JLG 80HX_HX+6_HXER Service Manual - Manual (Page 77)

SECTION 2 - PROCEDURES
3120863 – JLG Lift – 2-55
22. Place cover assembly over ring gear with oil level
check plug in cover located approximately 90
degrees from oil fill plug in hub.
23. Locate four shoulder bolts (42) 90 degrees apart into
counterbored holes in hub marked in step (16).
Torque shoulder bolts to 31-36 NM.
24. Install bolts (41) in remaining holes. Torque bolts to
31-36 NM.
25. Place coupling (43) into spindle and onto input
shaft.
26. Fill hub one-half full of EPGL 90 lubricant before
operation.
2.20 DRIVE BRAKE, AUSCO - MACHINES
BUILT PRIOR TO 1992
Disassembly
1. With shaft protruding downward, remove bolts (22)
alternately and evenly to reduce spring tension.
2. Remove power plate (21) and gasket 2.
3. Bearing (18) is pressed onto shaft (7) and must be
removed before removal of rotating discs (11) and
stationary discs 12.
4. Further disassembly is not recommended unless
necessary for the replacement of specific parts.
5. If further disassembly is required, remove shaft (7)
and stack sub-assembly from housing (1) by lightly
tapping or pressing on the small external spline end
of the shaft and removing the shaft, bearings and
stack from housing.
6. Remove bearing (18), stationary disc (12), rotating
disc (11), springs (10) and primary disc 9.
7. Remove bearing (3) from shaft using care not to
damage seal 4. Remove seal 4.
8. Remove springs (6) and spring retainer (5) from
housing.
9. Remove piston (13) from power plate by introducing
low pressure air (1 Bar) into hydraulic inlet. Direct
piston away from operator.