Required special tool
- Emb. 880 Inertial puller.
- Rou. 943 Hub cap puller.
Tightening torques, Nm
- Wheel bolts 90.
- Hub nut 175.
Examination
Check the axial clearance of the bearing by installing the indicator foot on the brake drum: 0-0.03 mm (maximum allowable).
Removing
1. Remove the hub cap using Rou pullers. 943 and Emb. 880.
2. Remove the brake drum.
3. Remove from the brake drum:
- retaining ring;
- hub bearing using a piece of pipe.
Installation
1. Using a piece of pipe and a press, press the bearing into the hub shoulder as far as it will go.
2. Install a new retaining ring.
3. Install the brake drum onto the pre-lubricated hub trunnion.
4. New hub nut and tighten to the correct torque.
5. Install the hub cap.
5. Adjust the position of the brake shoes by depressing the brake pedal repeatedly.
6. Adjust the parking brake.