SHOP MANUAL
Paragraph 10
It is suggested that backlash between
bevel gear (6) and pinion gear (9) be
hecked prior to disassembly to deter-
ine if gears or bearings are excessively
worn. Thread a long bolt (1-Fig. 16) in-
to the oil drain plug hole until it contacts
pinion gear to prevent the gear from
moving. Install a bolt (3) in wheel hub
flange (2) and position a dial indicator (4)
against head of bolt shown. Rotate hub
back and forth and note dial indicator
reading. Normal backlash is 0.20-0.40
mm (0.008-0.016 inch). If backlash ex-
ceeds 0.50 mm (0.020 inch), renew bear-
ings or gears as necessary.
To disassemble outer drive, remove
outer cover retaining cap screws and
remove cover (3-Fig. 13, 14 or 15) with
wheel axle (1) and bevel gear (6) as as
assembly. Remove inner bearing (7),
bevel gear (6) and snap ring (5) from
wheel axle shaft, then drive the axle
shaft out of the outer cover. Remove cap
screws attaching steering arm (20 or 21)
to reduction gear housing (10) and sep-
arate housing from pinion gear case (14).
On early 1310. 1510 and 1710 models,
remove cap screw attaching steering
arm to king pin (19-Fig. 14). On all
models, remove bearings, pinion gears
(9 and 23) and drive shaft (11) from the
housings.
Inspect all parts for wear or damage
and renew as necessary. Renew all "0"
rings and oil seals when reassembling.
10.
BEVEL DRIVE GEARS AND
DIFFERENTIAL. To remove differen-
tial and bevel gears, first remove both
outer drive assemblies as outlined in
paragraph 9. Remove front axle as-
sembly as outlined in paragraph 8. The
differential and ring gear can be re-
moved after unbolting and separating
left-hand axle housing (1110 and 1210
models) or right-hand axle housing (all
other models) from differential center
housing (19-Fig. 17, 18, 19 or 20).
Bevel pinion (20) can be removed after
removing nuts (25) from the shaft. Drive
the shaft inward until free of rear bear-
ing
(23).
Be sure to note the location and
thickness of all shims and retain for use
in reassembly.
To disassemble differential unit on
1110 and 1210 models, remove carrier
bearings
(9
-
Fig.
17)
and side gears (14).
Drive out the retaining pin (11) and
remove pinion gear shaft (10), pinion
gears (15) and thrust washers (16).
To disassemble differential unit on
1310 and 1510 models, remove differen-
tial case cover (7-Fig. 19), side gear
(14) and thrust washer (8). Remove pin-
ion gear shaft retaining pin, then
withdraw shaft (10), pinion gears (15),
thrust washers (16) and the other side
gear (14) from differential case (12).
To disassemble differential unit on
1710 and 1910 models, remove left side
gear (14-Fig. 18) and bearing (9).
Remove snap ring
(11),
then slide pinion
gear shaft (10) out of differential case.
Remove pinion gears (15), thrust
washers (16) and right side gear (14).
To disassemble differential unit on
2110 models, remove cover (7-Fig. 20),
side gear (14) and thrust washer
(8)
from
Fig. 14—Exploded view of outer drive assembly used on
1310
and
1510
models. Drive assembly used on
1710
and
1910
models Is
similar.
Parts shown
In Inset are used on late production tractors. Refer to Fig. 13 for legend except for differential housing (31) and cover plate (32).
13
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