A - Venting through Drill Holes
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-- Secure gas-filled shock absorber vertically in vise, with piston rod facing down.
WARNING:
Wear protective eyewear while drilling.
-- Drill a 3 mm hole -arrow A- through the shock absorber outer tube.
NOTE:
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 an appropriate container for catching oil and move the piston rod repeatedly through the entire stroke until no more oil flows out.