Husqvarna 966451906 manual Dismantling the muffler, Assembling the muffler, Functional inspection

NOTE!

After repairing, the chain brake must be in- spected in line with the instruction below.

Functional inspection:

Do not turn on the motor when carrying out this inspection.

•Hold the chain saw over a stable surface. The distance between the bar and the surface is shown in the table above.

•Let go of the front handle and let the chain saw drop toward the surface underneath.

•When the bar hits the surface the chain brake must trigger.

6.3Dismantling the muffler

WARNING!

Do not touch the muffler until it has cooled. Risk of burns.

1

Remove the cylinder cover, muffler, gasket and cooling fin.

2

The saw is fitted with spark arrestor mesh, which is removed. If necessary, use the combination span- ner to push down the plate edge and remove the spark arrestor mesh. See figure 12.

Cleaning and inspection

Clean and check all components carefully.

Parts must be replaced if cracked or show signs of other defects. Always use original spare parts. The spark arrestor mesh is best cleaned with a wire brush.

The mesh must be replaced, if damaged.

The saw will overheat if the mesh is clogged result- ing in damage to the cylinder and piston.

Never use a saw with a clogged or defective muffler.

6.4 Assembling the muffler

1

If the saw is fitted with a spark arrestor mesh, put it in place first. When fitting the mesh, make sure that the mesh is inserted in the right position. If necessary, use the combination spanner to insert the mesh.

2

Fit the:

• cooling fin

• gasket

• muffler, tightening torque of 12-14 Nm.

• Cylinder cover

3

Warm up the saw for at least one minute and retighten the screws on the muffler to 12 to 14 Nm.

Fig 11

Fig 12

English - 19