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. Drain the brake fluid.
2. Remove the rear suspension height sensor (1).
3. Disconnect the brake pipe connection (2).
4. Remove the clamp (3).
5. Loosen the connecting bolt of the rear wheel speed sensor and the upper suspension arm (4).
6. Remove the limiter (5).
7. Disconnect the stabilizer bar and upper arm connection (6).
8. Remove the pin (7).
9. Disconnect the connection of the ball joint of the upper arm and the steering knuckle (8).
Caution: Use a special tool to loosen the nut. The nut should be loosened, but not completely removed. To prevent the puller from slipping off, it is necessary to first tie it with a cord or wire.
10. Remove the upper arm (9).
11. Remove the upper arm ball joint (10).
Installing the upper control arm assembly
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Note: When installing, tighten the bolts to the torques shown in the figure.
1. Install the upper arm ball joint (10).
2. Install the upper arm (9).
3. Connect the upper arm ball joint and steering knuckle (8).
4. Install the pin (7).
5. Connect the stabilizer bar and upper arm joint (6).
6. Install the limiter (5).
7. Tighten the connecting bolt of the rear wheel speed sensor and the upper suspension arm (4).
8. Install the clamp (3).
9. Connect the brake pipe connection (2).
10. Install the rear suspension height sensor (1).
11. Check the boot for scratches and damage.
12. Fill with brake fluid and bleed the system.
13. 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: 1.47-7.84 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.