Norton BBL547 Owner's Manual page 17

II. OPERATION
A. How to Mount Blade
Be sure blade shaft collars and arbor are free of dirt and all foreign material before
mounting blade on the arbor shaft. Tightening blade against an uneven surface
can cause fracture of an abrasive blade or cause to run-out of alignment, causing
excessive blade wear.
When tightening bolt against outside blade shaft collar, be sure to tighten enough
to hold the blade firmly without slipping but do not over tighten excessive
tightening can cause fracture of abrasive blades.
Using blade shaft wrench (in bracket) remove the blade shaft bolt and loosen
collar.
Place the blade on the arbor, and attach the loose collar and tighten the blade
shaft bolt securely.
B. "Step Cutting " With Abrasive Blades
Use "step cutting" without exception when cutting wet or dry with abrasive
blades. "Jam cutting", which is discussed and illustrated in the section following,
is to be used only with wet and dry cutting diamond blades.
1. Clamp and hold material firmly against the backstop on conveyor cart. Be
certain the material does not slip or rock during cutting operation, as this can bind
blade, causing excessive wear and fracture.
2. Move the conveyor cart near the blade, and pull down on the head until the
blade is lowered to a point where it will lightly contact the top of the material. Then
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