Disassembly and Assembly

DISASSEMBLY AND ASSEMBLY

DISASSEMBLY SERVICE POINTS
[[A]] SELF-LOCKING NUT REMOVAL

CAUTION:
^ Install the special tools evenly, and so that the maximum length will be attained within the installation range.
^ Do not use an impact wrench to tighten the bolt of the special tool MB991237, otherwise the special tool will break.





1. Use the special tools MB991237 and MB991238 to compress the coil spring.

WARNING: Do not use an impact wrench to remove the self-locking nut. Vibration of the impact wrench will cause the special tools MB991237 and MB991239 to slip and cause personal injury.





2. Use the special tools MB991681 and MB991682 to secure the strut, and then remove the self-locking nut.

[[B]] STRUT ASSEMBLY REMOVAL

WARNING: Wear goggles when drilling to protect your eyes from flying metal debris.





The gas must be discharged from the strut assembly before discarding it. Place the assembly horizontally with its piston rod extended. Then drill a hole of approximately 3 mm (0.1 inch) in diameter at the location shown in the illustration and discharge the gas.

ASSEMBLY SERVICE POINT
]]A[[ SELF-LOCKING NUT INSTALLATION
1. Ensure that the bearing is seated correctly.

CAUTION: Do not use an impact wrench to tighten the bolt of special tool MB991237, otherwise the special tool will break.





2. Install the special tools MB991237 and MB991238 to the strut assembly same as its removal.
3. While the coil spring is being compressed by the special tools, temporarily tighten the self-locking nut.





4. Align the hole in the strut assembly lower spring seat with the hole in the upper spring seat.

NOTE: Using a rod as shown facilitates the alignment.

5. Align both ends of the coil spring with the grooves in the spring seat, and then loosen the special tools.

CAUTION: Do not use an impact wrench to tighten the self-locking nut, otherwise the self-locking nut will be damaged.





6. Using the special tools MB991681 and MB991682, tighten the self-locking nut to 60 ± 10 Nm (45 ± 7 ft. lbs.).

INSPECTION
^ Check the bearing for wear or rust.
^ Check the rubber parts for damage or deterioration.
^ Check the spring for deformation, deterioration or damage.
^ Check the shock absorber for deformation.