Husqvarna 357 XP Owners Manual - Page 37

MAINTENANCE because the higher exhaust temperature requires efficient cooling of the engine and the catalytic converter unit. "Air Injection" centrifugal cleaning Centrifugal cleaning means the following: All air to the carburetor passes through the starter. Dirt and dust is pushed out by the cooling fan. • a special cover (A) for the starter housing • a winter plug (B) for the air nozzle that is fitted as shown. IMPORTANT! In order to maintain operation of the centrifugal cleaning system it must be regularly maintained. Clean the air intake to the starter, the fins on the flywheel, the space around the flywheel, inlet pipe and carburetor compartment. Winter use Running problems can occur when using the machine in the cold and snowy conditions caused by: • Too low engine temperature. • Icing of the air filter and carburetor. Special measures are therefore often required: • Partly mask the air inlet on the starter to increase the working temperature of the engine. • Preheat the intake air to the carburetor by using the heat from the cylinder. Temperature 0°C (32°F) or colder: These reduce the flow of cooling air and prevent large amounts of snow from being sucked into the carburetor space. CAUTION! When the winter plug is fitted the winter flap must be open! IMPORTANT! If the temperature rises above -5°C (23°F) or 0°C (32°F) respectively the machine MUST be restored to its normal set-up. Otherwise there is a risk of overheating, which can cause severe engine damage. Heated handles (357 XPG, 359 G) On models with the designation XPG/G, the front as well as the rear handle are equipped with electric heating coils. These are fed with electrical current from an integrated generator in the chain saw. When the switch is pushed downwards, the heat is switched on. When the switch is pushed upwards, the heat is switched off. The cylinder cover is designed so it can be adjusted for running in cold weather. Twist the winter flap so that preheated air from the cylinder can pass into the carburetor space preventing icing of the air filter, etc. Electrical carburetor heating (357 XPG, 359 G) On models with the designation CARBURETOR HEATING there is an electrically heated carburetor. Electrically powered heating prevents ice formation in the carburetor. A thermostat regulates the heating so that the carburetor always has the right working temperature. For temperatures below -5°C (23°F) and/or in snow conditions there is also: English - 37