Safety Equipment; Chain Brake (Disassembly) - Husqvarna 50 Workshop Manual

4
The chain brake system has a strong spring under
tension. This spring activates the chain brake band when
the chain brake is engaged. The spring is located under
a cover plate that must be removed during servicing.
Anytime the cover is removed and the spring is still under
tension it may dislodge without warning. Eye protection
must be worn during disassembly and reassembly of the
chain brake.
Chain Brake
Disassembly
Disengage chain brake. Remove clutch cover retaining
nuts and withdraw cover from the chain saw.
Clean chain brake and clutch cover assembly. Engage
the chain brake by moving the hand guard forward.
Remove hand guard retaining screw. Rethread screw
into pivot sleeve two turns. Press on screw head to drive
out pivot sleeve half on the opposite side.