Kubota WSM STa-30, Workshop Manual

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6-S14
ST
α
-30 · ST
α
-35, WSM FRONT AXLE
More than 35 % red lead contact area on the gear tooth surface.
The center of tooth contact at 1/3 of the entire width from the
small end.
W1018747
Replace the adjusting collars (3), (4) to move the bevel pinion
shaft toward inside, and repeat above until the proper backlash and
tooth contact are achieved.
For adjusting the tip contact, replace the shim (5) with a thinner
one and repeat this procedure until the proper tip contact is
achieved.
If the backlash is small, replace the shim (5) with a thicker one
and repeat this procedure until the proper backlash is achieved.
Confirm the backlash and tooth contact again. Repeat above
until the proper backlash and tooth contact are achieved.
W1018900
Replace the adjusting collars (3), (4) to move the bevel pinion
shaft toward inside, and repeat above until the proper backlash and
tooth contact are achieved.
For adjusting the base contact, replace the shim (5) with a thinner
one until the proper backlash is achieved.
Confirm the backlash and tooth contact again. Repeat above
using the shim (5) and adjusting collars (3), (4) until the proper tooth
contact is achieved.
W1018973
Backlash between 11T Bevel Gear and 16T Bevel Gear
1. Stick a strip of fuse to three spots on the 16T bevel gear (1) with
grease.
2. Install the 11T bevel gear (2) and shim (3).
3. Turn the axle.
4. Remove the 11T bevel gear (2) and measure the thickness of the
fuses with an outside micrometer.
5. If the backlash is not within the factory specification, adjust with
shim (3).
(Reference)
• Thickness of adjusting shims (3) :
0.8 mm (0.031 in.) 1.2 mm (0.047 in.)
1.0 mm (0.039 in.)
W1019038
(A) Proper Contact
(B) Shallow Contact (C) Heel Contact
(D) Deep Contact (E) Toe Contact
Backlash between 11T
bevel gear and 16T
bevel gear
Factory spec.
0.15 to 0.35 mm
0.0059 to 0.0138 in.
(1) 16T Bevel Gear
(2) 11T Bevel Gear (3) Shim
KiSC issued 11, 2006 A