Simplicity 7100 Series Operator's Manual page 22

Normal Care
5. Balance the blade as shown in figure 14.
Center the blade's center hole on a nail
lubricated with a drop of oil. A balanc¬
ed blade will remain level.
WARNING
For your personal safety, blade mount¬
ing capscrews must be installed with
the cup washer and spline washer and-
then securely tightened. Torque blade
mounting capscrews to 45 to 55 ft. lbs.
(61 to 74.6 N.m).
6. Reinstall each blade with the tabs point¬
ing up toward deck and secure with a cap¬
screw, cup washer, and spline washer.
Be sure spline washer is aligned with
shaft splines. Use a wooden block to
prevent blade rotation (figure 15) and
torque capscrews from 45 to 55 ft. lbs.
(61 to 74.6 N.m).
Figure 15. Install Blade