Scania Central gear RP832-RBP832. Manual — part 21

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11 Weld a few beads on the inner bearing ring

with an electric welder. Cool with a wet rag
after each weld.

12 Remove the inner bearing ring once it splits.

It will break through shrinkage after
4-5 welds.

110

778

Gear housing RP832

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Assembly

1

Press the rear pinion bearing inner ring 5
onto the pinion using drift 87 550 and drift
99 092.

2

Press the front pinion bearing outer ring 8
into the housing using drift 98 566 and
shank 98 450.

3

Turn over the housing and place it on the
press bench, for example. There must be a
hole for the pinion.

4

Place the shims 4 that were earlier fitted in
the housing into the rear pinion bearing seat.

5

Fit setting ring 98 779 instead of the rear
pinion bearing outer ring. This has a slightly
smaller outer diameter, which makes it
easier to change the number of washers.

6

There is a two-digit number painted on the
pinion. This is the deviation measurement A
given in hundredths of a mm. The pinion
setting dimension is 0.50 + A +/- 0.05 mm.

111 105

Deviation measurement

Gear housing RP832

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7

Lubricate the running surface of the ring
with oil. Fit the pinion and rotate it a few
turns so the rollers take their correct
positions.

8

Place the pinion position template 99 072 in
the bottom of the differential bearing seat.
Make sure the template is vertical and
parallel to the centre line of the differential.
Hold down the template lightly so it does
not wobble during measuring.

9

Measure the setting dimension of the pinion
with a feeler gauge between the end plane of
the pinion and the template. The setting
dimension must be 1.03 - 1.13 mm.

Example: The number 58 is on the pinion.
This gives a setting dimension of
0.50 + 0.58=1.08.

10 Adjust if necessary by changing shims

between the pinion bearing housing and the
gear housing.

Shims are available in thickness 0.25, 0.30
and 0.40 mm.

Gear housing RP832

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11 Remove the pinion and the setting ring.

Press in the outer bearing ring belonging to
the bearing using support ring 98 613, drift
98 566 and shank 98 450.

12 Place the pinion on support drift 98 332,

drift 99 253 and assembly drift 98 364.

13 Insert the spacing ring 6 and the shims 7 that

were removed during dismantling. Place the
dummy bearing 98 570 in the front pinion
bearing position.

14 Use drift 87 932 to press together the

bearing with max. 70-80 kN. Rotate the gear
housing at the same time. Stop pressing if
the gear housing becomes difficult to rotate
and change to a thicker shim or longer
spacing ring.

15 Attach a dynamometer to the gear housing

in the hole closest to the differential lock
operation. Measure the force required to
rotate the gear housing.

The bearing preload is correct when the
rolling resistance measured with the
dynamometer is 8-14 N with worn bearings
and 25-45 N with new bearings at a press
force of 70-80 kN.

Shims are available in thickness 0.30, 0.40
and 0.50 mm.

Spacing rings are available in lengths 22.48,
22.50, 22.52, 22.54 and 22.56 mm.

Shims are available in thickness 0.25, 0.30
and 0.40 mm. Spacing rings are available in
lengths 11.00, 11.02, 11.04, 11.06 and
11.08 mm.

Gear housing RP832