Operation and maintenance manual

Section 165-0015
7
SM 2167 Rev 1 10-03
10. Coat threads of guide pins (29) with Loctite 262 and
install in piston pressure plate (30).
11. Place piston pressure plate (30) in brake housing
(31), with pins (29) facing upwards.
12. Install reaction disc (27) over pressure plate (30) in
brake housing (31) as shown in Fig. 18.
SM - 3105
Fig. 18 - Installing Reaction Disc
13. Next install friction disc (26) on top of reaction disc
(27). Thereafter, alternately install reaction disc (27)
and friction disc (26) until the proper number of friction
discs have been installed (six in front axle brake
assemblies, four in centre and rear axle brake
assemblies). Note: It is important to keep teeth
aligned.
14. Install 'O' ring (25) in housing (31) and retractor
springs (28) over guide pins (29).
SM - 3106
Fig. 19 - Discs Installed
15. Place brake outer cover (24) on housing (31) and
secure with capscrews (22) and washers (23). Coat
threads of capscrews with Loctite 262.
16. In a crossing pattern run down capscrews (22) and
torque to 300 - 350 lbf ft (410 - 450 Nm) as shown in
Fig. 20.
17. Using suitable lifting equipment, flip over brake
assembly and install plugs and fittings as noted during
Disassembly.
18. Install wear indicator cap (7) and tighten to 20 - 25
lbf ft (27 - 34 Nm).
19. Install bleeder screw (14) and tighten to 10 - 12 lbf
ft (14 - 16 Nm).
20. Install puller screw plugs (12) and tighten to 20 - 25
lbf ft (27 - 34 Nm).
21. Install new seals (3 & 5) in nuts (2 & 4) and
lubricate seals. Assemble lubricated slack adjuster
screws (6) and jam nuts (4).
22. Install assembled slack adjusters in brake
assembly as shown in Fig. 21.
SM - 3107
Fig. 20 - Tightening Capscrews
SM - 3108
Fig. 21 - Installing Slack Adjusters
Brake Assembly - Oil Cooled Disc Brakes