Torque Hub Section 2 - Service and Repair
Page 2-24 067448-023 LX31/LX41 Electric and Bi-Energy Work Platform | European Specifications
M
AIN
A
SSEMBLY
1. Position hub on its output shaft so that hubs small diameter end points down.
2. Using a marker, mark the four shoulder bolt holes in hub.
3. Grease O-ring and place in counterbore in hub.
NOTE:
O-rings may be stretched or squeezed together in order to fit exactly in counterbore.
4. Oil all exposed surfaces inside hub. Oil carrier sub-assembly.
5. Place carrier sub-assembly, with spline connections down, into mesh with output shaft.
6. Place ring gear, with squared shoulder down, into mesh with the planet gears of the carrier sub-assem-
bly. Make sure that marked shoulder bolt hole on ring gear aligns with any of the marked shoulder bolt
holes on the hub. “X” mark should be on the cover side of ring gear.
7. Start one half of retaining ring into groove inside input gear. Use a soft punch to press the remaining half
of the retaining ring into the groove.
8. Insert input gear, with large diameter end down, into mesh with planet gears.
9. Place large thrust washer over input gear so it rests on carrier housing. Oil all exposed surfaces inside
hub.
10. Grease O-ring and place into counterbore of cover.
NOTE:
O-rings may be stretched or squeezed together in order to fit exactly in counterbore.
11. Place cover on top of ring gear so the fill hole will be at top of hub when it is installed.
12. Install four shoulder bolts into shoulder bolt holes and tighten.
13. Install eight cap screws in remaining holes and tighten.
14. Apply 30-35 N-m (23-27 ft. lbs) of torque to all bolts.
15. Apply a light coat of “Never Seize” to both pipe plugs and install into the two holes in cover.
16. Roll test the unit in both clockwise and counterclockwise directions. Turn hub nine full revolutions in each
direction.
17. Leak test the hub at 0,35 bar (5PSI)fortwotothreeminutes.
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