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Page 36 — English
Fig. 67
CARBURETOR COLD WEATHER
MECHANISM
See Figures 65 - 66.
The chain saw is designed with a ventilation
hatch on the right side of the cylinder cover which
allows warm air to be supplied from the engine to
the carburetor to help prevent icing under colder
operating conditions. Operating the chain saw in
temperatures from 32ºF to 41ºF (0ºC to 5ºC) at times
of high humidity may result in ice forming within
the carburetor. This can cause the output power of
the engine to be reduced and/or the engine to fail
to operate smoothly. When operating under these
circumstances, the chain saw should be placed in
cold weather mode before use.
To switch to cold weather mode:
Place the on/stop switch in the OFF (
)
position.
Remove the air filter cover.
Remove the air filter.
Lift choke knob up to remove from the cylinder
cover.
Loosen the four screws holding the cylinder
cover in place. Remove the cylinder cover.
Remove the icing cap located on the right-hand
side of the cylinder cover by pressing down on
it with your finger.
Adjust the icing cap so that the “snow” mark
faces upward, then return it to its original posi-
tion in the cylinder cover.
Replace the cylinder cover and reinstall screws
to secure.
Replace choke knob, air filter, and air filter cover.
NOTICE:
Always return the unit to normal operating mode
if there is no chance of icing occurring. Continu-
ing to use the chain saw in cold weather mode
when temperatures have risen and returned
to normal may result in the engine not starting
properly or in the engine not operating at its
normal speed.
SNOW
SNOW
SUN
SUN
CLEAN
CYLINDER FINS
3
4
2
1
AIR FILTER COVER
AIR
FILTER
CHOKE
KNOB
CYLINDER
COVER
ICING
CAP
LOCATION
OF
CYLINDER
COVER
SCREWS
MAINTENANCE
Fig. 65
Fig. 66
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