (40), and spring (39).
Install preformed packing (38), and
adjusting screw (37). Tighten screw
to 15 - 20 lb-in. (1.69 - 2.26 N·m).
Install nut (36) and tighten to 15 -
20 lb-ft (20.34 - 27.12 N·m).
Install preformed packings (34 and
35) on insert (33). Use a wooden
dowel to push insert into brake
Install spool (32) into insert (33).
Insert the short end of spool first.
Install ball (31). Ensure that ball
rests on insert (33).
Apply grease on end of spring (29) to hold stop (30) in place. Install stop and spring.
Install preformed packing (28) and plug (27). Tighten plug to 40 - 50 lb-ft (54.23 - 67.79 N·m).
Ensure that ball is on seat before proceeding. Failure to do so could cause part damage.
(m) Apply grease to hold ball (26) and seat (25) to spring (24). Install ball, seat, and spring.
· The maximum accumulator pressure is adjusted by turning plug. The high pressure
limit is increased by turning plug into valve. The low pressure limit is decreased by
turning plug out from valve.
· Ensure that plug is installed by turning plug same number of times as recorded
Install preformed packing (23) and plug (22).