Dolmar PS-6400 - Chain Brake System; Chain Brake Operation Principle

9Repair Manual PS-6400/PS-7300/PS-7900
1
2
03 CHAIN BRAKE
Chain brake
The chain brake stops the chain within 0.1 seconds
in the event of kickback.
The brake band 2 encircles the clutch drum 380°.
A spring 1 pulls the brake band around the clutch
drum.