JLG G6-42A Operator Manual - Manual (Page 48)

TO RELEASE PARKING BRAKE
CARRARO AXLE
1. If possible position unit on level ground, lower attachment to approximately
.3m (one foot) from ground, move forward/reverse lever to “Neutral”, apply
parking brake and stop engine.
2. Block all wheels to prevent inadvertent movement.
Figure 16-1
3. Working one side at a time, remove three plugs from differential housing
(located at 12 o’clock, 4 o’clock and 8 o’clock). Put plugs aside.
5. Tighten each release screw revealed by the plugs, lightly until it just makes
contact with guide pin.
6. Working carefully, tighten each release screw only 1/4 turn (90°) at a time,
in sequence, until all three screws have been turned one full turn 360°
approximately 67 n.m (50 ft.-lb.). Larger turns could cause components to
bind and cause brake failure.
7. Repeat this procedure on other side of differential. Parking brake should be
released.
TO RESTORE PARKING BRAKE
Make certain engine is stopped and all wheels are blocked.
Loosen each release screw, only 1/4 turn at a time, in sequence, until each
screw has lost contact with guide pin. Then back out each screw until it bottoms
out against the stop. Install plugs over each release screw.
Repeat procedure on other side of differential. Parking brake should be restored
to operation.
16.1
RELEASE
SCREW
(12 o’clock
position)
RELEASE
SCREW
(4 o’clock
position)
FRONT OF
MACHINE
RELEASE
SCREW
(8 o’clock
position)
WARNING !
If you release the park brake
without first blocking the wheels,
the material handler could roll.
Block all wheels before releasing
park brake.