Sickle Mower Adjustment. Adjusting the Belt Tension and Replacing a belt on a sickle mower 3 point tractor implement. – Ranch Hand Tips In this video I’ll show you how to replace or simply adjust your tension on a Sperry New Holland 451 Sickle Mower. Sickle Mowers are often called reciprocating mowers, bar mowers, sickle-bar mowers, sicklebar mowers or finger-bar mowers.

Sickle Mower Belt 451 New Holland