Valid from serial number T-code
713962- 403-414, 669-671, 716-718
Order number Date
218920-040 2005-06-01
© BT Europe AB Service Manual  REFLEX RR B/E, RR B/E CC 13-  7
Mechanical drive gear unit – 2550
Replacing the drive motor/drive transmission
• Screw in the centred steering indicator (8) so that it bottoms on the 
edge. Then turn it back 1 1/2 turns and lock it in place with a lock nut.
• Screw in the steering wheel direction indicator (9) (red indicator di-
odes towards the battery compartment) until it stops, then turn it 
back 1 1/4 turns and lock it in place with a lock nut.
13.3.5 Installing the drive motor
If you replaced the drive transmission (17), also replace the gear wheel 
(51) on the drive motor.
If you replaced the drive motor, use the old gear wheel on the new 
motor.
13.3.6 Assembling the gear wheel
• Replace the bearing cage (29) on the motor axle.
• Fit the circlip (27).
• Fit the key (7).
• Replace the gear wheel (51).
• Fit a new nut (54).
• Use tool 10-15639 and tighten to a torque of 60 Nm.
• Lock the nut with a centre punch in the keyway.
• Attach a lifting eye to the motor axle and lift into the transmission us-
ing an overhead crane.
NOTE!
Risk of damaging the gear wheel (A).
The gear wheel on the end of the motor is easily damaged.
Carefully lift in the motor.
• Secure the motor (61) in the transmission with a torque of 20 Nm.
• Reconnect the temperature, braking, and the speed measurement 
contacts (14, 31) and power cables (60) to the motor.
• Remove the lifting eye bolt.
• Brake adjustment, see C-code 3100.
54
62
51
29
27
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