Contents: Removal the upper control arm…⤓ Installing the upper control arm…⤓ Checking the tightening torque of…⤓ Checking the protective boot of the…⤓ Replacing the protective cover of…⤓
Removal the upper control arm assembly
1. Remove the front suspension height sensor and upper arm connection (1).
2. Loosen the mounting bolt of the front wheel speed sensor bracket (2).
3. Remove the brake hose (3).
4. Remove the cotter pin (4).
5. Unscrew the connecting nut of the upper arm and steering knuckle joint (5).
6. Unscrew the upper arm mounting bolt (6).
7. Remove the upper arm assembly (7).
8. Unscrew the connecting bolt of the upper arm assembly and the front frame (8).
9. Remove the upper arm pivot assembly (9).
Installing the upper control arm assembly
Note: When installing, tighten the bolts to the torques shown in the figure.
1. Install the upper arm pivot assembly (9).
2. Tighten the connecting bolt of the upper arm assembly and the front frame (8).
3. Install the upper arm assembly (7).
4. Tighten the upper arm mounting bolt (6).
5. Tighten the connecting nut of the upper arm and steering knuckle joint (5).
6. Install the cotter pin (4).
7. Install the brake hose (3).
8. Tighten the mounting bolt of the front wheel speed sensor bracket (2).
9. Install the front suspension height sensor and upper arm connection (1).
10. Check the boot for scratches and damage.
11. Check and adjust wheel alignment angles.
Checking the tightening torque of the upper arm ball joint
1. Rock the ball joint pin several times, install the nut on the pin and, using a special tool, measure the moment the ball joint starts to rotate.
Nominal value: 0.4-5.6 Nm.
2. If the measured value exceeds the standard value, replace the upper arm assembly.
3. If the measured value is less than the nominal value, check the ease of movement of the pin in the ball joint. If the pin does not stick and there is no excessive play, then using such a ball joint (ball joint) allowed.
Checking the protective boot of the upper arm ball joint
1. Check the protective cover for cracks or damage by pressing on it with your finger.
2. If the protective cover is cracked or damaged, replace the upper arm assembly.
Note: Cracks or damage to the protective boot may cause damage to the ball joint. If the protective cover is damaged during maintenance work, replace the protective cover.
Replacing the protective cover of the upper arm ball joint
Replace the protective cover only if it is accidentally damaged during maintenance work as follows:
- 1. Remove the protective cover.
- 2. Apply multi-purpose grease to the edge and inside the protective boot.
- 3. Put on the protective cover using a special tool until it is completely in place.
- 4. Check the protective cover for cracks or damage by pressing on it with your finger.