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

 

 

 

 

 

 

 

 

Reproduction

 

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

for

 

 

 

 

resulting in serious personal injury or death.

 

 

 

 

 

 

 

• Inspect the mower blade every 25 hours or at

 

 

 

 

 

least once a year.

Not

 

 

 

 

 

 

 

• If the mower blade hits a solid object, s op

 

 

 

C

A

 

the engine immediately and inspect the mower

 

 

 

 

 

blade.

 

 

 

D

 

 

 

 

• Never weld or straighten bent mower blades.

 

 

 

 

 

 

 

1. Remove the mower blade from the unit. See

 

 

 

 

 

 

 

Removing the Blade.

 

 

 

 

 

 

 

 

2. Inspect the mower blade (Figures 27 & 28). Disca d

 

 

 

 

 

 

 

the mower blade if it has any of the below

 

 

 

 

 

 

 

conditions.

 

 

 

C

 

 

 

 

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

 

 

 

 

 

 

 

 

 

Figure 27. inspecting the Mower Blade Tips

 

metal removed from previous sharpening or w ar (D,

 

 

 

 

 

A. Mower Blade Cutting Edge

 

Figure 28).

 

 

 

 

 

 

 

B. Square Corner

 

 

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

 

 

 

 

 

 

C. Air Lift

 

 

 

 

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

D. Wear Measurement - DISCARD Mower Blade If

C.) Mower blade is bent or broken.

greater than .5” (12,7 mm)

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

 

the blades. See Sharpening the Mower Blades.

 

A B

Figure 28. inspecting the Mower Blade Air Lifts

A.New Mower Blade

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

C.Mower Blade in Dangerous Condition

C

(If notch measures .25” (6,35 mm) or greater DO NOT USE Replace with new mower blade.)

29