Air Spring Damper, Emptying

Air Spring Damper, Emptying

Remove the front air spring damper. Refer to => [ Air Spring Damper ] Air Spring Damper.

- Slowly open the residual pressure retaining valve - 2 - on the front air spring damper and allow the air pressure to escape.





Remove the rear air spring damper. Refer to => [ Air Spring Damper ] Rear Suspension.

- Slowly open the residual pressure retaining valve - 2 - on the rear air spring damper and allow the air pressure to escape.





Illustrations show a conventional shock absorber. The procedure for an air spring damper is the same.

A - Opening by Drilling a Hole

- Secure the air spring damper vertically in a vise with the piston rod facing down.

CAUTION!
Wear protective eyewear while drilling.

- Drill a 3 mm diameter hole - arrow A - through the outer tube of the shock absorber.





- Continue drilling until the tube inside is drilled through (approximately 25 mm deep).

- Drill a second hole 6 mm in diameter - arrow B - through the outer and inner tubes of the shock absorber.

- Hold the shock absorber over an appropriate container for catching oil and move the piston rod repeatedly through its entire stroke until no more oil flows out.

B - Opening with a Pipe Cutter

CAUTION!
Wear protective eyewear while cutting.

- Attach a pipe cutter (for example, 150/3 Stahlwille Express) as shown in the illustration, and cut through the outer tube.





- Pull the piston rod upward, hold the inner tube in place with pliers and push it downward so that it remains in the outer tube when the piston rod is slowly raised.

- Remove the piston rod from the inner tube.

- Empty the shock absorber tube.