Husqvarna TC 450 Workshop Manual page 252

REAR SUSPENSION
Prepare the diaphragm with assembled OR (we advise using a new one for
each replacement). Fill up the reservoir with oil and insert the diaphragm into
the reservoir, (see photo).
Quickly push the diaphragm downwards at the bottom of the reservoir holding
fast the forkdìrod in the topping up position. The oil topped up in the reservoir
is transferred into the shock absorber body, then sifting through the position
blades, it reaches the required level. Avoid possible air intake by quickly carry-
ing out these operations.
Proceed by topping up until reachin approx. 2 cms (0.8 in.) from the body edge.
Then, execute 4 or 5 alternating strokes of 5 - 6 cms (2-2.4 in.) to bleed the air
left under the piston unit.
These movements should be slow to prevent the reservoir dia-
phragm from moving through cavitation or compression. Top up
with oil the smap ring throat is reached, then slowly fit the forkrod,
and the inside end-of-stroke pad, edge-wise with the snap ring
throat.
Keep the forkrod in position and run the forkrod guide to fit the shock absorber
tube. Drive the forkrod guide inside the body antil the snap ring housing is free.
Insert the snap ring and tighten it in position. Pull the rokrod upwards to take the
forkrod guide in working position.
J.12
Part. N. 8000 H1344 (10-2009)