Warning: Gas charged shock absorbers contain high pressure gas. Do not remove the snap ring from inside the top of the tube. If the snap ring is removed, the contents of the shock absorber will come out with extreme force which may result in personal injury.
Warning: To prevent personal injury, wear safety glasses when centre punching and drilling the shock absorber. Use care not to puncture the shock absorber tube with the centre punch.
- Make an indentation 10 mm (0.4 in) from the bottom (4) of the tube (3) using a centre punch.
- Clamp the shock absorber in a vice horizontally with the shock absorber rod (1) completely extended.
- Drill a hole in the shock absorber at the centre punch (4) using a 5 mm (3/16 in) drill bit. Gas or a gas/oil mixture will exhaust when the drill bit penetrates the shock absorber. Use workshop towels in order to contain the escaping oil.
- Make an indentation in the middle (2) of the tube (3) with a centre punch.
- Drill a second hole in the shock absorber at the centre punch (2) using a 5 mm (3/16 in) drill bit. Oil will exhaust when the drill bit penetrates the shock absorber. Use workshop towels in order to contain the escaping oil.
- Remove the shock absorber from the vice. Hold the shock absorber over a drain pan horizontally with the holes down. Move the rod (1) in and out of the tube (3) to completely drain the oil from the shock absorber.
