JLG 150HAX Service Manual - Manual (Page 64)

SECTION 3 - CHASSIS & TURNTABLE
3-26 – JLG Lift – 3120817
7. Remove o-ring (6) from counterbore around rim of
cover. Discard o-ring.
8. Remove thrust washer (27) from “ledge” halfway
down in counterbore in center of cover. Thrust
washer may be on top of coupling (26). Remove
washer and set it aside.
9. Remove thrust washer (22) from around edge of
raised circular center of cover. Thrust washer may
be around coupling (26). Remove thrust washer and
set it aside.
10. Remove coupling from end of input gear (25).
11. Lift ring gear off of hub (9).
12. Lift input gear (25) out of hub.
13. Lift carrier assembly (16) out of hub. Disassemble
carrier assembly as follows:
a. Set cluster (planet) gear (19) on its side. Using a
hammer and alignment punch, drive roll pin (18)
completely into hole in planet shaft (14). If roll
pin is not completely driven into hole in planet
shaft, carrier housing could be damaged when
planet shaft is removed.
b. Using a punch and hammer, drive planet shaft
down out of carrier housing (16). When planet
shaft is removed from carrier housing, two thrust
washers (15) and assembled cluster gear will
slide off planet shaft into carrier housing.
Remove these parts from carrier housing.
c. Remove nineteen needle rollers (13) from inside
large end of cluster gear.
d. Remove spacer (17) from inside of cluster gear.
e. Remove nineteen needle rollers (19) from inside
of small end of cluster gear.
f. Repeat steps (a) through (e) for remaining two
cluster gears.
14. Remove o-ring (23) from counterbore of hub. Dis-
card o-ring.
15. Remove thrust washer (22) from around shaft (1) in
hub.
16. Lift internal gear (20) out of hub.
17. Disassemble hub/shaft assembly (9) as follows:
a. Remove three pipe plugs (12) from side of hub.
b. Bend the aligned tang of lockwasher (6) out of
slot in locknut (8).
c. Remove locknut from shaft.
NOTE: It may be necessary to cut locknut from shaft. If this
is necessary, take care not to damage shaft and be
sure to discard locknut.
d. Remove lockwasher from around shaft.
e. Remove tanged washer (7) from around shaft.
f. Set hub on something wide enough to allow
shaft to fall out of hub, and hammer or press
shaft down out of hub.
g. Bearing cone (3) should be lying loose in hub.
Remove bearing cone and set it aside.
h. Remove seal (10) and discard it. Seal may be
loose around shaft, or it may still be in small end
of hub.
i. Using a punch and hammer, remove bearing
cone (5) from around shaft.
j. Using a punch and hammer, carefully drive bear-
ing cup (4) out of counterbore in small end of
hub.
k. Turn hub over. Using a punch and hammer,
carefully drive bearing cup (2) out of counter-
bore in tall end of hub.
Cleaning and Inspection
1. Clean all parts thoroughly in an approved cleaning
solvent.
2. Inspect bearing components (2, 3, 4, 5) for damage,
pitting, corrosion or excessive wear. Replace bear-
ings as a complete set if necessary.
3. Inspect all thrust washers for scoring or excessive
wear.
4. Inspect all geared or splined components for
chipped or broken teeth and for excessive or
uneven wear patterns.
5. Inspect o-ring grooves in hub (9) and cover (28) for
burrs or sharp edges. Dress applicable surfaces as
necessary.
6. Inspect all thrust washer and bearing surfaces for
damage. Repair or replace as necessary.
7. Inspect all threaded components for damage includ-
ing stretching, thread deformation or twisting.
Replace as necessary.
8. Inspect planet shafts (14) for scoring or other dam-
age. Replace as necessary.