Stihl 009 User Manual

STIHL 009, 010, 011 8
2.1.2 Chain Brake
The chain brake is a spring-loaded The chain brake is disengaged by The chain brake is engaged by
band brake without any friction linings. pulling the hand guard back toward moving the hand guard toward the
Its main components are the brake the handlebar. This movement is bar nose. This movement unlatches
band, tension spring, hand guard and transmitted via a lever system which the locked brake lever and causes
the lever system. preloads the tension spring and re- the brake band to be clamped
leases the brake band. around the clutch drum by the force
The chain brake is actuated via the of the preloaded tension spring. The
hand guard which can be used to The actuating lever, which is attached cluch drum and saw chain are
disengage or engage the brake. to the hand guard, remains locked in brought to a standstill in a split
the idle position after the operator second.
releases the hand guard.
2.2 Troubleshooting Chart
Condition Cause Remedy
Saw chain turns at idle speed Engine idle speed too high Readjust at idle speed
adjusting screw
Clutch broken Fit new clutch
Excessive chain sprocket wear Incorrect chain tension Tension chain correctly
Saw chain does not stop Tension spring broken Fit new tension spring
immediately when chain brake is
actuated

Stihl 009 Specifications

General

Brand	Stihl
Model	009
Category	Chainsaw
Language	English