Ferris Industries IS4500ZC28D61CE - Manual (Page 27)

25
Regular Maintenance
SERVICING THE MOWER BLADES
1. Blades should be sharp and free of nicks and dents.
If not, sharpen blades as described in following
steps.
2. To remove blade for sharpening, use a 1” wrench on
the flats of the spindle shaft while removing the blade
mounting bolt with a 15/16” wrench (Figure 26).
3. Use a file to sharpen blade to fine edge. Remove all
nicks and dents in blade edge. If blade is severely
damaged, it should be replaced.
4. Balance the blade as shown in Figure 27. Center the
blade’s hole on a nail lubricated with a drop of oil. A
balanced blade will remain level.
5. Reinstall each blade with the tabs pointing up toward
deck as shown in Figure 28. Secure with a bolt and
flat washer and torque bolts to 70 ft.lbs. (94 N.m.).
WARNING
Mower blades are sharp. For your personal
safety, do not handle mower blades with bare
hands. Careless or improper handling of blades
may result in serious injury.For your personal
safety, blade mounting bolts must each be
installed with a flat washer then securely
tightened. Torque blade mounting bolts to
70 ft.lbs. (94 N.m.)
A
B
TIGHTEN
Figure 27. Balancing The Blade
Figure 28. Installing The Blade
A. Blade Bolt
B. Flat Washer
Nail
LOOSEN
Figure 26. Removing the Blade