Drive Chain; Tightening; Checking Drive Chain And Sprockets - Husqvarna BE550 Operation Manual

Drive Chain

Tightening

1. Allow engine to cool. remove spark plug
cable.
2. remove guard only.
3. Using a / wrench and a
9
16
loosen the mounting idler bolt. Slide up to
tension chain, retighten bolt.

Checking Drive Chain And Sprockets

1. Allow engine to cool. remove spark plug
cable.
2. remove the guard, cutting head, chain cover
and transmission cover.
3. do not remove mounting hub from shaft.
4. check that the chain is running in the proper
track; the sprockets should guide the chain in
a straight line.
5. check the chain for cracks, heat damage
or worn edges. If these symptoms appear,
replace the drive chain; see Replacing Drive
Chain.
6. check that the tensioning equipment for the
chain is not loose and is properly set; see
Replacing Drive Chain.
7. refit the chain cover, transmission cover,
cutting head and shield.
16
maIntenanCe
/ socket wrench,
9
16
Chain
Cover
Cutting
head
Guard
Transmission
Cover