Adjust gear backlash on differential assembly ring gear
Rear axle
743.451/458/480 in model 979.0
Rear axle
743.453/454 in model 979.27
Test and adjustment values of the differential set
Number
Designation
Rear axle 743.451/453/454/458
Rear axle 743.480
BE35.30-B-1004-04B
Crown and pinion backlash
mm
0,20...0,28
0,15...0,20
001 589 53 21 00
Dial gage
363 589 02 21 00
Dial indicator holder
312 589 04 07 00
Square drift
1
Assemble the gauge (2) in the bracket with magnetic base (1)
2
Attach the bracket (1) to the differential assembling housing flange
3
Turn the ring gear several times (3)
4
Thrust the feeler end of the gauge (2), with previous stress, in the ring gear flank and adjust the play screwing and unscrewing the threaded rings (4) with the squared spindle .
Measure the play of the teeth flanks in three distinct points in the ring gear.
