Husqvarna 545 Mark II Workshop Manual page 63

8.19.3 To replace the seal ring
Note: Hold the outer part of the bearing when you the
replace seal ring. Make sure that the bearing does not
move.
1. On the flywheel side: Remove the starter and the
flywheel.
2. On the clutch side: Remove the guide bar and saw
chain, the chain guide plate, the centrifugal clutch
and the oil pump.
3. Use a screwdriver to remove the seal ring.
4. Attach the guide ring (A) on the crankshaft axle (B).
Take the new seal ring (C) and apply two-stroke oil
on the sealing lip. Pull the sealing lip onto the seal
ring (C) and move the seal ring (C) onto the guide
ring (A).
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5. Use a seal ring tool to put the new seal ring in the
correct position. Refer to
6. Remove the guide ring (A).
8.19.4 To clean the air channel
The product has an air channel from the the clutch side
to the flywheel side.
1. Remove the guide bar from the clutch side.
2. Remove the starter from the flywheel side.
3. Remove the clutch cover.
4. Examine the air channel.
C
A
B
Servicing tools on page 12
CAUTION: Make sure that the air channel does
not get clogged. A clogged air channel
increases the risk to overheat the product.
Repair instructions - 63