Dismantling The Muf Er; Assembling The Muf Er - Husqvarna 445 Workshop Manual

perating te t
The engine must not be running during the test.
Guide bar length
38cm 15
old 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. (see figure 10)
6.3 Silencer – removal
WARNING!
Do not touch the silencer until it
ha c le
may burn yourself.
1
Remove the cylinder cover, silencer, gasket and
cooling plate.
2
f the saw is fitted with a spark arrestor mesh (A)
this must also be removed. (see figure 11)
Cleaning and inspection
Clean and inspect all parts carefully. If there are
any cracks or other defects replace the damaged
parts with new ones.
The spark arrestor mesh is best cleaned with a
wire brush. If the mesh is damaged it must be
replaced.
If the mesh is blocked the saw will overheat and
this will cause damage to cylinder and piston.
Never use the saw with a silencer that is in poor
condition. Always use original parts.
6.4 ilencer refitting
1
If the saw is equipped with a spark arrestor mesh
this should be fitted first.
2
Refit
• cooling plate
• gasket
• silencer, tighten bolts to a torque of 8–10 Nm.
• cylinder cover
3
Run the saw for at least 1 minute, then retighten
the silencer bolts to 12–14 Nm.
Height
50 cm 20
n ther i e u
Fig 10
A
Fig 11
Safety equipment
19
English –