Disassembly and Assembly Suspension Strut

COIL SPRING AND SHOCK ABSORBER

Disassembly and Assembly

DISASSEMBLY

CAUTION:
Do not damage shock absorber piston rod when removing components from shock absorber.

1. Install shock absorber attachment [SST] to shock absorber and secure it in a vise.

CAUTION:
When installing the shock absorber attachment to shock absorber, wrap a shop cloth around strut to protect it from damage.

2. Using a spring compressor (commercial service tool), compress coil spring between rubber seat and spring lower seat (on shock absorber) until coil spring with a spring compressor is free.

CAUTION:
Be sure a spring compressor is securely attached coil spring. Compress coil spring
3. Make sure coil spring with a spring compressor between rubber seat and spring lower seat (shock absorber) is free and then remove piston rod lock nut while securing the piston rod tip so that piston rod does not turn.
4. Remove shock absorber mounting bracket, rubber seat, bound bumper from shock absorber.
5. Remove coil spring with a spring compressor, and then gradually release a spring compressor.

CAUTION:
Loosen while making sure coil spring attachment position does not move.
6. Remove the shock absorber attachment from shock absorber.

INSPECTION AFTER DISASSEMBLY

Shock Absorber Inspection
Check the following:
- Shock absorber for deformation, cracks or damage, and replace it if a malfunction is detected.
- Piston rod for damage, uneven wear or distortion, and replace it if a malfunction is detected.
- For oil leakage, and replace it if a malfunction is detected.

Shock Absorber Mounting Bracket and Rubber Parts Inspection
Check shock absorber mounting bracket for cracks and rubber parts for wear. Replace it if a malfunction is detected

Coil Spring Inspection
Check coil spring for cracks, wear or damage, and replace it if a malfunction is detected.

ASSEMBLY

CAUTION:
Do not damage shock absorber piston rod when installing components to shock absorber.

2. Compress coil spring using a spring compressor (commercial service tool), and install it onto shock absorber.

CAUTION:
- Install coil spring as shown in the figure with large diameter side [100 mm (3.94 in)] up and small diameter side [90 mm (3.54 in)] down. (Distinction marks are 4.75 and 5.75 turn from the lower side end.)

- Be sure a spring compressor is securely attached to coil spring. Compress coil spring.
3. Apply soapy water to bound bumper. Insert bound bumper into shock absorber mounting bracket, and then install it to shock absorber together with rubber seat.

CAUTION:
Do not use machine oil.
- Install shock absorber mounting bracket as shown in the figure.

CAUTION:
- Coil spring is securely seated in spring mounting groove of rubber seat.
- The bottom part of spring should be at the position of A point of spring seat.

4. Secure piston rod tip so that piston rod does not turn, then tighten piston rod lock nut with specified torque.
5. Gradually release a spring compressor, and remove coil spring.

CAUTION:
Loosen while making sure coil spring attachment position does not move.
6. Remove the shock absorber attachment from shock absorber.