397819 Removing and Installing Servo Motor on Transfer Gear
WM 397819 Removing and installing servo motor on transfer gear
Technical values
Removing servo motor on transfer gear
Overview of servo motor
1. Before beginning to work on the servo motor for the transfer box, engage the Low Range offroad driving program.
2. Disconnect Low Range cable plug -arrow- on the servo motor and loosen cable holder -A-.
Low Range cable plug
3. Pull centre-differential lock cable plug -arrow- off the servo motor.
Centre-differential lock cable plug
4. Unscrew servo motor threaded joint on the transfer box.
Threaded joint for servo motor
5. Remove servo motor with holder.
Installing servo motor on transfer gear
Overview of servo motor
CAUTION
Servo motor not fitted correctly
- Risk of damage to servo motor electronics
- Servo motor is sluggish
-> Fit servo motor by hand.
-> Do not use impact tools or strikers, e.g. a hammer.
Information
- If a new servo motor is to be installed, it will be supplied in Low Range setting, off-road driving programme.
- If a new servo motor is installed, the transfer gear control unit must be replaced. => 391319 Removing and installing transfer gear control unit
1. Connect the servo motor to the shaft on the transfer gear. Position the cut-out on the shaft -right inset- in line with the servo motor -left inset-.
Positioning the servo motor
2. Screw in servo motor screws -arrows- on the transfer gear. => Tightening torque: 27 Nm (20 ftlb.)
3. Screw in threaded joint for servo motor support -arrows- on the transfer gear. => Tightening torque: 10 Nm (7.5 ftlb.)
Threaded joint for servo motor
4. Connect centre-differential lock cable plug -2- , Low Range -1- and secure cable holder.
Cable plug for servo motor
Subsequent work for servo motor
Information
- If a new servo motor is to be installed, it will be supplied in Low Range setting, off-road driving programme.
- If a new servo motor is installed, the transfer gear control unit must be replaced. => 391319 Removing and installing transfer gear control unit
1. Install a new transfer gear control unit. => 391319 Removing and installing transfer gear control unit