T-code Valid from serial number
403-414, 669-671, 716-718 713962-
Date Order number
2005-06-01 218920-040
13-  10 Service Manual  REFLEX  RR B/E, RR B/E CC © BT Europe AB
Mechanical drive gear unit – 2550
Repairs
Assembling
Follow the instructions below when assembling after replacing the drive 
shaft sealing ring.
• Insert the drive shaft's outer bearing (1) into place in the transmis-
sion housing.
• Push the new sealing ring into the transmission housing. Be careful 
when pushing in the sealing ring to seat it properly in position.
• Place the axle bearing’s spacer washers on the drive shaft, building 
the same total thickness as the original ones. Ensure only undam
-
aged spacer washers are used.
• Press the drive shaft , with the spacer washers, into the transmis-
sion.  
Check that the drive shaft splines correspond with the splines in the 
crown wheel.
• Place the distance ring on the end of the drive shaft, and put the 
shaft nut into position. 
 
Always use a new nut. The drive shaft nut should be oiled before it 
is placed on the shaft.
 
Tighten the nut to a torque of 700 Nm and lock it in place by centre 
punching the keyway in the shaft.
• Replace the O-ring before installing the lower cowl. Make sure it is 
not damaged. Fit the cowl and tighten the bolts to a torque of 25 Nm. 
The bolts should be greased before assembly.
• Fill with oil as set out in the instructions for refilling.
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