Scania Central gear RP832-RBP832. Manual - part 21

 

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Scania Central gear RP832-RBP832. Manual - part 21

 

 

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81

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

82

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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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83

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

84

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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

 

 

 

 

 

 

 

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