Westinghouse TR18361 Instruction Manual page 13

F15
5. Make a test cut and adjust the H needle for best
cutting power, not for maximum speed.
(1) L needle
(2) H needle
(3) Idle adjusting screw
CARBURETOR ANTI-FREEZE MECHANISM
Operating the chain saw in temperatures of 0-5°C
at times of high humidity may result in ice forming
within the carburetor, and this in turn may cause
the output power of the engine to be reduced or
for the engine to fail to operate smoothly. This
product has accordingly been designed with a
ventilation hatch the back of the air cleaner cover
to allow warm air to be supplied to the engine and
to there by prevent icing from occurring.
Under normal oircumstances the product should
be used in normal operating mode, i.e., in the
mode to which it is set at the time of shipment.
However when the possibility exists that icing may
occur, the unit should be set to operate in
anti-freeze mode before use.(f15)
HOW TO SWITCH BETWEEN OPERATING
MODES (F15)
1. Flip the engine switch to turn off the engine.
2. Remove the air cleaner cover from the
cylinder cover
3. Loosen a screw and remove the screen on the
back of the air cleaner cover.
4. Reattach the screen right side left so as to the
anti-icing plate is on the right. Reinstall the
cover.
(1) Air cleaner cover
(2) Anti-icing plate
(3) Screw
(4) Normal operating mode
(5) Anti-freeze mode
(6) Screen