Removing The Blades - Toro Z Master Professional 7000 Series Operator's Manual

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.
WARNING
Contact with a sharp blade can cause serious injury.
Wear gloves or wrap sharp edges of the blade with
a rag.
1. Hold the blade end using a rag or thickly-padded glove.
2. Remove the blade bolt, spring disk and blade from the
spindle shaft (Figure 83).
Sharpening the Blades
WARNING
When sharpening blade, pieces of blade could be
thrown and cause serious injury.
Wear proper eye protection when sharpening blade.
1. Use a file to sharpen the cutting edge at both ends of
the blade (Figure 81). Maintain the original angle. The
blade retains its balance if the same amount of material
is removed from both cutting edges.
Figure 81
1. Sharpen at original angle
2. Check the balance of the blade by putting it on a blade
balancer (Figure 82). If the blade stays in a horizontal
position, the blade is balanced and can be used. If the
blade is not balanced, file some metal off the end of
the sail area only (Figure 83). Repeat this procedure
until the blade is balanced.
Figure 82
1. Blade 2. Balancer
Installing the Blades
1. Install the blade onto the spindle shaft (Figure 83).
Important: The curved part of the blade must be
pointing upward toward the inside of the mower to
ensure proper cutting.
2. Install the curved washer and blade bolt. The curved
washer cone must be installed toward the bolt head
(Figure 83). Torque the blade bolt to 85-110 ft-lb
(115-150 N-m).
1. Sail Area of Blade
2. Blade
55
Figure 83
3. Curved washer
4. Blade Bolt