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, use a 1” wrench on the flats of the spindle shaft and remove the mower blade mounting bolt with a 15/16” wrench (Figure 26).

2. If there are no flats on the spindle shaft, wedge a

 

 

 

 

 

 

wooden block between the mower blade and the mower

 

 

 

Figure 26. Loosening the Mower Blade for Removal

deck housing to keep the mower blade from turning.

 

 

 

Inspecting the Mower Blades

 

 

B

 

 

 

 

A

DANGER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

for

 

 

 

 

 

 

personal injury or death.

 

 

 

 

 

 

 

• Inspect the mower blade every 25 hours or at least

 

 

 

 

 

 

once a year.

 

 

 

 

 

 

 

• If the mower blade hits a solid object, stop he

 

C

A

 

 

engine immediately and inspect the mower blade.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Never weld or straighten bent mower blades.

 

D

 

 

 

 

 

 

1. Remove the mower blade from the unit. See

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Removing the Blade.

 

 

 

 

 

 

 

 

 

2. Inspect the mower blade (Figures 27Not& 28). Disca d

 

 

 

 

 

 

 

 

the mower blade if it has any of the below

 

 

 

 

 

 

 

 

conditions.

 

 

 

 

 

 

 

 

 

A.) Has more than .5” (12,7 mm) of the mow r blade

 

C

 

 

 

 

 

 

metal removed from previous sharpening or w ar (D,

 

 

 

 

 

 

 

 

 

Figure 27. Inspecting the Mower Blade Tips

Figure 27).

 

 

 

 

A. Mower Blade Cutting Edge

 

 

B.) The air lifts are excessively eroded (B & C, Figure

 

 

 

 

B. Square Corner

 

 

 

28) and the notch (C) is .25” (6,35 mm) deep or greater.

 

 

 

C. Air Lift

 

 

 

 

 

 

C.) Mower blade is bent or broken.

 

 

D. Wear Measurement - DISCARD Mower Blade If

 

Reproduction

than .5” (12,7 mm)

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

greater

 

 

 

 

the blades. See Sharpening the Mower Blades.

A B

Figure 28. inspecting the Mower Blade Air Lifts

C

A.New Mower Blade

B.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.)

26

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