NOTE: The chain is correctly tensioned when there is no
sag on the underside of the guide bar; the chain is snug,
but can be rotated by hand without binding. For more
information on chain tensioning, see the maintenance
section beginning on page 19.
Fig. 8
End cover knob
Chain tension knob
9. Raise the guide bar and tighten the end cover knob
securely (Fig. 9).
Fig. 9
End cover
knob
NOTE: If the chain is too tight, it will not rotate. Loosen the
end cover knob slightly and turn the chain tension knob 1/4
turn counterclockwise. Lift the tip of the guide bar up and
retighten the cover cap knob. Ensure that the chain can be
rotated by hand without binding.
NOTE: A new chain tends to stretch; check the chain tension
frequently, and adjust tension as required.
Preparing To Work
Checking the Machine
m
WARNING!
Before performing any checks,
adjustments, repairs or maintenance on the machine, make
sure the battery is not inserted in the compartment.
m
CAUTION!
The chain will continue to run for several
seconds after turning off the tool.
Before starting work please:
• Check that all the screws on the machine and the guide
bar are tightly fastened;
• Check that the chain is tensioned correctly, sharp and
there are no signs of any damage;
• Check that hand grips and protection devices are
clean and dry, correctly mounted and securely fastened
to the machine;
• Check that the chain brake is working efficiently;
• Check that the trigger switch and the safety button move
freely without forcing and return automatically and rapidly
back to their neutral positions;
• Check that the trigger switch remains locked until the
safety button is pressed;
• Make sure the cooling air vents are not clogged with
sawdust or debris;
• Check that the chain's oil level is not below the "L" level
mark; if necessary, top up the oil to 1 cm from the rim of
the filler.
NOTE: You must fill the chain oil tank with bar and chain
oil before using your chain saw.
Adjusting the Chain Tension
1. Tension the chain by turning the chain tensioning
knob clockwise (Fig. 10). A cold chain will be correctly
tensioned when there is no slack on the underside of the
guide bar; the chain is snug, but it can be turned by hand
without binding.
Fig. 10
Chain tensioner
knob
2. The tension is correct when the drive links on the chain do
not slip out of the chain guide on the bar when the chain
is pulled up from the middle of the bar (Fig. 11).
10