- Ferris Dual Drive Walk-Behind Mower Operator's Manual

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. Remove the deck guard.

3. Raise the mower deck and secure with jackstands.

4. To remove blade for sharpening, use two (2) 15/16”

wrenches to remove the nut from the top of the blade

bolt. (Figure 13).

5. Use a file or hand-held grinder, sharpen blade to fine

edge. Remove all nicks and dents in blade edge. If

blade is severely damaged, it should be replaced.

6. Balance the blade as shown in Figure 14. Center the

blade’s hole on a nail lubricated with a drop of oil. A

balanced blade will remain level.

7. Reinstall each blade with the tabs pointing up toward

deck as shown in Figure 15. The blade spacers,

blade, washer and bolt must be reinstalled in the

exact same order in which they were removed.

Torque bolts to 70-90 ft.lbs. (94-120 N.m.).

WARNING

For your personal safety, blade mounting bolts

must each be installed with a flat washer then

securely tightened. Torque blade mounting bolts

to 70-90 ft.lbs. (94-120 N.m.)

LOOSEN

TIGHTEN

Nail

Figure 13. Removing the Blade

Figure 14. Balancing the Blade

Figure 15. Installing the Blade

A. Bolt

B. Flat Washer

Regular Maintenance