Husqvarna 340, 345, 346XP,350, 351, 353 manual Chain brake - reassembly, Operating test

Models: 340, 345, 346XP,350, 351, 353

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Repair instructions

Repair instructions

Chain brake – reassembly

1

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.

2

WARNING!

Make sure the spring does not fly out and cause injury. Wear eye protection.

Grip the clutch cover in a vice. Compress the spring with special tool 502 50 67-01 and push it down with your thumb.

3

Fit the cover over the chain brake spring, tightening the screws to a torque of 1–1.5 Nm.

4

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.

5

Turn the chain tensioner anticlockwise as far as it will go.

Refit:

guide bar

chain

clutch cover

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.

English – 13

Page 14
Image 14
Husqvarna 340, 345, 346XP,350, 351, 353 manual Chain brake - reassembly, Operating test, Repair instructions