Kubota M108S, Workshop Manual

Page: 287 / 523

3-S41
M108S, WSM TRANSMISSION
[4] DUAL SPEED CLUTCH
Clearance between Internal Snap Ring and Pressure Plate
1. Measure the clearance between internal snap ring and pressure
plate with a feeler gauge while applying the specified force.
Specified force: 177 to 294 N (18.0 to 30.0 kgf, 39.7 to 66.1 lbf).
2. Three points are measured, and the smallest value is assumed
to be clearance.
3. If the clearance exceeds the allowable limit, measure the
thickness of clutch disc and steel plate with vernier calipers.
4. If the thickness is less than the allowable limit, replace them.
5. Remeasure to confirm the correct clearance.
NOTE
■
• Clearance between internal snap ring and pressure plate is
adjusted by two kinds of steel plates with different
thickness. Therefore, use the one of the same thickness
when you change steel plate.
(Reference)
• There are two kinds of thickness of steel plates.
• Thickness of plate, disc and piston
W1044863
Clearance between
internal snap ring and
pressure plate
(LO and HI side)
Factory spec.
2.0 to 2.2 mm
0.079 to 0.087 in.
Allowable limit
3.5 mm
0.14 in.
Steel plate
3F750-
28542
Factory spec.
1.35 to 1.45 mm
0.0532 to 0.0570 in.
3F750-
28522
Factory spec.
1.55 to 1.65 mm
0.0611 to 0.0649 in.
Pressure plate Factory spec.
3.92 to 4.08 mm
0.155 to 0.160 in.
Clutch disc Factory spec.
2.12 to 2.28 mm
0.0835 to 0.0897 in.
Piston Factory spec.
9.9 to 10.1 mm
0.390 to 0.397 in.
KiSC issued 06, 2007 A