JLG 460SJ Service Manual - Manual (Page 55)

SECTION 3 - CHASSIS & TURNTABLE
3120895 – JLG Lift – 3-3
Disassembly of Cover Unit (8)
1. Loosen and remove hex. hd. bolts (53) and remove
cover (51).
2. Remove Shaft rod (56), O-ring (54), and sleeve (52)
Disassembly of First Stage Planetary
Assembly
1. Push the sun gear shaft (43) out of the first stage.
2. Remove snap rings (14) and press planet pins (5)
out of planet carrier (7) and planet gears (2).
3. Pull cylindrical roller bearing (10) out of planet gears
(2).
4. Remove snap ring (16) from sun gear (3) and
remove the thrust washer (49).
Disassembly of the Second Stage Planet
Gears (1)
Press cylindrical roller bearings out of planet gears (1).
Assembly of First Stage Planetary Assembly
(7)
1. Pre-freeze planet pins (5) and install into planet car-
rier (7).
2. Install planet carrier (7) together with planet pins (5)
on sun gear (3), and snap ring (16).
3. Pre-heat thrust washer (49) and install onto sun gear
shaft (43).
4. put sun gear shaft (43) into sun gear (3).
5. Pre-heat stay rings (17) and install onto planet pins
(5).
6. Pre-heat cylindrical roller bearings (10) and install
onto planet pins (5) and fix bearings with snap rings
(14).
Assembly Of End Cover Unit (8)
1. Press sleeve (52) and install O-ring into cover (8).
2. Install shaft rod into cover (8).
3. Install cover into cover (8) and fix cover (51) with
hex. hd. bolts (53). Torque bolts to 6.3 ft. lbs.(8.5
Nm).
Final Assembly
1. Install thrust washer (29) in spindle (60).
2. Install O-ring (19) into groove of support ring (6).
3. Install planet gears (1) onto planet pins which are
part of spindle (60).
4. Install snap rings (15) on planet pins of spindle (60)
in order to fix the planet gears (1).
5. Put ring gear (30) onto support ring (6) and fix ring
gear (30) with hex. hd. bolts (23). Torque bolts to
15.5 ft. lbs.(21.1 Nm).
6. Insert first stage planetary assembly (7) into drive.
7. Install O-ring (33) in groove of ring gear (30).
8. Install end cover unit (8) on shoulder ring gear (30)
and fix with snap ring (34).
9. Install seal rings (21) and screw plugs(22).
10. Before installation of the motor CHECK THAT
THERE IS 1-2 MM. OF CLEARANCE BETWEEN THE
MOTOR SPLINE SHAFT SHOULDER AND THE
COUPLER (62).
11. Install motor and reconnect hydraulic lines.
12. Roll motor so that one fill plug hole is at 12 o’clock
position and the other is a 3 o’clock. Fill hub to bot-
tom of 3 o’clock hole with gear oil. Reinstall plugs.
13. After four hours of operation, recheck oil level.