Oregon Harvester Handbook page 47

Additional Chain Joining Instructions
Follow these instructions to join your Harvester saw chain with
the rivet spinner:
1 . For Oregon .404"-pitch Harvester Saw Chain (18HX, 19HX),
use take up handle "A" and anvil "A" . Do not use a hammer to
assemble .
2 . For Oregon 3/4"-pitch Harvester Saw Chain (11BC, 11H), use
part number 108724 . Strike the rivet with a hammer once to
set the rivet in the tie-strap before being spun .
3 . After spinning, tension and twist the chain with gloved hands,
and look carefully for any relative movement between joined
tie-straps and their rivets .
4 . No relative movement is acceptable – if observed, the joint
should be spun further .
5 . Placing a drop of oil between the rivet head and the tie-strap
before twisting can make it easier to see relative motion . The
oil will visibly move with capillary action if there is even the
tiniest separation between the parts .
Mechanical Timber Harvesting Handbook
Saw Chain Repair
42