JLG 24RS Service Manual - Manual (Page 65)

SECTION 3 - CHASSIS & TURNTABLE
3121287 – JLG Lift – 3-27
NOTE: Refer to the illustration below for installing o-rings (8D),
(8F) and backup rings (8E), (8H).
6. Lightly grease cylinder walls of the brake housing (6)
and install the brake piston (8A) into the brake housing
(6). If necessary, place T-134711 on top of the brake and
lightly tap until the brake piston (8A) contacts the brake
disk stack.
7. Insert 8 Springs (8L) into the brake piston (8A) spring
holes.
8. Install the pressure plate (8M) into the brake housing (6)
bore and onto the springs (8L).
9. Insert and tighten the 0.250-20 UNC capscrews through
the pressure plate (8M) and into the brake piston (8A) to
compress the springs. Tighten the capscrews incremen-
tally to evenly compress the Springs (8L).
SAFETY GLASSES MUST BE WORN DURING THESE NEXT STEPS.
10. Using retaining ring pliers, install the large retaining ring
(8N) into the groove in the brake housing (6) making
sure that it is seated properly.
NOTE: Use caution when installing the retaining ring (8N) into the
brake housing (6). It may cause injury if it slips out of
retaining ring pliers.
11. Remove the capscrews from the brake piston (8A) incre-
mentally to release the tension of the springs slowly.
Discard the capscrews.
12. The Unit should undergo a brake test .
13. Grease and install the o-ring (26) into the motor (31)
pilot.
14. Install the motor (31) into the brake housing (6). Ensure
the motor valve mounting face is aligned with the radial
brake release port in the housing (1G).
15. Install the bolts (29) into the brake housing (6) through
the lifting lugs (28) and motor (31) flange. Torque the
bolts 80-100 ft-lb (108.5-135.5 Nm).
NOTE: Verify the o-rings are located in between the motor and
valve.
16. Install the o-rings (99) into the counterbore on the
motor valve face.
6 Brake Housing
26 O-ring
28 Lift Lug 29 Bolts
31 Motor
Figure 3-19. Swing Motor Assembly