Saw Chain
Mechanical Timber Harvesting Handbook
42
Saw Chain Repair
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.
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