RedMax GZ4000 Owners Manual - Page 15

7. Operation F17 F18 ■ STOPPING ENGINE 1. Release the throttle lever to allow the engine idling for a few minutes 2. Put the switch to the "O" (STOP) position. (F17) (1) Switch Carburetor anti-freeze mechanism Operating the chain saws 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 on the right side of the surface of the cylinder cover to allow warm air to be supplied to the engine and to thereby prevent icing from occurring. Under normal circumstances 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.(F18) (1) Normal operating mode (2) Anti-freeze mode (3) Cylinder cover (4) 'Sun shine' mark (5) 'Snow' mark WARNING Continuing to use the product in anti-freeze mode even when temperatures have risen and returned to normal may result in the engine failing to start properly or in the engine failing to operate at its normal speed, and for this reason you should always be sure to return the unit to normal operating mode if there is no danger of icing occurring. 15 