JLG 25RTS, Service & Maintenance

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SECTION 2 - PROCEDURES
3120826 – JLG Sizzor – 2-37
h. Remove roll checker from spindle/brake.
i. Remove hydraulic line from its brake port.
j. Remove bleeder valve from its brake port.
3. Leak test unit at a pressure of 0.4 bar (5 psi) for 2 to
3 minutes.
4. Remove the twelve grade 8 bolts and four shoulder
bolts from cover.
5. Remove flat washers from cover.
6. Remove cover from hub.
7. If necessary, disassemble cover as follows:
a. Remove pipe plug from cover if it has not
already been removed.
b. Set cover down so that its open end faces up.
Remove o-ring from counter bore in cover. Dis-
card o-ring.
c. Turn cover over. Remove two bolts that hold dis-
connect cap in place.
d. Remove disconnect cap from cover.
e. Remove two remaining bolts that hold cover cap
in place.
f. Remove cover cap from cover.
g. Remove disconnect rod from cover cap.
h. Remove o-ring from groove inside cover cap.
Discard o-ring.
i. Remove o-ring from outside of cover cap. Dis-
card o-ring.
8. Remove thrust washer from carrier assembly.
9. Remove thrust spacer from input shaft assembly).
10. Remove ring gear from mesh with carrier assembly.
11. Remove carrier assembly from hub.
12. If necessary, disassemble carrier assembly as fol-
lows:
a. Locate roll pin in carrier housing. Drive roll pin
down into planet shaft until it bottoms against
carrier housing. If roll pin is not completely
driven into planet shaft, damage to carrier could
occur when shaft is removed.
b. Drive roll pin out of planet shaft. Roll pin must
come out through side of planet shaft that it orig-
inally went into.
c. Remove planet shaft from carrier housing. Two
thrust washers and cluster gear will slide off.
d. Remove needle rollers and spacer from inside
cluster gear.
e. Repeat steps (a) through (d) to remove two
remaining cluster gears.
13. Remove input gear from input shaft assembly.
14. Remove thrust spacer from input shaft assembly.
15. Remove input shaft assembly from spindle/brake.
16. If necessary, disassemble input shaft as follows:
a. Remove retaining ring from input shaft. Discard
retaining ring.
b. Slide spacer, spring, and other spacer off of
input shaft.
17. Remove thrust washer from bottom of internal gear.
18. Remove internal gear from hub.
19. Remove o-ring from counter bore in hub. Discard o-
ring.
20. Using a screwdriver or chisel and hammer,
straighten out tang on lock washer which has been
bent into notch in locknut.
21. Using an N-13 locknut wrench (tool no. T-141863),
loosen locknut. Remove locknut from spindle/brake
and discard.
22. Remove lock washer from spindle/brake and dis-
card.
23. Remove tongued washer from spindle/brake.
24. Lift bearing cone out of hub.
25. Lift hub off of spindle/brake.
26. Using a slide hammer, remove seal from small end
of hub. Discard seal.
27. Lift bearing cone off of spindle/brake.
28. Using a soft punch and hammer, remove bearing
cup from deep end of hub.
NOTE: When using punch, be very careful not to strike
counter bore of hub where cup is located.
29. Using a soft punch and hammer, remove bearing
cup from shallow end of hub.
NOTE: This cup can be reached by putting punch into small
access hole in bottom of hub’s deep end.
30. Remove two pipe plugs from pipe plug holes in side
of hub.
31. Remove two magnetic pipe plugs from pipe plug
holes in flange of hub.
32. Hammer out nine studs.