Husqvarna 340 User Manual download pdf (Page 14)

English – 13

Repair instructions

NOTE!

After completing the repair the chain

brake must be tested as described below.

Operating test:

The engine must not be running during the test.

Guide bar length Height

38cm/15" 50 cm/20"

• Hold the chainsaw over a firm surface. The

height of the guide bar above the surface is

given in the table above.

• Let go of the front handle and let the chainsaw

fall towards the surface.

• When the guide bar hits the surface the chain

brake must engage.

Chain brake – reassembly

Bolt the elbow joint to the brake band and tighten

to a torque of 1–1.5 Nm.

Locate the elbow joint and connected brake band

in their recesses in the clutch cover. Lubricate the

recess for the spring with grease.

Grip the clutch cover in a vice. Compress the

spring with special tool 502 50 67-01 and push it

down with your thumb.

Fit the cover over the chain brake spring, tightening

the screws to a torque of 1–1.5 Nm.

Tension the brake spring by using the kickback

guard from the saw as a tool. Engage it with the

brake mechanism and turn clockwise to release

the brake.

Turn the chain tensioner anticlockwise as far as it

will go.

Refit:

• guide bar

• chain

• clutch cover

WARNING!

Make sure the spring does not fly

out and cause injury. Wear eye

protection.

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Husqvarna 340 User Manual Page 14