Regular Maintenance

SERVICING THE MOWER BLADES

Removing the Mower Blade

CAUTION

Avoid injury. Mower blades are sharp.•Always wear gloves when handling mower blades or working near blades.

1.To remove the mower blade, wedge a wooden block between the mower blade and the mower deck housing to keep the blade from turning and remove the mower blade mounting bolt with a 15/16” wrench (Figure 24).

Inspecting the Mower Blade
Figure 24. Loosening the Mower Blade for Removal

DANGER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

A

Avoid injury. A worn or damaged blade can

 

 

 

 

 

 

 

 

 

 

 

 

break, and a piece of the mower blade could be

 

 

 

 

 

 

 

 

thrown into the operator’s or bystander’s area,

 

 

 

 

 

 

 

 

 

resulting in serious personal injury or death.

 

 

 

 

 

 

 

 

 

 

Reproduction

• Inspect the mower blade every 25 hours or at

for

 

 

 

 

 

 

least once a year.

 

 

 

 

 

 

 

 

 

 

• If the mower blade hits a solid object, stop

 

 

 

 

 

 

 

 

 

the engine immediately and inspect the mower

 

 

 

 

 

 

 

 

 

blade.

Not

 

 

 

 

 

C

A

• Never weld or straighten bent mower blades.

 

 

 

 

 

 

 

 

 

1. Remove the mower blade from the unit.

 

 

D

 

 

 

 

 

 

2. Inspect the mower blade (Figures 25 & 26).

 

 

 

 

 

 

 

 

 

Discard the mower blade if it has any of the bel

w

 

 

 

 

 

 

conditions:

 

 

 

 

 

 

 

 

 

 

A.) Has more than .5” (12,7 mm) of the mower

 

 

 

 

 

 

 

 

 

blade metal removed from previous shar ening or

 

 

 

 

 

 

wear (D, Figure 25).

 

 

 

 

C

 

 

B.) The air lifts are excessively erod d (B & C,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 25. Inspecting the Mower Blade Tips

Figure 26) and the notch (C) is .25” (6,35 mm)

 

 

deep or greater.

 

 

 

A. Mower Blade Cutting Edge

C.) Mower blade is bent or broken.

 

 

B. Square Corner

 

 

 

 

 

 

 

 

 

 

 

3. If the cutting edges are not sharp or have nicks,

C. Air Lift
D. Wear Measurement - DISCARD Mower Blade If

sharpen the blades. See SHARPENING THE

greater than .5” (12,7 mm)

MOWER BLADES.

 

A B

Figure 25. Inspecting the Mower Blade Air Lifts

C

A.New Mower BladeB.Mower Blade at Wear Limit (A notch begins to form)

C.Mower Blade in Dangerous Condition (Notch measures .25” (6,35 mm) or greater DO NOT USE. Replace with new mower blade.)

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