Chainsaw clutch drum assembly. When the engine's speed increases, the clutch engages the clutch drum and gear to drive the chain. If the chain isn't turning, the clutch drum may be defective.
Assembly-clutch drum w/bearing
Kit chain brake sas
Drum and sprocket gear assembly
C/brake assy pln pr
Chain tension adjustment gear screw
Chain tension adjustment gear
Clutch drum and bearing. Pitch .325-Teeth 7.