Safety Equipment; Dismantling The Chain Brake - Husqvarna 445 Workshop Manual

6.1 Dismantling the chain brake

1
Release the brake by moving the front hand guard
backward.
Loosen the bar nuts and remove the clutch cover,
chain and bar. (see figure 1)
2
Carefully tighten the clutch housing in a vice.
Release the brake by using the saw's front hand
guard (A) as a tool. Mesh with the brake and tigh-
ten anti-clockwise until the brake is activated. (see
figure 2)
WARNING!
Exercise care to ensure the spring
e n t
nal injury. Wear protective glasses.
3
Loosen the screws and carefully remove the cover
over the brake spring. (see figure 3)
4
Hold one hand over the brake spring; press a nar-
row screwdriver in between the rear section of the
spring and the clutch cover. Carefully pry upward
until the spring releases and runs onto the screw-
driver shaft. (see figure 4)
Cleaning and inspection
• Carefully clean and check all parts. Parts must
be replaced if cracked or show signs of other
defects. Always use original spare parts.
• Measure the thickness of the chain brake band.
It must not be less than 0.6 mm at any point.
(see figure 5)
• Lubricate the knee joint with grease.

6 Safety equipment

ut an cau e per
-
Fig 1
Fig 2
Fig 3
Fig 4
min 0,6 mm
Fig 5
Safety equipment
17
English –