MAINTENANCE

Cleaning

External cleaning

Clean the machine daily by rinsing it with clean water after the work is finished.

Cooling air intake

Clean the cooling air intake when needed.

NOTICE! A dirty or blocked air intake results in the machine overheating which causes damage to the piston and cylinder.

Spark plug

If the machine is low on power, difficult to start or runs poorly at idle speed: always check the spark plug first before taking other steps.

Ensure that the spark plug cap and ignition lead are undamaged to avoid the risk of electric shock.

If the spark plug is dirty, clean it and at the same time check that the electrode gap is 0.5 mm. Replace if necessary.

NOTICE! Always use the recommended spark plug type! Use of the wrong spark plug can damage the piston/ cylinder.

These factors cause deposits on the spark plug electrodes, which may result in operating problems and starting difficulties.

An incorrect fuel mixture (too much or incorrect type of oil).

A dirty air filter.

Functional inspection

General inspection

Check that nuts and screws are tight.

Guide rollers

Lubricating the guide rollers

Connect the grease gun to the grease nipples.

Pump in grease until clean grease emerges from the overflow hole.

Replacing the guide rollers

Replace the guide rollers when half of the flange on the rollers is worn.

1)New, 3 mm (0.12’’)

2)Worn, 1,5 mm (0.06’’)

Remove the support roller cover.

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Husqvarna K970 manual Cleaning, Functional inspection