Operation and maintenance manual
Parking Brake - Parking Brake and Mounting
Section 170-0010
4
SM 2253 10-03
to mounting spline of slack adjuster (15).
10. With adjusting screw facing towards actuator (13)
slide slack adjuster (15) on power screw shaft (19)
aligning slack adjuster (15) arm with clevis (10).
11. Install snap ring (14) on power screw shaft (19).
12. Remove nuts (11) and washers (12) securing
actuator (13) to cap assembly (22). Remove actuator
(13) from cap assembly (22) to aid in installation.
INSTALLATION
Numbers in parentheses refer to Fig. 1, unless
otherwise specified.
WARNING
To prevent personal injury and property
damage, be sure wheel blocks, blocking
materials and lifting equipment are properly
secured and of adequate capacity to do the job
safely.
1. Assemble bracket assembly (1, Fig. 3) and torque
plate side A (2, Fig. 3) and secure with bolts (4, Fig. 3),
hardened washers (6, Fig. 3) and nuts (7, Fig. 3).
2. Install park brake assembly (8, Fig. 3) and push park
brake assembly (8, Fig. 3) hard against torque plate
side A (2, Fig. 3). Slide torque plate side B (3, Fig. 3)
into the slots of park brake assembly (8, Fig. 3).
3. Secure torque plate side B (3, Fig. 3) by installing
bolts (4, Fig. 3), clamp plate (5, Fig. 3), hardened
washers (6, Fig. 3) and nuts (7, Fig. 3).
4. Install a feeler gauge of 0.635 mm (0.025") between
park brake assembly (8, Fig. 3) and torque plate side B
(3, Fig. 3) to obtain clearance as shown in Fig. 3.
5. Tighten all four bolts to 680 Nm (490 lbf ft) and
recheck clearance is within tolerance 0.51 - 0.76 mm
(0.020 - 0.030").
6. Attach suitable lifting device and position bracket
assembly (1) and calliper head assembly (2) over brake
disc. Secure bracket assembly (1) to mounting bracket
on the frame with bolts (4), washers (5) and nuts (6).
Tighten nuts (6) to a torque of 745 Nm (550 lbf ft).
SM - 3070
Fig. 3 - Assembling Parking Brake Mounting
1 - Bracket Assembly
2 - Torque Plate Side A
3 - Torque Plate Side B
4 - Bolt
5 - Clamp Plate
6 - Hardened Washer
7 - Nut
8 - Park Brake Assembly
7
6
5
3
4
8
4
2
6
7
1