Can I shorten or extend a track chain by removing or adding links?

Question

VANROCK Track Solutions · Accepted Answer

Yes, a track chain can often be shortened by removing a link assembly, and in some cases extended by adding a matching link assembly. The key is that the chain must stay the correct pitch for the sprocket and the undercarriage, and the adjustment range must still be within the machine’s limits.

In practice, shortening is more common than extending. If the adjuster is near the end of its travel and the chain is still too loose, removing one link can bring the idler back into a usable position and restore proper tension. If the chain is already badly worn, though, shortening it only hides the problem for a while; worn pins and bushings increase pitch, which can accelerate sprocket wear and lead to poor engagement or derailment.

Before changing chain length, check both sides of the machine and compare wear. One side should not be repaired differently from the other unless the undercarriage wear pattern truly calls for it. Also confirm the chain type: sealed and lubricated chains, dry chains, and certain rubber track systems may have different service limits and repair methods. If OEM machine brand documentation is being followed, note that VANROCK is an independent manufacturer and is not affiliated with any OEM brand named in the manual.

Good decision points are:
• Track adjuster position is near minimum or maximum travel
• Chain sag cannot be corrected with normal tensioning
• Sprocket teeth show matching wear with the chain pitch
• Pins, bushings, and rails are worn enough that a full undercarriage review is needed

Common mistakes to avoid are mixing worn and new components without checking pitch, changing only one side without measuring the other, or assuming an extra link will solve a chain that is actually at end-of-life. For the best result, measure the chain, inspect the rollers, idlers, sprockets/segments, and adjuster, then request a quote through VANROCK’s appointed dealer network for the correct undercarriage parts.