Husqvarna 445 - Fuel Handling; Fuel Mixing Ratios and Types; Chain Oil Selection and Use

English – 19
perating tet
The engine must not be running during the test.
Guide bar length Height
38cm15 50 cm20
 old the chainsaw over a rm 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 gure 10)
Safety equipment
WARNING!
Do not touch the silencer until it
ha cle n therie u
may burn yourself.
6.3 Silencer – removal
1
Remove the cylinder cover, silencer, gasket and
cooling plate.
2
f the saw is tted with a spark arrestor mesh (A)
this must also be removed. (see gure 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  retting
1
If the saw is equipped with a spark arrestor mesh
this should be tted rst.
2
Ret
• 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.
A
Fig 10
Fig 11