Front Gas-Filled Shock Absorbers, Venting And Draining
A - Venting through Drill Holes
-- Secure the gas-filled shock absorber vertically in a vise, with piston rod facing down.
Wear protective eyewear while drilling.
-- Drill a 3 mm hole -arrow A- through the shock absorber outer tube.
Gas escapes when drilling.
-- Continue drilling until the tube inside is drilled through (approximately 25 mm deep).
-- Drill a second 6 mm hole -arrow B- through the outer and inner shock absorber tubes.
-- Hold the shock absorber over a suitable container for catching oil and move the piston rod repeatedly over the entire stroke until no more oil flows out.
B - Open with Pipe Cutter
Wear protective eyewear when drilling or sawing.
-- Drill a 3 mm hole -arrow- through the shock absorber outer tube or saw through the tube wall.
Gas escapes when drilling or sawing.
-- Attach a pipe cutter (for example 150/3 Stahlwille Express) as shown and cut through the shock absorber outer tube.
-- Pull the piston rod upward, hold the shock absorber inner tube in place with pliers and push it downward so that it remains in the shock absorber outer tube when the piston rod is slowly raised.
-- Remove the piston rod from the shock absorber inner tube.
-- Empty the shock absorber tube.