wsm ME8200, Workshop Manual

Page: 331 / 543

6-S18
ME8200, ME9000, WSM FRONT AXLE
Backlash of Bevel Gear in Bevel Gear 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.
4. If the backlash exceeds the allowable limit, adjust with the shims
(1).
(Reference)
• Thickness of adjusting shim (1):
• Backlash changer per 0.1 mm (0.004 in.) shim :
Approx. 0.04 mm (0.015 in.).
W1059635
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.
W1073771
Backlash = Play x 2
Backlash of bevel gear
in bevel gear case
Factory spec.
0.20 to 0.30 mm
0.0079 to 0.0118 in.
Allowable limit
0.4 mm
0.016 in.
0.1 mm (0.004 in.) 0.8 mm (0.031 in.)
0.2 mm (0.008 in.) 1.0 mm (0.039 in.)
0.4 mm (0.012 in.) 1.2 mm (0.047 in.)
(1) Shim
Clearance between
planetary gear and shaft
Factory spec.
0.009 to 0.046 mm
0.00035 to 0.00181 in.
Allowable limit
0.3 mm
0.012 in.
Planetary gear I.D. Factory spec.
33.009 to 33.025 mm
1.29957 to 1.30020 in.
Shaft O.D. Factory spec.
24.991 to 25.000 mm
0.98390 to 0.98425 in.
Needle O.D. Factory spec.
3.994 to 4.000 mm
0.15724 to 0.15748 in.
KiSC issued 03, 2007 A