SECTION 3 - CHASSIS & TURNTABLE
3-10
– JLG Lift –
3120746
3.2 TORQUE HUB, DRIVE (AUBURN GEAR)
Disassembly
1. Position hub over suitable container and remove
drain plugs (27) from unit. Allow oil to completely
drain, then replace drain plugs.
2. Remove twelve bolts (25) and flat washers (26) and
the cover from the hub (9). The thrust washer (21)
and the disengage plunger (22) usually remain with
cover (24) when it is removed. Remove thrust
washer (21), disengage plunger (22) and o-ring (23)
from the cover (24), discard o-ring seal (23).
3. Remove primary sun gear (20) from input shaft (2).
4. Remove the primary carrier assembly (19).
5. Remove the secondary carrier assembly (18). It may
be necessary to remove the ring gear (17) first, if dif-
ficulty is encountered removing the carrier.
6. Remove the input shaft (2) from spindle (3). Remove
the retaining rings (14), washers (15), and spring
(16) from input shaft (2) only if replacement is
required.
NOTE:
The retaining rings (14), washers (15) and disen-
gage spring (16) are not included in unit equipped
with a cast iron disengage cover (29).
7. If not previously removed (see step 5), remove ring
gear (17) from hub (9). It may be necessary to strike
ring gear (17) with a rubber mallet to loosen from
hub (9).
8. Remove the retaining ring (13) from groove in spin-
dle (3).
NOTE:
Use a retaining ring expander tool to remove retain-
ing ring (13).
9. Lift hub (9) from spindle (3). If bearings are not a
loose fit, it may be necessary to press spindle (3)
from hub (9).
10. Remove oil seals (4) and (5) and bearing cones (6 &
11) from the hub (9). Inspect bearing cups (7 & 10)
in position and remove only if replacement is
required.
Assembly
1. If necessary press new bearing cups (7 & 10) in
each end of the hub (9). It is recommended that
bearing cups (7 & 10) and cones (6 & 11) be
replaced in sets.
2. Assemble bearing cone (6) into cup (7) at seal end
of hub (9) and press a new seal (5) into hub. Install
boot seal (4) on the hub (9) if hub is so equipped.
3. Position spindle (3) upright on bench. Lubricate lips
of seals (4) and (5) and lower hub onto spindle (3).
Hub should be centered as it is lowered over spindle
(3) to prevent seal damage.
4. Assemble bearing cone (11) over spindle (3) and
into bearing cup (10). Replace thrust washer (12)
over spindle end splines and on bearing cone (11).
5. Select the thickest ring (13) that can be assembled
into the ring groove of the splined end of spindle (3)
above bearing. Bearing should have from 0.00 - 0.15
mm (0.000 - 0.006 inches) of end play when proper
retaining ring (13) is installed.
6. For hubs equipped with the standard spring discon-
nect or optional quick disconnect, assemble a
washer (15), spring (16), a second washer (15), and
retaining ring (14) in the middle grooves of the input
shaft (2). Install second retaining ring (14) in groove
near small end of input shaft.
7. Assemble the splined end of the input shaft (2) down
into spindle (3).
8. Assemble the secondary carrier assembly (18) to
spindle (3) at splines.
9. Clean mating surfaces and apply a bead of silicone
sealant to face of hub (9) that mates with ring gear
(17). Assemble ring gear (17) to hub (9), being care-
ful to align bolt holes.
10. Assemble the primary carrier assembly (19) into the
ring gear (17). It will be necessary to rotate carrier to
align secondary sun gear (part of primary carrier
assembly (19)) with planet gear teeth in secondary
carrier assembly (18). Assemble primary sun gear
(20) over input shaft (2). Rotate primary sun gear
(20) to align input shaft (2) to gear splines and gear
teeth in primary carrier assembly (19).
11. Lubricate o-ring (23) and assemble in groove inside
cover hole, then push disengage plunger (22) into
cover with pointed end facing inside of hub.
NOTE:
These parts (22 & 23) are not included in hubs pro-
duced with a cast iron disengage cover (29).
12. For hubs with the standard spring disengage,
assemble the thrust washer (21) with tangs engaged
with cover (24). Note: A small amount of grease
applied to the back side of thrust washer (21) will
hold washer in place.
13. Assemble cover (24), aligning holes of cover and
ring gear. Assemble the twelve bolts (25) and flat
washer (26). Torque bolts to 61 - 67 Nm (45 - 50 ft.
lbs.).
Содержание 601S
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Страница 26: ...SECTION 1 SPECIFICATIONS 1 10 JLG Lift 3120746 Figure 1 3 Torque Chart ...
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Страница 51: ...SECTION 3 CHASSIS TURNTABLE 3120746 JLG Lift 3 11 Figure 3 2 Torque Hub Drive Auburn Gear ...
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