Trailing Arm: Service and Repair

REMOVAL AND INSTALLATION

CAUTION:
^ During maintenance, take care not to contact the parts or tools to the caliper, because the paint of caliper will be scratched. And if there is brake fluid on the caliper, wipe out quickly.
^ : To prevent bushings from breakage, the parts indicated by should be temporarily tightened, and then fully tightened with the vehicle on the ground in the unladen condition.

REMOVAL SERVICE POINT
[[A]] TRAILING ARM ASSEMBLY AND KNUCKLE DISCONNECTION

CAUTION:
^ Do not remove the nut from ball joint. Loosen it and use special tool MB991897 to avoid possible damage to ball joint threads.
^ Hang special tool MB991897 with a cord to prevent it from falling.





1. Install the special tool MB991897 as shown in the figure.





2. Turn the bolt and knob as necessary to make the jaws of the special tool MB991897 parallel, tighten the bolt by hand and confirm that the jaws are still parallel.

NOTE: When adjusting the jaws in parallel, make sure the knob is in the position shown in the figure.

3. Tighten the bolt with a wrench to disconnect the trailing arm assembly and the knuckle.

INSPECTION
TRAILING ARM BALL JOINT TURNING TORQUE CHECK

Required Special Tool:
^ MB990326: Preload Socket





1. After shaking the trailing arm ball joint stud several times, use special tool MB990326 to measure the turning torque of the trailing arm ball joint.
Standard value: 0.5 - 2.5 Nm (4.4 - 22 inch lbs.)
2. When the measured value exceeds the standard value, replace the trailing arm assembly.
3. When the measured value is lower than the standard value, check that the trailing arm ball joint turns smoothly without excessive play. If there is no excessive play, the ball joint can be reused.

TRAILING ARM BALL JOINT DUST COVER CHECK
1. Check the dust cover for cracks or damage by pushing it with your finger.
2. If the dust cover is cracked or damaged, replace the trailing arm assembly.

NOTE: Cracks or damage to the dust cover may cause damage to the ball joint. When it is damaged during service work, replace the dust cover.

TRAILING ARM BALL JOINT DUST COVER REPLACEMENT

Required Special Tool:
^ MB990800: Ball Joint Remover and Installer





Only when the dust cover is damaged accidentally during service work, replace the dust cover as follows:
1. Remove the dust cover.
2. Fill the multipurpose grease in the dust cover and lubricate the lip [Amount of filling grease in the dust cover: approximately 7 g (0.247 ounce)].
3. Using special tool MB990800, punch the dust cover until it contacts the snap ring.
4. Press the dust cover with your finger to check that there are no cracks or damage in the dust cover.