Dolmar Gasoline Chain Saws PS-510 - Manuel (Page 31)

3
8
12
12a
11
9
13 14
C
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 OPERATI-
ON" figs. B).
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).
Replace the old sprocket (8) with a new one (12) (for the order
number see “Extract from the spare parts list”).
Note: On the PS-460 and PS-50 the chain sprocket is perma-
nently attached to the clutch drum (12a) (for the order number
see “Extract from the spare parts list”).
Put on a new sprocket or complete clutch drum, the thrust
washer, and a new circlip (9) (for the order number see “Extract
from the spare parts list”).
For replacing the guide bar, chain, and sprocket see "PUTTING
INTO OPERATION A-H".
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”).
Likewise, replace the clutch drum at every second chain sprok-
ket replacement.
Instructions for changing the chain type
Always wear protective gloves!
- Before using a 3/8" saw chain, be sure to first cut out the
marked section of the chip deflector (13)!
- To do this, first cut along the marking (14) with a sharp knife
and then cut across to remove the piece.
NOTE:
If switching to chain type .325" it will be necessary to install a
newchip deflector (see „Extract from the spare parts list“ for
the part number).
Replacing the saw chain
CAUTION: Use only chains and guide bars designed for this saw (see the Extract from the spare-parts list)!
When changing chain types, always make sure to use the right sprocket (12). It may be necessary to change the
sprocket.
IMPORTANT: If the chain type is changed from .325" to 3/8", the chip deflector must be modified. See under „Instruc-
tions for changing the chain type.“