Husqvarna Pro 18 AWD manual Ignition System, Replacing the Spark Plug, Maintenance

MAINTENANCE

Checking the Acid Level in the Battery

Check that the acid level in the battery lies between the markings. When refilling, only distilled water may be used to fill the cells.

WARNING!

Actions with acid contact

External: Rinse thoroughly with water.

Internal: Drink large quantities of water or milk. Contact a doctor as soon as possible.

Eyes: Rinse thoroughly with water. Contact a doctor as soon as possible.

The battery emits explosive gases. Sparks, flames, and cigarettes must not be present in the vicinity of the battery.

6008-216

Ignition System

The engine is equipped with an electronic ignition system. Only the spark plugs require maintenance.

For the 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" (19 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 wire 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.After the spark plug is seated, tighten it using a spark plug wrench 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 1/4 a turn from the seated position.

7.Replace the ignition cable shoe.

8011-054

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.

32 – English