Mechanical drive gear unit – 2550

Replacing the drive shaft gasket

10.3.2 Assembling

Assembly of the transmission after replacing the drive shaft's sealing ring is carried out in the reverse order.

Bearing in mind the following when assembling.

•Fill the sealing ring with grease after fitting it on the drive shaft.

•Ensure only undamaged spacer washers with the same overall thickness as the original washers are placed on the drive shaft.

•Press the bearing on the drive shaft and make sure the bearing's spacer washers are not damaged.

•When the drive shaft with the bearing, spacer washers and seal is fitted, ensure that the shaft keyways correspond with the crown gear's keys and that the bearing and seal sit correctly in the gear housing before the axle is fully pressed in.

•Place the distance ring on the end of the drive shaft, and fit the shaft nut. Always use a new nut. Tighten the axle nut to a torque of 400 Nm and lock with a centre punch mark in the centre. The drive shaft nut should be lubricated before it is placed on the shaft.

•Replace the O-ring before installing the lower cowl. Make sure it is not damaged. Mount 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.

Mount the drive wheel and tighten the wheel bolts to a torque of 90 Nm. The bolts should be greased before assembly.