JLG 534D-10 - Manual (Page 98)

Axles, Wheels and Tires
5.14 534D-9, 534D-10 & 544D
After the machine has been towed to a secure location,
reactivate the parking brake.
1. Block all four wheels.
2. Hold the base of the reverse relief valve using a
32mm (1-1/4”) wrench. Use a 22mm (7/8”) wrench to
turn the second section of the reverse relief valve
two complete turns in. Repeat the procedure on the
forward relief valve.
3. Using a torque wrench, alternately unscrew the
brake release bolts (1) outward in 1/2 turn
increments until the torque drops off sharply.
4. Again, alternately unscrew the bolts outward until
you feel the bolts flange begin to contact against the
special screw.
5. Screw the bolts inward (clockwise) 1/4 turn.
6. The parking brake should now be reactivated and
the front wheels locked.
7. Remove the blocks from the four tires.
8. Verify that the parking brake works.
Note: If the parking brake does not work, check all
activation operations step by step.
WARNING
ALL WHEELS must be blocked to prevent machine
from moving or rolling away.
MX1040
1
1
1
MX1050
2
3
4