Toro 74191 Operator's Manual page 55

Checking for Bent Blades
1. Rotate the blades until the ends face forward and
backward (Fig. 56). Measure from a level
surface to the cutting edge of the blades
(Fig. 56). Note this dimension.
2. Rotate the opposite ends of the blades forward.
Measure from a level surface to the cutting edge
of the blades at the same position as in step 1
above. The difference between the dimensions
obtained in steps 1 and 2 must not exceed 1/8"
(3 mm). If this dimension exceeds 1/8" (3 mm),
the blade is bent and must be replaced. Refer to
Removing the Blades, and Installing the Blades
on page 53.
Figure 56
POTENTIAL HAZARD
A blade that is bent or damaged could
break apart and pieces could be thrown at
bystanders or at you as you use the mower.
WHAT CAN HAPPEN
Pieces of blade that may be thrown could
seriously injure or kill you or bystanders.
HOW TO AVOID THE HAZARD
Always replace bent or damaged blade with
a new blade.
Never file or create sharp notches in the
edges or surfaces of blade.
Removing the Blades
Blades must be replaced if a solid object is hit, if the
blade is out of balance or is bent. To ensure optimum
performance and continued safety conformance of the
machine, use genuine TORO replacement blades.
Replacement blades made by other manufacturers
may result in non-conformance with safety standards.
Hold the blade end using a rag or thickly-padded
glove. Remove the retainer bolt with its washer and
spacer, and the blade bolts and locknuts from the
blade retainer (Fig. 53).
Installing the Blades
IMPORTANT: The blades are different for
each side and rotate in opposite directions
forcing clippings to the center rear of the
mower. Align cutting edges properly when
installing.
Maintenance
53