Husqvarna 122HD60 Owners Manual - Page 17

MAINTENANCE If the machine is low on power, difficult to start or runs poorly at idle speed: always check the spark plug first before taking any further action. If the spark plug is dirty, clean it and check that the electrode gap is 0,5 mm (0,020"). The spark plug should be replaced after about a month in operation or earlier if necessary. CAUTION! Always use the recommended spark plug type! Use of the wrong spark plug can damage the piston/ cylinder. Check that the spark plug is fitted with a suppressor. Air filter Oiling the air filter Always use HUSQVARNA filter oil, art. no. 531 00 92-48. The filter oil contains a solvent to make it spread evenly through the filter. You should therefore avoid skin contact. Put the filter in a plastic bag and pour the filter oil over it. Knead the plastic bag to distribute the oil. Squeeze the excess oil out of the filter inside the plastic bag and pour off the excess before fitting the filter to the machine. Never use common engine oil. This would drain through the filter quite quickly and collect in the bottom. The air filter must be regularly cleaned to remove dust and dirt in order to avoid: • Carburettor malfunctions • Starting problems • Loss of engine power • Unnecessary wear to engine parts • Excessive fuel consumption. Clean the filter every 25 hours, or more regularly if conditions are exceptionally dusty. Gear There is a plug for filling lubricant on the gear housing. Use the grease tube to fill with grease and repeat every 25 hours. Use Husqvarna's special grease. Cleaning the air filter Remove the air filter cover and take out the filter. Wash it clean in warm, soapy water. Allow the filter to dry and then oil it in according to the instructions. An air filter that has been in use for a long time cannot be cleaned completely. The filter must therefore be replaced with a new one at regular intervals. A damaged air filter must always be replaced. CAUTION! The gear housing must not be filled completely with grease. The grease expands as the machine heats up during operation. If the gear housing was completely filled with grease it could damage the seals and lead to leakage of grease. The grease in the bevel gear does not normally need to be changed except if repairs are carried out. Cutting unit Check that the cutting units' screws are fitted correctly. Tighten them with a tightening torque of 7-10 Nm. 1153993-49 Rev 2. 2012-03-21 English - 17