33
Rear Shock Disassembly
1. Bleed the gas pressure from the shock.
Hold a rag over the bleed (Schrader) valve during this operation as the contents
are at extremely high pressure.
2. Remove the spring by removing the lock nut and other nut with a large
spanner.
NOTE:
Measure the distance from the top of the spring to a feature on the top of the
shock for repeatable reassembly.
3. Using a ‘Pin’ type spanner, separate the top portion of the shock from the
bottom.
NOTE:
Holding the shock in a vertical manner with the bleed valve ‘down’ during
separation will minimize the amount of oil that is spilled.
4. Drain the oil into a suitable container for proper recycling
5. Clean the components of old oil and contaminates.
6. Look for signs of wear and replace if necessary.
Assembly
1. If the bleed valve was removed, clean the threads of both components, apply
some Teflon pipe sealant to the threads of the bleed valve, and install (torque
to 10 ft-lb (14 Nm)).
2. With the bottom shock portion situated vertically, fill with 2.5 wt (often called 3
wt) shock oil until 37 – 38 mm from the top edge.
3. Install damper unit, into the bottom portion of the shock taking care to not
‘splash’ out shock oil in the process (tighten securely).
4. Holding the shock vertical, with the bleed valve
upward
, stroke the piston
through its complete travel several times, slowly, and then bleed off any
excess air.
5. Charge the shock with 230 psig nitrogen.
6. Reinstall the spring, to the previously measured compressed length and
secure with the lock nut.
