Scania Central gear RP832-RBP832. Manual - part 14

 

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Scania Central gear RP832-RBP832. Manual - part 14

 

 

08:04-02

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53

Assembly

1

Place the crownwheel 48 onto the 
differential housing half 52 and screw in 
two bolts 49 opposite each other.

2

Tighten the bolts alternately until the 
crownwheel abuts the differential housing 
half.

3

Fit the remaining bolts.

4

Mount the differential housing half in a 
press to prevent it from twisting when the 
crownwheel bolts are tightened. Use support 
ring 99 139 and drift 87 579. Press with
100-150 kN.

5

Tighten the crownwheel bolts. Tightening 
torque 1000 Nm.

Alternative tightening method:

Tighten the crownwheel bolts with a torque 
wrench to 300 Nm first. Mark the 
crownwheel at the socket and then tighten a 
further 40

°

. This will provide a clamping 

force corresponding to 1000 Nm.

40

°

 can be marked out on a socket in the 

following way.

Example:

Measure the diameter of the socket with a 
sliding caliper, e.g. 46 mm. Multiply with 
3.14 to obtain the circumference of the 
socket: 46 x 3.14 = 144 mm.

40

°

 is the same as one ninth of a revolution. 

Divide the circumference 144 mm by 9 to 
give 16 mm. Mark two lines on the 
circumference of the socket 16 mm apart.

Differential housing

54

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08:04-02

6

Fit a new lock washer 51 on the crownwheel 
bolts. Drive down the washer using drift 
98 574 over one bolt head at a time until the 
top of the washer is flush with the top of the 
bolt head.

7

Continue driving down the lock washer 
around each bolt head until the washer abuts 
the crownwheel.

8

Fit the retaining ring 50 with retaining ring 
pliers 587 311.

9

Place the differential housing on support 
ring 99 139 and press on the bearing with 
drift 98 364.

Differential housing

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55

IMPORTANT! The parts must not be mixed up 
when assembling. Assemble the differential 
housing according to the marks made earlier. If 
one part is damaged and needs to be renewed, 
all the other parts must be renewed as well.

10 Turn over the differential housing. Fit a 

bearing washer 53 with the guide collars in 
the holes, lubricate differential gear 57 with 
oil and insert it.

11 Lubricate the four differential pinions 55 

and the bearing washers 54 with oil and fit 
them onto the differential spider.

12 Fit the differential spider in the differential 

housing half.

13 Position the remaining differential gear on 

the differential pinions. Lubricate the gear 
and bearing surfaces with oil.

14 Secure the remaining bearing washer with 

grease in the other differential housing half 
and put together the two halves.

Differential housing

56

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08:04-02

15 Use drift 87 579 and clamp together the two 

halves in a press with 20-30 kN and tighten 
the bolts. Tightening torque 120 Nm.

16 Rotate one of the differential gears by 

turning a drive shaft and check that the 
differential pinions can rotate.

17 Press on the bearing with drift 87 932 and 

98 524.

Differential housing

 

 

 

 

 

 

 

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