Husqvarna K3600 Mk II Workshop Manual page 12

REPLACEMENT OF ENGAGEMENT AND SUPPORT ROLLERS 7
Support rollers
Inspection
Check the integrity of the
support roller bearings. Check
that the bearing arms can move
and that they do not have
excessive play.
Replace support rollers
Secure the tool in a vice
Lock the nut using the box
spanner and unscrew the socket
head cap screw.
Remove the wear part.
Clean and grease
Clean the grooves in the sealing
collar.
Clean and apply grease under
the washer and on the support
roller seat.
Fit the wear part
Use a new socket head cap screw
with thread lock during installa-
tion.
Tighten the socket head cap
!
screw firmly.
Support rollers
Inspection
Check the integrity of the support roller
bearings – the rollers must be able to
rotate freely, with even movement and
zero play.
The support roller is fitted on an arm
that changes position during roller
adjustment. Check that the bearing arms
can move and that they do not exhibit
too much play in their mountings.
The simplest way of correcting a defec-
tive bearing arm is by replacing it with a
new bearing arm assembly with pre-
installed bearings. Replace defective
bearings as described in Chapter 8.
Replace support rollers
Secure the tool in a vice
The simplest way of removing the wear
part is to place a box spanner in a vice as
shown in the picture.
Lock the nut using the spanner and
unscrew the socket head cap screw.
Never put the roller in the vice!
Once the socket head cap screw has been
removed, the wear part can be pulled
from the shaft.
Clean and grease
Clean the grooves in the sealing collar.
Use steel wire or twine. The grooves and
the conical interior of the roller work to
counteract the build-up of sludge in the
centre.
Clean and apply grease under the washer
and on the support roller seat.
Fit the wear part
Put the new support roller in position,
thread on the lock nut and fit a new
socket head cap screw with thread lock.
Position the roller against the tool in the
vice and tighten the socket head cap
screw firmly.
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