Service Manual

Service Dealer’s Guide to Great Quality of Cut 3 - 3
Inspecting and Sharpening the Blade
Installing the Blade
1. Install the blade onto the spindle or blade driver. If
the blade has curved tips (sails), they should be
pointing towards the mower housing (Figure 9). If
the bolt or nut uses a nylon patch or similar lock
feature, it should be replaced every third time it
has been removed. The patch will wear out with
use. If a lock washer is used, inspect it for damage
and replace if warranted.
Figure 9
MVC-713X.jpg
2. Refer to the owner's manual for your particular
unit for proper blade bolt/nut torque. Some
common Toro, Toro Wheel Horse, and Lawn-Boy
torque values are shown in the following table.
Blade Bolt (Nut) Torque Guide for Lawn-Boy, Toro,
and Toro Wheel Horse Mowers built in 2002
Model ft-lbs Nm
Lawn-Boy
21-inch walk behind
mowers
47 63
Toro
21-inch and 22-inch walk
behind mowers with split
washer on blade bolt
50 68
Toro
21-inch and 22-inch walk
behind mowers with
domed or flat washer on
blade bolt
60 82
Toro Wheel Horse
25-inch, 32-inch, 38-inch,
44-inch mowers
45–60 61–81
Toro Wheel Horse
36-inch, 42-inch, 48-inch,
52-inch, 60-inch mowers
80–100 109–136