Kubota M108S, Workshop Manual

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8-S19
M108S, WSM HYDRAULIC SYSTEM
[3] SERVICING
(1) Hydraulic Pump
Housing Bore
1. Measure the housing I.D. where the interior surface is not
scratched, and measure the housing I.D. where the interior
surface is scratched.
2. If the values obtained in the two determinations differ by more
than the allowable limit, replace the hydraulic pump as a unit.
(Reference)
• Use a cylinder gauge to measure the housing I.D..
W1046268
Clearance between Bushing and Gear Shaft
1. Measure the gear shaft O.D. with an outside micrometer.
2. Measure the bushing I.D. with an inside micrometer, and
calculate the clearance.
3. If the clearance exceeds the allowable limit, replace the gear
shaft and the bushing as a unit.
W1046756
(2) Three-Point Hitch Cylinder
Hydraulic Cylinder Bore
1. Check the cylinder internal surface for scoring or damage.
2. Measure the cylinder I.D. with a cylinder gauge.
3. If the measurement exceeds the allowable limit, replace it.
W1047035
Depth of scratch Allowable limit
0.09 mm
0.004 in.
Clearance between
bushing and gear shaft
Allowable limit
0.15 mm
0.0059 in.
Cylinder I.D.
Factory spec.
100.036 to 100.071 mm
3.93843 to 3.93980 in.
Allowable limit
100.15 mm
3.9429 in.
KiSC issued 06, 2007 A