AR35.30-D-4815-07A | Measure basic dimension at rear axle housing and determine thickness of shim for correcting basic dimension | Rear axle 741.130/131/40/43/ 52/530/540/55 | |
Measure difference dimension of drive pinion |
Test and adjustment values for rear axle drive
Number | Designation | Rear axle 741.40/43 | Rear axle 741.130/131 | Rear axle 741.52/53/ 54/55 | ||
BE35.30-N-1004-01B | Specified basic dimension for rear axle housing | mm | 66 | 66 | 66 | |
See picture in | ||||||
601 589 00 21 00
001 589 53 21 00
Dial indicator
Adjustment device
601 589 01 23 00
Measuring piece
460 589 03 63 00
Ring
D35.30-0006-01
A Measure production tolerance of axle housing
1 Screw the measuring pin (included with the adjustment device) into the dial indicator (3, ).
2 Press spacer (4, ) firmly onto adjustment device and set dial indicator with
2 mm preload.
3 Set dial indicator to zero.
This sets the adjustment device (1, ) to the specified basic dimension.
D35.30-0007-01
4 Insert measuring piece (2, ) into rear axle housing.
5 Insert adjustment device (1, ) into rear axle housing and turn gently back and forth to determine the maximum height of the measuring pin (vertical position).
6 Measure production difference in relation to specified basic dimension.
If necessary on rear axles with differential lock, also push the
spacer ring () onto the left-hand side of the adjustment device.
If the dimension deviates towards the center of the ring gear (dial indicator indicates more than 2 mm), subtract this difference from the difference dimension of the drive pinion.
If the dimension deviates towards the drive pinion (dial indicator indicates less than 2 mm), add this difference to the difference dimension of the drive pinion.
The difference dimension determined in this way corresponds to the thickness of the shim.
D35.30-0008-01
B Deviation from specified basic dimension (lapped gear sets only)
The difference between the specified basic dimension and the basic dimension engraved on the ring gear must be added to or deducted from the dimension difference of the drive pinion.
Example:
Specified basic dimension 66.00 mm
Dimension engraved on ring gear 66.02 mm
Difference dimension (to be deducted from difference dimension of drive pinion) - 0.02 mm
If the dimension engraved on the ring gear is e.g. 65.96 mm, 0.04 mm must be added to the dimension.
Examples for calculating the thickness of the shim with
lapped gear sets
Example 1:
Basic dimension 66.00 mm
Dimension engraved on ring gear - 66.02 mm
Deviation from basic dimension - 0.02 mm
Difference dimension of drive pinion 5.18 mm
Deviation from basic dimension - 0.02 mm
Production deviation of rear axle housing
(towards ring gear) - 0.06 mm
Shim to be installed 5.10 mm
Example 2:
Basic dimension 66.00 mm
Dimension engraved on ring gear - 65.96 mm
Deviation from basic dimension + 0.04 mm
Difference dimension of drive pinion 5.36 mm
Deviation from basic dimension + 0.04 mm
Production deviation of rear axle housing
(towards drive pinion) + 0.02 mm
Shim to be installed 5.42 mm
Examples for calculating the thickness of the shim with
ground gear sets
Example 1:
Difference dimension of drive pinion 5.18 mm
Production deviation of rear axle housing
(towards ring gear) - 0.06 mm
Shim to be installed 5.12 mm
Example 2:
Difference dimension of drive pinion 5.36 mm
Production deviation of rear axle housing
(towards drive pinion) + 0.02 mm
Shim to be installed 5.38 mm
The shims are available in thicknesses from 5.00 mm to 5.68 mm in graduations of 0.002 mm.