JLG 40H Service Manual - Manual (Page 86)

SECTION 2 - PROCEDURES
2-66
– JLG Lift – 3120240
EYE PROTECTION SHOULD BE WORN DURING RETAINING RING
INSTALLATION.
7. Install new retaining ring 12 completely into spindle
groove and against bearing shim. Ensure retaining
ring is entirely in groove.
8. Place internal gear 13 onto end of spindle.
9. Place input shaft assembly into spindle bore with
unsplined end facing out.
10. Place narrow thrust washer 19 over input shaft 14
with counterbore side facing spindle.
11. Place o-ring 29 into hub counterbore. Use petroleum
or grease to hold o-ring in place. Slight stretching of
o-ring may be necessary to insure proper seating.
12. Place carrier assembly on a flat surface with large
gears up and positioned as shown in Figure 2-26.
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.
13. With shoulder side of ring gear 30 facing down,
place ring gear over (into mesh with) large gears.
Ensure punch marks remain in correct location dur-
ing ring gear installation.
14. Install input gear 20 into carrier, meshing with small
diameter cluster gears 28. Counterbore in bore of
input gear must be to outside of carrier assembly.
15. Turn over carrier assembly and ring gear while keep-
ing gears in mesh. Place thrust washer 18 into car-
rier counterbore. Use petroleum jelly or grease to
hold washer in place.
16. While holding ring gear, input gear, and cluster
gears in mesh, place small side of cluster gears into
mesh with internal gear. On ring gear, locate hole
marked ‘X’ over one of counterbored holes in hub.
Mark counterbored holes on outside diameter for
later use.
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.
17. Slide thrust spacer 21 over end of input shaft.
18. Place thrust washer 31 into carrier counterbore.
19. Place o-ring 29 into cover assembly counterbore.
Use petroleum jelly or grease to hold o-ring in place.
20. Pace cover assembly over ring gear with oil level
check plug in cover located approximately 90
degrees from oil fill plug in hub.
21. Locate four shoulder bolts 41 and flat washers 42 90
degrees apart into counterbored holes in hub
marked in step 16. Torque shoulder bolts to 23-27 ft.
lbs. (31-36 NM).
22. Install bolts 41 in remaining holes. Torque bolts to
23-27 ft. lbs. (31-36 NM).
23. Place coupling 1 into spindle and onto input shaft.
24. Fill hub one-half full of EPGL 90 lubricant before
operation.
2.25 TORQUE HUB 4WD. (SEE FIGURE 2-37.)
Disassembly.
1. Position hub over suitable container and remove
drain plugs 12 from unit. Allow oil to completely
drain, then replace drain plugs.
2. Remove eight bolts 40 and four shoulder bolts 41
securing cover assembly to hub 24. Remove cover
assembly and discard o-ring seal 23.
3. Remove top thrust washer 39 from hub. Thrust
washer may stick inside cover.
4. Remove top thrust spacer 38 from input shaft sub-
assembly.
5. Pry ring gear 22 loose from hub and remove it.
6. Lift carrier assembly 15 from hub.
7. Remove input gear 36 and thrust spacer 37 from
input shaft assembly and remove input shaft assem-
bly from hub.
8. Remove input shaft 32 and thrustwasher 16 from
hub. Thrust washer may stick to bottom of carrier.
9. Remove internal gear 15 from hub.
10. Using a screwdriver or chisel and hammer
straighten out the tang on lockwasher 9 which has
been bent into the notch in locknut 10.
EYE PROTECTION SHOULD BE WORN DURING RETAINING RING
REMOVAL.
11. Using an N-13 locknut wrench (tool #T-141863),
loosen locknut 10. Remove the locknut 10 from spin-
dle/brake and lockwasher 9 and discard.
12. Remove the tongued washer 8 from spindle/brake 1.
13. Remove bearing cone 6 from hub 7.
14. Remove hub 7 from spindle/brake 1.