001 589 53 21 00
Dial gage
906 589 01 21 00
Adjusting device
P35.31-2263-09
Measure production difference of rear axle housing (1) to specified basic dimension
The special tool adjustment device contains the tools required for the measurement: Gauge slide (01), adjusting gauge (03), gauge block A (04), gauge block B (05)
A positive or a negative values is then returned as the result.
1 | Mount gauge slide (01) an onto dial indicator (02). |
2 | Fit adjusting gauge (03) flush to face of gauge block A (04). |
Depending on the ring gear diameter (Ø 215 mm or Ø 245 mm) use the accordingly marked adjusting gauge (03). |
3 | Insert dial indicator (02) into gauge block A (04) and set a pretension of 14 mm (Ø 215 mm) or 4 mm (Ø 245 mm). |
Depending on the ring gear diameter (Ø 215 mm or Ø 245 mm), use relevant gauge block A (04) (168.5 mm or 198.5 mm). |
4 | Set outer scale of dial indicator (02) to 0. |
P35.31-2267-09
5 | Insert gauge block B (05) into rear axle housing (1). |
6 | Insert gauge block A (04) with dial indicator (02) into rear axle housing (1). |
Depending on the ring gear diameter (Ø 215 mm or Ø 245 mm), the gauge slide (01) of the dial indicator (02) must be brought into contact with the marked measuring surface of the gauge block B (05). |
7 | By turning the gauge block A (04) to and fro (arrow) in the bearing supports of the rear axle housing (1), determine the vertical position. |
The vertical position between the dial indicator (02) and the gauge block B (05) is reached, when the dial indicator (02) shows the maximum measurement value. |
8 | Read off measurement value in vertical position from dial indicator (02) and note down with corresponding sign (+, -). |
If, using the dial indicator (02), a value that is greater than the length of the adjusting gauge (03) ( dial indicator (02) shows more than 14 mm (Ø 215 mm) or 4 mm (Ø 245 mm)), the production tolerance must be subtracted from the thickness of the spacer washer; a negative sign (-) must be used. If, using the dial indicator (02), a value that is less than the length of the adjusting gauge (03) ( dial indicator (02) shows less than 14 mm (Ø 215 mm) or 4 mm (Ø 245 mm)), the production tolerance must be added to the thickness of the spacer washer; a positive sign (+) must be used. |
Example with negative value (ring gear diameter Ø 245 mm):
The dial indicator (02) shows a value of 5.01 mm. This corresponds to a production difference for the rear axle housing (1) of -1.01 mm.
Example with positive value (ring gear diameter Ø 245 mm):
The dial indicator (02) shows a value of 3.5 mm. This corresponds to a production difference for the rear axle housing (1) of +0.5 mm.
Determine deviation from specified basic dimension
9 | Determine and note deviation from specified basic dimension. |
To determine the deviation from the specified basic dimension, the basic dimension engraved on the ring gear should be subtracted from the specified basic dimension for the rear axle housing (1). A positive or a negative values is then returned as the result. |
Example with negative value:
66.00 mm (Specified basic dimension for rear axle housing (1))
-
66.09 mm (basic dimension engraved on ring gear)
=
-0.09 mm (deviation from specified basic dimension)
Example with positive value:
66.00 mm (Specified basic dimension for rear axle housing (1))
-
65.95 mm (basic dimension engraved onto ring gear)
=
+0.05 mm (deviation from specified basic dimension)
Calculation for determining thickness of spacer washer
To determine spacer washers to be installed, the calculation for the thickness of the spacer washer must be performed as in the following example.
The spacer washers are available in a thickness of 4.90 mm to 6.38 mm in graduations of 0.02 mm.
Example with negative values:
6.17 mm (difference dimension of drive pinion)
-0.09 mm (deviation from specified basic dimension)
-1.01 mm (production difference of rear axle housing (1))
=
5.07 mm (thickness of spacer washer)
Example with positive values:
5.17 mm (difference dimension of drive pinion)
+0.05 mm (deviation from specified basic dimension)
+0.5 mm (production difference of rear axle housing (1))
=
5.72 mm (thickness of spacer washer)