Chain Catcher; Chain Shot Guard - Oregon Harvester Handbook

Important Safety Information

Chain Catcher

A chain catcher prevents a saw chain that has escaped from the
bar groove from being "thrown" from the saw box . Chain catchers
resemble a sturdy spool and are placed in line with the drive
sprocket . A small gap on one side of the chain catcher allows
installation and removal of the saw chain .

Chain Shot Guard

A chain shot guard is a piece of material mounted behind the drive
sprocket; it performs two functions:
1 . It absorbs the energy of a broken saw chain coming into
contact with the saw box, reducing the risk of ejected parts
during a chain shot event .
2 . It acts as an extension of the saw box, reducing the risk of a
thrown loop of saw chain (or saw chain parts) escaping the
saw box .
Chain shot guard
5
Chain
catcher
Mechanical Timber Harvesting Handbook