Husqvarna 15T 用户手册

22 – 

English

6

 If the paper filter is still dirty it should be replaced with a 
new one.

Always replace the paper filter every 200 hours.

7

Put the pre-filter and paper filter back into the air filter unit.

8

Put back the air filter unit by first aligning the hooks on the 
bottom of the unit, then press it until the catches lock into 
position.

Check regularly that the fuel pump’s air filter is free from dirt.

The filter can when necessary be cleaned with a brush.

•

Remove the screws and open the pump, no hoses need 
be removed.

•

Replace the pump on the console.

The engine is equipped with an electronic ignition system. 
Only the spark plug requires maintenance.

For recommended spark plug, see Technical data.

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 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.

Fitting the wrong spark plug type can damage the engine.

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.