Leaf Chain – YT902977419

Yale's mast leaf chain runs over the mast sheaves and carries the fork carriage up and down under load on Yale lift trucks. It is a Yale-referenced chain under part number 902977419, fitting Yale model series D5, F2, FE, GM 2.4L, and VA, so it covers a defined set of Yale mast builds rather than a universal cut length.

A leaf chain is a stack of steel plates joined by hardened pins, chosen for lifting duty because the flat-plate construction carries high static and dynamic load in a compact section as it flexes over the sheave. Lift chain is a wear item by design. Under constant load cycling the pins and plate holes wear, and the chain elongates measurably over its service life, which is why maintenance programs check lift chain for stretch against a wear gauge. Once a chain reaches its elongation limit it is replaced as a complete run, not spliced or patched, because a stretched or worn lift chain is a carriage-drop and safety risk on a loaded mast.

Replacing it at the wear limit restores the correct chain length and keeps the carriage riding true in the mast. Forklifts Etc. supplies it as the replacement mast chain for the Yale series above.