JLG 600A_AJ Service Manual - Manual (Page 98)

SECTION 3 - CHASSIS & TURNTABLE
3-48 – JLG Lift – 3121201
Disassembly
1. Loosen all 12 cover bolts (12)&(13) and drain the oil
from the unit.
2. Remove the 12 cover bolts (12)& (13) and lift off the
cover (6). Remove and discard the O-ring (5) from
the counterbore of the cover (6).
3. Remove the input gear (8) and thrust washer (10).
4. Lift out the carrier assembly (3) and top thrust
washer (11). The thrust washer (11) may stick to the
inside of the carrier (3).
5. Remove the input thrust spacer (9).
6. Lift out the internal gear (2) and thrust washer (11).
The thrust washer (11) may stick to the under side of
the carrier (3).
7. Remove the retaining ring (1I) from the output shaft
(1A) and discard.
EYE PROTECTION SHOULD BE WORN DURING RETAINING RING
(1I) REMOVAL.
8. Remove bearing shim (1H) from the output shaft
(1A).
9. The output shaft (1A) may now be pressed out of the
hub (1G).
10. THe bearing cups (1C)&(1E) will remain in hub (1G)
as will bearing cone (1F). Bearing cone (1D) will
remain on the same output shaft (1A). The seal (1B)
will be automatically removed during this procedure.
NOTE: If bearing replacement is necessary, the bearing
cups can be removed with a slide hammer puller
driven out with a punch.
11. To remove the cluster gears (3F) from the carrier
(3A), drive the anti-roll pin (3G) into the planet shaft
(3E) may now be tapped out of the carrier. After
planet shaft (3E) has been removed the roll pin (3G)
can be driven out.
12. The cluster gear (3F) can now be removed from the
carrier (3A). THe thrust washers (3B) will be
removed with the cluster gear (3F).
13. The needle rollers (3C) and spacer (3D) are now
removed from the cluster gear (3F).
WHEN REBUILDING OR REPAIRING THE UNIT, THE RETAINING
RING (1I), O-RINGS (5) AND SEAL (1B) SHOULD ALWAYS BE
REPLACED.
Main Assembly Procedure
1. With the hub shaft sub-assembly resting on the shaft
(1A) install internal gear (2). The spline of the inter-
nal gear (2) bore will mesh the spline of the output
shaft (1A).
2. Thrust washer (11) is installed on the face of the out-
put shaft (1A). Sufficient grease or petroleum jelly
should be used to hold thrust washer in place.