Kubota M9540, Workshop Manual, Page: 217 / 619

2-S10
M8540, M9540, WSM CLUTCH
6. SERVICING
[1] 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
Flatness of PTO Piston and PTO Steel Plate
1. Place the part on a surface plate.
2. Try to insert a feeler gauge (allowable limit size) underneath it at
least four points.
3. If the gauge can be inserted, replace it.
W1025149
Plate
1. Check the contact surface to belleville washer (cupped spring
washer).
2. If the back plate has deformed or is scratched and/or scared,
replace it.
W1026255
Piston Return Spring Free Length
1. Measure the free length of spring with vernier calipers.
2. If the measurement is less than the allowable limit, replace it.
W1025269
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.
Flatness of PTO piston Allowable limit
0.15 mm
0.006 in.
Flatness of PTO steel
plate
Allowable limit
0.30 mm
0.012 in.
PTO return spring free
length
Factory spec.
46.0 mm
1.811 in.
Allowable limit
37.5 mm
1.48 in.
KiSC issued 09, 2008 A