Genie GTH-636 Service Manual page 145

June 2007
REV D
How to Manually Release the
Parking Brake
GTH-636, GTH-644, GHT-842 and GTH-844
1 Remove the top inspection cover from the
chassis at the fork end of the machine. Locate
the parking brake cylinder on top of the drive
axle.
2 Loosen the lock nut securing the threaded
portion of the parking brake adjustment rod.
3 Turn the threaded rod out of the cylinder until
the parking brake is released, counting the
number of revolutions the rod is turned.
Note: For ease in recalibrating the parking brake
cylinder rod, it is helpful to keep an accurate count
of revolutions that the rod is turned when releasing
the brake.
GTH-1048 and GTH-1056
In the rare event of an engine failure, it may be
necessary to release the brakes before moving the
machine.
1 Chock the tires.
2 Working at the front axle, locate the four parking
brake release bolts with jam nuts at the
locations shown in the illustration. Fully loosen
the jam nuts which secures the bolts in position.
Part No. 97487 GTH-636 • GTH-644 • GTH-842 • GTH-844 • GTH-1048 • GTH-1056
Section 4 • Repair Procedures
3 Turn the parking brake release bolts equally
into the differential housing until the parking
brake is released.
Component damage hazard.
Turning the parking brake release
bolts into the housing in unequal
amounts may damage the parking
brake internally. Do not turn the
parking brake release bolts into
the housing in unequal amounts.
4 To reset the parking brake, turn the bolts in
equal amounts out of the differential housing
until the top of each bolt is 32 ±1 mm from the
differential case. Securely tighten the jam nut.
Do not over tighten.
32±1 mm
How to Repair the Axle
GTH-636, GTH-644, GHT-842 and GTH-844:
Repair procedures and additional axle information
is available in the Dana 212 Axle Maintenance and
Repair Manual (Dana part number 0247).
Dana 212 Axle Maintenance and Repair Manual
Genie part number
GTH-1048 and GTH-1056:
Repair procedures and additional axle information
is available in the Dana 213 Axle Maintenance and
Repair Manual (Dana part number 0243).
Dana 212 Axle Maintenance and Repair Manual
Genie part number
AXLE
97488
115026
4 - 75