Replacing The Bar Bolt; Repairing Damaged Threads - Husqvarna RedMax GZ550 Workshop Manual

Repair Instructions

7.26 Replacing the bar bolt

Replacing a bar bolt with intact crankcase
1
Empty and clean the chain oil tank.
2
Knock in the old bar bolts from the outside so
that they end up in the chain oil tank. (The plas-
tic surface on the head will break.)
3
Remove the bolts from the oil tank.
4
Attach a wire to the head of the bar bolt, lower
the wire through the oil tank and out through the
bolt opening in the crankcase. See figure 76.
5
Pull out the bar bolt so that it protrudes from the
opening. See figure 76.
6
Pull out the bar bolt with a nut. Insert a spacer
between the nut and the crankcase. See figure
76.
Fig 76
7
Fill with chain oil.

7.27 Repairing damaged threads

If threads on the chainsaw are worn, the repair kit
(503 27 33-01) is available.
First drill with:
6.0 mm drill for the plastic crankcase.
Then screw in the thread plug using a suitable
screw and spanner.
This type of screw plug is ideal for plastic and
Fig 77
magnesium but cannot be used to repair threads
in aluminum. There is another type of thread plug
and metric screw available for this purpose. See
figure 77. Check the manufacturer's manual for
thread information.
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