Simplicity 7800071 Servicing The Mower Blades, Regular Maintenance, Blade Removal, C. Blade Nut

Regular Maintenance

WARNING

For your personal safety, do not handle the sharp mower blades with bare hands. Careless or improper handling of blades may result in serious injury.

WARNING

For your personal safety, blade mounting hardware must be installed with two blade washers, then securely tightened to noted torque.

LOOSEN

SERVICING THE MOWER BLADES

Service Interval: Every 10 Hours or As Required

1.Remove mower deck (see “Mower Deck Removal”).

2.See Figure 14. To remove blade for sharpening, use a block of wood to prevent blade rotation while loos- ening the hardware.

3.Remove the nut (C, Figure 16), blade washers (B), and blade.

4.Use a file to sharpen blade to a fine edge. If blade is damaged, it must be replaced.

5.Balance the blade as shown in Figure 15. Center the blade’s hole on a nail lubricated with a drop of oil. A balanced blade will remain level.

6.Reinstall the blade (Figure 16) with the tabs pointing up toward the mower deck as shown.

7.Reinstall the blade washers (B, Figure 16), concave side up, and nut (C). Use a wooden block (A) to pre- vent blade rotation while tightening the hardware.

Torque hardware to 80-90 ft-lbs.

Figure 14. Blade Removal

Workbench

Nail

Figure 15. Balancing The Blade

Figure 16. Blade Installation

A.4x4 Wood Block

B.Blade Washer (2)

C.Blade Nut

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