JLG 40H Service Manual - Manual (Page 90)

SECTION 2 - PROCEDURES
2-70
– JLG Lift – 3120240
5. Place bearing cone 6 over end of spindle and into
bearing cup 5.
6. Place tongued washer 8 over end of spindle and
against bearing cone.
EYE PROTECTION SHOULD BE WORN DURING RETAINING RING
INSTALLATION.
7. Install new lockwasher 9 on top of tongued washer
8. Insert the tab on lockwasher 9 into the slot in spin-
dle/brake 1.
8. Apply loctite #277 to the second screw thread from
the bottom of locknut 10. The bottom of the locknut
(10) has a chamfered or sloped edge.
9. Place locknut 10 onto spindle/brake 1. Use an N-13
locknut wrench (tool no. T-141863) to tighten the
locknut.
10. Using a torque wrench and the locknut wrench,
apply 50 ft.-lbs. (68 NM) of torque to locknut 10, then
rotate the hub in both clockwise and counterclock-
wise directions. Repeat this step two more times.
ONE TANG ON LOC KWAS HER 9 M UST LINE UP WITH ON E
NOTCH ON LOCKNUT 10. IF ON TANG AND NOTCH ARE NOT
ALIGNED, APPLY SUFFICIENT INCREASED TORQUE UNTIL THEY
ARE. NEVER LOOSEN THE LOCKNUT.
11. Bend the aligned tang on lockwasher 9 up into the
notch on locknut 10.
12. Using a center punch and hammer, stake locknut 10
at four equally spaced points around the locknut
and at a distance of 1/8 in. from its inside edge.
13. Mark the four shoulder bolt holes on hub 7 so they
can be aligned with the shoulder bolt holes in the
ring gear and cover in a later step.
14. Place internal gear 14 into hub 7 so that its internal
splines mesh with the external splines of the spindle/
brake 1. Apply oil to internal gear 14.
15. Place thrust washer 39 onto spindle/brake 1 so that
it rests on the bottom of internal gear 14.
16. With large, splined end down, place input shaft
assembly 32 into spindle/brake 1.
17. Place thrust spacer 37 onto input shaft 32.
18. With internal splines facing up, place input gear 36
into mesh with input shaft sub-assembly 32.
19. Place carrier assembly 15 on a flat surface with large
ends of cluster gears 20 face up and positioned as
shown in Figure 2-38. Find punch marked tooth on
each large gear and locate at 12 o’clock (straight
up) from each planet pin. Marked tooth will be
located just under carrier on upper two gears.
20. With shoulder side of ring gear 22 facing down,
place ring gear over (into mesh with) large gears 20.
Ensure punch marks remain in correct location dur-
ing ring gear installation.
21. Place carrier assembly 15 and ring gear 22 together
into mesh with internal gear 14. Align the shoulder
bolt hole in ring gear 22 marked with an “X” over
one of the shoulder bolt holes in the hub.
NOTE: If gears do not mesh easily or carrier assembly does
not rotate freely, then remove carrier and ring gear
and check cluster gear timing.
22. Place thrust spacer 38 onto input shaft assembly 32.
Install thrust waster 39 into counterbore 15.
23. Place o-ring 23 into cover assembly counterbore. Use petroleum jelly or grease to hold o-ring in place.
Figure 2-38. Torque Hub Carrier Timing.