Progressive Turf Equipment TDR-22 1393176 and Above - Manual (Page 38)

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BLADE SERVICING
Be sure safety locks are in place when working on decks in the raised position. The
tractor hydraulic system could fail, causing decks to fall and crush anything under
them.
 Do not handle mower blades with bare hands. Careless or improper handling
may result in serious injury.
 Inspect blades before each use to determine that they are mounted tightly and are
in good condition. Replace any blade that is bent, excessively nicked, worn or
has any other damage. Small nicks can be ground out when sharpening.
Only original equipment blades should be used when replacing worn out mower
blades. They are made of special steel alloys and subjected to rigid heat-treat and
inspection requirements. Substitute blades may not meet these rigid specifications
and MAY BE DANGEROUS.
BLADE REMOVAL AND INSTALLATION
Two, ½ X 1 ¾” grade 5 bolts with locks washers and nuts hold blade to blade
spindle support bar. When changing blades, be sure that these fasteners are in
good condition so they will not come loose during operation.
BLADE SHARPENING
IMPORTANT - When sharpening blades be sure to balance them. Unbalanced
blades will cause excessive vibration, which can damage blade spindle bearings.
Vibration may also cause structural cracks in spindle housing.