Piston Assembly Inspections; Seal Replacement - Husqvarna 2011 TE 630 Workshop Manual

REAR SUSPENSION
Clamp the top section of the shock absorber in a vice with aluminium or bronze
jaws. Insert a rod or a screwdriver into the mounting hole and extract the rod
guide and piston assembly from the shock absorber body. Before extracting the
assembly, cover the end of the shock body with a cloth to capture leaking oil.
Keep the shock absorber in the vice taking in nearly vertical position. If
you drain the oil, you will need to replace the reservoir floating piston.
Pour the oil into a clean pan and leave it to settle.

Piston assembly inspections

1) Check the seal for wear or damage (replace if worn or damaged)
2) Check the O-ring on the rod guide. Replace if scored.
3) Check the surface of the chrome-plated rod for dents or scoring. If any damage
is found, seal and DU bush will be damaged as well and you will need to replace
the rod guide, too. (Rod, rod guide and clevis are supplied as a set).

Seal replacement

If you need to replace the seal, unscrew the clevis, slide off the rod guide and fit
a new seal. Reassemble and refit the clevis securing it with Loctite and tightening
to 50 Nm (5 kgm; 36.9 ft/lb).
J.10
Part. N. 8000 H2051 (02-2010)