SRAM RockShox RS-1 Service Manual page 27

Clamp the wrench flats of the cartridge tube into a vise. With the cartridge
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tube facing upward, spray isopropyl alcohol into it. Squeeze the bladder 2-3
times to ingest alcohol into the bladder.
Remove the assembly from the vise. With the cartridge tube downward,
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squeeze the bladder until all of the isopropyl alcohol is drained into an oil
pan. Use an air compressor nozzle to dry the assembly.
Charger 2 Damper Removal 27