Kubota M5040, Workshop Manual

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2-S28
M5040, M6040, M7040, WSM CLUTCH
Checking Pressure Plate Assembly and Flywheel
1. Wash the disassembling parts except clutch disc with a suitable
cleaning solvent to remove dirt and grease before making
inspection and adjustment.
2. Inspect the friction surface of pressure plate and flywheel for
scoring or roughness.
- Slight roughness may be smoothed by using fine emery cloth.
- If these parts have deep scores or grooves on their surface,
they should be replaced.
3. Inspect the surface of diaphragm spring for wear.
If excessive wear is found, replace the clutch cover assembly.
W1015894
Release Bearing
1. Check for abnormal wear on contact surface.
2. Rotate bearing outer race, while applying pressure to it.
3. If the bearing rotation is rough or noisy, replace the release
bearing (1).
NOTE
Q
• Do not depress bearing outer race, when replacing release
bearing.
• Do not wash the release bearing with a cleaning solvent.
W1015573
[3] PTO CLUTCH PACK
PTO Clutch Disc Wear
1. Measure the thickness of PTO clutch disc with vernier calipers.
2. If the thickness is less than the allowable limit, replace it.
W1024926
PTO Steel Plate Wear
1. Measure the thickness of PTO steel plate with vernier calipers.
2. If the thickness is less than the allowable limit, replace it.
W1025021
Diaphragm spring
mutual difference
Allowable limit
0.5 mm
0.020 in.
(1) Release Bearing
Thickness of PTO clutch
disc
Factory spec.
2.5 to 2.7 mm
0.098 to 0.106 in.
Allowable limit
2.1 mm
0.083 in.
Thickness of PTO steel
plate
Factory spec.
1.93 to 2.07 mm
0.076 to 0.081 in.
Allowable limit
1.80 mm
0.071 in.
KiSC issued 06, 2008 A