Progressive Turf Equipment Pro-Max 36 - Manual (Page 33)

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BLADE REMOVAL AND INSTALLATION :
Two, 1/2” x 1 3/4” grade 5 bolts with lock washers and nuts hold the 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 that can damage blade spindle bearings.
Vibration may cause structural cracks in mower housing.
Follow original sharpening pattern as shown. Sharpen blade to a razor edge.
Protect hands when sharpening. Do not sharpen back side of blade.