Stop
A blade or attachment that doesn't stop promptly when released is a serious injury risk. Stop using the equipment immediately and do not operate it again until a professional confirms the brake or clutch is repaired.
Symptoms
- Blade or attachment keeps moving after releasing the control lever
- Delayed stop that takes several seconds longer than normal
- Safety switch doesn't seem to stop the engine or attachment
- Brake pad or band visibly worn if equipped
Likely causes
- CommonWorn or failed blade brakeMany outdoor tools use a mechanical brake to stop the blade quickly, and it can wear out.
- PossibleStuck or worn clutchA clutch that doesn't fully disengage keeps power going to the attachment.
- PossibleFailed safety interlock switchThe switch meant to cut power when the lever is released can fail internally.
What to do
- Stop using the equipment immediately if the blade or attachment doesn't stop within a couple seconds of release.
- Disconnect the spark plug wire or remove the battery before any inspection.
- Check the blade brake pad or band for wear, glazing, or damage if your model has one.
- Inspect the clutch mechanism for proper disengagement when the control is released.
- Test the safety interlock switch for proper function; replace it if it doesn't cut power reliably.
- Do not operate the equipment again until the stopping mechanism is confirmed to work correctly.
- This is a safety-critical repair; have a small-engine shop service the brake or clutch system.
Tools and parts
Blade brake assemblySearch: “outdoor power equipment blade brake replacement”
When to call a pro
This safety system should be repaired by a small-engine shop before the equipment is used again.
Safety
Stop
A blade or attachment that doesn't stop promptly when released is a serious injury risk. Stop using the equipment immediately and do not operate it again until a professional confirms the brake or clutch is repaired.