28
11
9
12
8
Check the sprocket before mounting a new chain.
Worn out sprockets (
8
) may damage the new chain and must
therefore be replaced.
Remove the sprocket guard (See “PUTTING INTO OPERA
‑
TION”).
Remove the chain and guide bar.
Remove circlip (
9).
CAUTION: The circlip will pop out of the groove. When
removing it, hold your thumb against it to prevent it from
popping off.
Remove thrust washer (
11).
If the sprocket (
8
) is worn out, the complete clutch drum (
12
)
will need to
be replaced (for the part number, see “Extract
from the
spare parts list”).
Install a complete new clutch drum (
12
), cup washer (
11
)
and new circlip (
9
) (for
the part numbers, see “Extract from
the spare parts list”).
For replacing the guide bar, chain, and sprocket see “PUT
‑
TING INTO OPERATION”.
NOTE:
Don’t use a new chain on a worn chain sprocket. By the
time 2 chains have worn, the sprocket has become worn
out, so it should be replaced at least at every second chain
replacement. To distribute the chain oil evenly, run a new
chain at half‑throttle for a few minutes before use.
New chains stretch, so check the chain tension frequently
(see “Checking the chain tension”).
Replacing the saw chain
CAUTION: Use only chains and guide bars designed for this saw
(see the Extract from the spare‑parts list)
!
