FRONT AXLE
M6060, M7060, WSM
5-S21
Backlash of Bevel Gear in Front Wheel Case
1. Set a dial indicator (lever type) on the shaft (Kingpin).
2. Move the shaft (Kingpin) by hand and measure the
circumferential play of the shaft.
3. Calculate the backlash from the ratio of the shaft diameter to the
gear diameter. (Backlash = Play × 2)
4. If the backlash exceeds the allowable limit, adjust with the shims
(1).
(Reference)
• Thickness of adjusting shims (1) :
0.1 mm (0.004 in.) [Code No.: 35533-44080]
0.2 mm (0.008 in.) [Code No.: 35533-44090]
0.4 mm (0.016 in.) [Code No.: 35533-44100]
0.8 mm (0.032 in.) [Code No.: 35533-44110]
1.0 mm (0.039 in.) [Code No.: 35533-44120]
1.2 mm (0.047 in.) [Code No.: 35533-44130]
• Standard size of shim (1) : 2.0 mm (0.079 in.)
9Y1210828FAS0035US0
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.
3. If the measurement exceeds the allowable limit, check the
planetary gear and planetary shaft.
9Y1210828FAS0036US0
Clearance between Planetary Gear and Shaft
1. Measure the planetary gear I.D. and the planetary gear shaft
O.D. (rubbing surface).
2. Measure the O.D. of two needles installed diagonally in the
needle bearing.
3. Calculate the clearance.
4. If the clearance exceeds the allowable limit, replace them.
9Y1210828FAS0037US0
Backlash of bevel gear in
front wheel case
Factory specification
0.20 to 0.30 mm
0.0079 to 0.011 in.
Allowable limit
0.4 mm
0.02 in.
(1) Shim
Backlash between
internal gear and
planetary gear
Factory specification
0.10 to 0.30 mm
0.0040 to 0.011 in.
Allowable limit
0.5 mm
0.02 in.
Clearance between
planetary gear and shaft
Factory specification
0.0090 to 0.046 mm
0.00036 to 0.0018 in.
Allowable limit
0.3 mm
0.01 in.
Planetary gear I.D. Factory specification
33.009 to 33.025 mm
1.2993 to 1.3001 in.
Shaft O.D. Factory specification
24.991 to 25.000 mm
0.98390 to 0.98425 in.
Needle bearing O.D. Factory specification
3.994 to 4.000 mm
0.1573 to 0.1574 in.
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