Husqvarna R 322T AWD Owners Manual - Page 25

Maintenance 8 Pull the filter over the air hose and clamp the filter cartridge in place with a hose clip. 9 Refit the air filter cover. Ignition system The engine is equipped with an electronic ignition system. Only the spark plug requires maintenance. For recommended spark plug, see Technical data. IMPORTANT INFORMATION Fitting the wrong spark plug type can damage the engine. Replacing the spark plug 1 Remove the ignition cable shoe and clean around the spark plug. 2 Remove the spark plug with a 3/4" (16 mm) spark plug socket wrench. 3 Check the spark plug. Replace the spark plug if the electrodes are burned or if the insulation is cracked or damaged. Clean the spark plug with a steel brush if it is to be reused. 4 Measure the electrode gap with a gapping tool. The gap should be 0.75 mm/0.030". Adjust as necessary by bending the side electrode. 5 Reinsert the spark plug, turning by hand to avoid damaging the threads. 6 Tighten the spark plug, once it touches the seating, with the spark plug spanner. Tighten the spark plug so that the washer is compressed. A used spark plug should be turned 1/8 of a turn from the seated position. A new spark plug should be turned a 1/4 turn from the seated position. 7 Replace the ignition cable shoe. IMPORTANT INFORMATION Inadequately tightened spark plugs can cause overheating and damage the engine. Tightening the spark plug too much can damage the threads in the cylinder head. Check the safety system The machine is equipped with a safety system that prevents starting or driving under the following conditions. The engine can only be started when: • The cutting deck is raised and the parking brake is applied. The engine should stop when: • The cutting deck is lowered and the driver rises from the seat. • The cutting deck is in its raised position, the parking brake is not applied and the driver rises from the seat. Check daily to ensure that the safety system works by attempting to start the engine when one of the conditions above is not met. Change the conditions and try again. English - 25