Kubota M108S, Workshop Manual

Page: 289 / 523

3-S43
M108S, WSM TRANSMISSION
[6] DIFFERENTIAL GEAR
IMPORTANT
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• When reassembling spiral bevel pinion shaft and differential assembly, be sure to adjust the following.
• Turning torque of spiral bevel pinion shaft only.
• Turning torque of spiral bevel pinion shaft and differential assembly combined.
• Backlash and tooth contact between spiral bevel pinion shaft and spiral bevel gear.
Turning Torque of Spiral Bevel Pinion Shaft Only
1. Reassemble the spiral bevel pinion shaft and tighten the staking
nut (2) with locking wrench and turning wrench.
2. After striking the bevel pinion shaft to the front and rear, retighten
the staking nut (2) to specified torque.
3. Measure the turning torque of spiral bevel pinion shaft.
4. If the measurement is not within the factory specifications, adjust
the tightening torque of staking nut (2).
(When reassembling)
(Reference)
• Thickness of adjusting collar (1)
1.0 mm (0.0394 in.) [Code No. 33251-32450]
1.5 mm (0.0591 in.) [Code No. 33251-32460]
1.7 mm (0.0669 in.) [Code No. 33251-32470]
1.75 mm (0.0689 in.) [Code No. 33251-32480]
1.8 mm (0.0709 in.) [Code No. 33251-32490]
1.9 mm (0.0748 in.) [Code No. 33251-32510]
2.0 mm (0.0787 in.) [Code No. 33251-32520]
2.1 mm (0.0827 in.) [Code No. 33251-32530]
2.2 mm (0.0866 in.) [Code No. 33251-32540]
2.25 mm (0.0886 in.) [Code No. 33251-32550]
2.3 mm (0.0906 in.) [Code No. 33251-32560]
NOTE
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• Stake the staking nut after performing adjustment described
in the following pages.
W1046371
Turning torque of
spiral bevel pinion
shaft only
Factory spec.
1.5 to 2.0 N·m
0.15 to 0.20 kgf·m
1.1 to 1.4 lbf·ft
Tightening torque Staking nut
275 to 343 N·m
28 to 35 kgf·m
203 to 253 lbf·ft
(1) Collar 1
(2) Staking Nut
(3) Bevel Gear Shaft (4) Groove for Lubrication
(5) Groove for Staking Nut
KiSC issued 06, 2007 A