Release the chain brake
By Mark van der Feyst
Every ventilation and chain saw has a chain brake. The chain brake is designed to prevent serious injury from kickback. When kickback occurs, the chain brake will engage stopping the rotation of the chain — preventing the chain from cutting into the flesh of the operator.
As needed as this device is, it can sometimes be the cause of clutch failure thus leading to the saw not working at all. When the chain brake is engaged, it engages the clutch that removes the power from the chain and prevents rotation. When the motor is operating at full throttle and the clutch is engaged, the clutch will start to heat up leading it to eventually burn out. When starting a saw of this type, make sure that the chain brake is off when revving it up to full throttle. When operating the saw, make sure the chain brake is off.
Join the discussion
The comments below are member-generated and do not necessarily reflect the opinions of FireRescue1.com or its staff. If you cannot see comments, try disabling privacy and ad blocking plugins in your browser. All comments must comply with our Member Commenting Policy.
FireRescue1 top 5
- Official: FDNY firefighter may have been jolted from bucket
- Man runs back into burning building for 2 cans of beer
- NJ fire dept.'s apparatus fleet 'in dire need of replacing'
- Video: Volunteer firefighter-EMT rescues girl who fell out of bus
- More than 200 firefighters battle massive 5-alarm building blaze