JLG 510AJ Service Manual - Manual (Page 72)

SECTION 3 - CHASSIS AND TURNTABLE
3-30 – JLG Lift – 3121181
WEAR SAFETY GLASSES DURING THIS STEP, AND BE AWARE THAT SPRING AND
SPACERS COMPRESSED BY RETAINING RING MAY POP SUDDENLY OFF SHAFT
WHEN YOU REMOVE THE RETAINING RING.
12. Using retaining ring pliers, remove retaining ring (7B)
from the groove on input shaft (7A).
13. Remove one spacer (7D), one spring (7C), and other
spacer (7D) from input shaft (7A).
14. Remove thrust washer (11) from around spindle (1A).
15. Lift internal gear (2) out of hub (1G).
BEWARE OF SHARP EDGES IN COUNTERBORE WHEN YOU REMOVE THE O-
RING.
16. Remove o-ring (5) from the counterbore in hub (1G). Dis-
card the o-ring.
17. At this point the main disassembly for ”B” drives is com-
plete.
Hub-Spindle Disassembly
NOTE: Start with large end of hub facing up, large end of spindle
facing down.
WEAR SAFETY GLASSES DURING THIS STEP.
1. Remove retaining ring (1I) from around spindle (1A) ia
hub (1G).
2. Remove spacer (1H) from around spindle (1A) in hub
(1G).
3. Set hub (1G), small end/spindle facing down, up on
something that will support the hub’s flange while it lifts
hub up so spindle is not resting on anything. Carefully
press or hammer spindle (1A) down out of hub (1G).
NOTE: If seal (1B) and bearing cone (1D) come out of hub and rest
on spindle, remove these parts from the spindle and set
them aside. Discard the seal.
4. If seal and bearing cone did not come out of small end
of hub (1G) when you pressed spindle out of hub,
remove seal (1B) and bearing cone (1D) from the small
end of hub (1G). Discard the seal.
5. Bearing cone (1F) should be lying loose in wide end of
hub (1G). Remove bearing cone (1F) from inside hub
(1G).
NOTE: If you use a punch and hammer, make sure you do not
strike counterbore with punch when you remove bearing
cup.
6. Remove bearing cup (1C) from the counterbore in the
small end of hub (1G).
NOTE: If you use a punch and hammer, make sure you do not
strike the counterbore with the punch when you remove
the bearing cup.
7. Turn hub (1G) over and lift it out of the flange-support.
Remove bearing cup (1E) from the counterbore in the
wide end of hub (1G).
8. Turn hub (1G) over onto its small end. Remove two pipe
plugs (1J) from the two pipe plug holes in the side of
hub (1G).
NOTE: If your unit does not have studs, skip this step:
9. Press nine studs (1N) out of stud holes in hub (1G).
10. At this point hub-spindle disassembly is complete.
Cover Disassembly
1. Remove two bolts (6C) holding disconnect cap (6D) to
cover (6A).
2. Remove disconnect cap (6D) from on top of cover cap
(6B) and cover (6A).
3. Remove the two bolts (6C) holding cover cap (6B) to
cover (6A).
4. Remove cover cap (6B) from cover (6A).
5. Remove disconnect rod (6K) from cover cap (6B).
6. Pry o-ring (6F) out of the groove inside cover cap (6B).
Discard the o-ring.
7. Remove o-ring (6G) from the flange of cover cap (6B).
Discard the o-ring.
8. Remove pipe plug (6H) from cover (6A).
9. At this point the cover disassembly is complete.
Carrier Disassembly
NOTE: When you remove needle rollers from cluster gears, discard
old needle rollers and use new ones during re-assembly.
1. Using a punch and hammer, drive roll pin (3G) into
planet shaft (3E).
NOTE: If you don’t drive the roll pin all the way into the planet
shaft t, you could damage the carrier when you remove the
planet shaft from the carrier.
2. Using a punch and hammer, drive planet shaft (3E) out
of the planet shaft t hole in carrier housing (3A).
3. When you remove planet shaft (3E) from carrier housing,
one thrust washer (38), one cluster gear (3F), and one
more thrust washer (3B) will come off of the planet shaft
and come to rest inside the carrier. Remove these parts
from inside the carrier.