Kubota ME8200DTN, Workshop Manual Supplement

Page: 112 / 192

ME8200DTN, WSM REAR AXLE
N4-S7
[2] SERVICING
Backlash between Internal Gear and Planetary Gear
1. Set a dial indicator (lever type) on the tooth of the planetary
gear.
2. Hold the planetary gear support and move only the planetary
gear to measure the backlash.
3. If the measurement exceeds the allowable limit, check the
planetary gear and planetary shaft.
Thrust Collar Thickness
1. Measure the thickness of the thrust collar.
2. If the measurement is less than the allowable limit, replace it.
Clearance between Planetary Gear and Planetary Gear Shaft
1. Measure the planetary gear shaft O.D. (rubbing surface).
2. Measure planetary gear I.D. (rubbing surface).
3. Measure the O.D. of the two needles installed diagonally in the
needle bearing.
4. Calculate the clearance.
5. (Clearance = Planetary gear I.D. - {(2 x Needle O.D.) +
Planetary gear shaft O.D.}).
6. If the clearance exceeds the allowable limit, replace them.
Backlash between
internal gear and
planetary gear
Factory spec.
0.08 to 0.30 mm
0.0032 to 0.0118 in.
Allowable limit
0.5 mm
0.020 in.
0000002435E
Thrust collar thickness
Factory spec.
1.55 to 1.65 mm
0.0610 to 0.0650 in.
Allowable limit
1.2 mm
0.047 in.
0000002436E
Clearance between
planetary gear and
planetary gear shaft
Factory spec.
0.009 to 0.048 mm
0.00035 to 0.00189 in.
Allowable limit
0.30 mm
0.0118 in.
Planetary gear shaft
O.D.
Factory spec.
31.989 to 32.000 mm
1.25941 to 1.25984 in.
Planetary gear I.D. Factory spec.
39.000 to 39.025 mm
1.53543 to 1.53641 in.
Needle O.D. Factory spec.
3.494 to 3.500 mm
0.13756 to 0.13780 in.
0000002437E
KiSC issued 04, 2006 A