JLG G9-43A (9151-4003) Operator Manual - Manual (Page 52)

16.1
1. Loosen the nuts (15) of the screws (14) for the
manual release of the braking units. Draw the
nuts back about 8mm (5/16 inch).
2. Turn the screws (14) until they are fastened on
the disk push device (11).
3. Using a wrench, alternately turn the screws
(14) one fourth turn at a time, to compress
the Belleville washers (6) and release the
braking disks.
4. Remove the screws (14) complete with nuts
(15) and seals (16). Substitute seals, lubricate
screws (14) using silicone-based grease and
fit the units inside the arm.
5. Adjust the screws (14) so that they protrude
30 ±1 mm (1-3/16 inch) from the arm.
6. Lock into position by tightening the nuts (15).
CAUTION! Lock the nuts (15) holding the screws
(14) into position. Check the protrusion of the
screw (14) once again.
WARNING !
The front axle service brakes will not operate when the park
brakes are manually disengaged. The rear brakes may only
provide half of the machine’s normal braking capability. Always
reset the brake release screws before allowing machine back
in to regular service.
Figure 16-1
AXLE MANUAL RELEASE (steps 1-3)
Block wheels before performing this procedure.
ADJUSTMENTS AFTER MANUAL RELEASE
(steps 4-6)
MANUAL RELEASE OF BRAKE SYSTEM