Overhaul

COIL SPRING AND STRUT


Disassembly and Assembly


DISASSEMBLY

CAUTION:
Do not damage strut piston rod when removing components from strut assembly.





1. Install Tool (A) to strut and secure it in a vise.

Tool number : ST35652000 ( - )


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





2. Using a spring compressor (commercial service tool), compress coil spring between strut mounting bearing and spring lower seat (on strut) until coil spring is free.

CAUTION:
Be sure the spring compressor is securely attached to the coil spring before compressing coil spring.
3. Make sure coil spring with spring compressor between strut mounting bearing and spring lower seat (strut) is free. Then remove piston rod lock nut while securing the piston rod tip so that piston rod does not turn.
4. Remove strut mounting insulator, strut mounting bearing, and bound bumper from strut.
5. Remove coil spring with spring compressor, and then gradually release a spring compressor.

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

INSPECTION AFTER DISASSEMBLY

Strut Inspection
Check the following:
- Strut for deformation, cracks or damage, and replace it if necessary.
- Piston rod for damage, uneven wear or distortion, and replace it if necessary.
- For oil leakage, and replace it if necessary.

Strut Mounting Insulator and Rubber Parts Inspection
Check strut mounting insulator for cracks and rubber parts for wear. Replace it if malfunction is detected.

Coil Spring Inspection
Check coil spring for cracks, wear or damage, and replace it if necessary.

ASSEMBLY

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





1. Install the Tool (A) to strut and secure it in a vise.

Tool number : ST35652000 ( - )


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





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

CAUTION:





- Face tube side of coil spring downward. Align the lower end to spring lower seat as shown.
- Be sure spring compressor is securely attached to coil spring. Compress coil spring.
3. Apply soapy water to bound bumper. Insert bound bumper into strut mounting insulator.

CAUTION:
Do not use machine oil.
4. Attach strut mounting bearing and strut mounting insulator.





- Installation position of strut mounting insulator as shown.
5. Secure piston rod tip so that piston rod does not turn, then tighten piston rod lock nut to specified torque.
6. Gradually release a spring compressor, and remove coil spring.

CAUTION:
Loosen while making sure coil spring attachment position does not move.
7. Remove the strut attachment from strut.