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Removal, check and installation of the lower arm
| Fig. 4.27. Components of the lower arm front suspension
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Withdrawal Remove the front wheel. Loosen the bolt ball joint lower control arm to the steering knuckle. Remove the three screws on the lower control arm to the subframe.
Setting Installation is the reverse order of removal.
Dismantling
| Fig. 4.28. Remove the lower control arm bushings
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| Fig. 4.29. Removing the protective cover ball joint lower control arm
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Using a flat screwdriver, remove the protective cover ball joint lower control arm (Fig. 4.29). Remove the retaining ring.
| Fig. 4.30. Remove the ball joint of the lower arm assembly
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Using a plastic hammer, remove the ball joint of the lower arm assembly (Fig. 4.30).
Check Check the bushing for wear and deformation. Check the lower arm to the absence of bends and other damages. Check the dust cover ball joint for cracks. If a protective case is cracked, replace the ball joint assembly. Check the connecting bolt of the lower control arm. Several times shake a finger of a spherical support of the lower arm to check attenuation.
| Fig. 4.31. Measuring torque pin of the ball joint of the lower arm
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Check the torque of the finger of a spherical support of the lower arm (Fig. 4.31). Rated torque: 1.5-3.5 Nm. If the torque exceeds the nominal point the finger, replace the ball joint assembly. If the torque is less than the rated torque of the finger, the ball bearing can be used further if there is no damage.
| Fig. 4.32. Check the torque of the ball joint stabilizer bar
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Check the starting torque of the ball joint stabilizer bar (Fig. 4.32). In the presence of cracks or breaks a protective cover of a ball joint, replace it and add grease in the ball joint. Several times shake a finger ball joint stabilizer bar to check attenuation. Samokontyaschuyusya Screw the nut on the finger of a spherical support and measure the starting torque. Rated Torque: 0,7-2,0 Nm. If the torque exceeds the nominal point the finger, replace the stabilizer bar. If the torque is less than the rated torque of the finger, the ball bearing can be used further if there is excessive wear or cracks.
Assembly Using a special tool, press-fit the lower arm bushing.
NOTE Nominal force for pressing the sleeve: 50 H |
| Fig. 4.33. Driving finger pressing the ball joint
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Hold your finger ball joint, press in the finger in the lower control arm bushing (Fig. 4.33).
NOTE Do not press-fit the protective cover of the ball joint. |
Using pliers, install the snap ring.
| Fig. 4.34. Driving lubrication on the inner edge of the protective cover
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Lubricate the inner edge of the dust cover and the inside of the protective cover (Fig. 4.34). Grease: Sunlight MB-2 or equivalent.
| Fig. 4.35. The scheme of installation of a protective cover
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Using a special tool, install a protective cover in place and secure the locking ring (Fig. 4.35).
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