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 22).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 22. Loosening the Mower Blade for Removal

Inspecting the Mower Blade

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

C

A

blade.

Not

 

 

 

 

 

 

 

 

 

 

 

• Never weld or straighten bent mower blades.

 

 

D

 

 

 

 

 

 

 

 

1. Remove the mower blade from the unit.

 

 

 

 

 

 

 

 

 

 

 

2. Inspect the mower blade (Figures 23 & 24).

 

 

 

 

 

 

 

 

 

 

 

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 23).

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

Figure 23. Inspecting the Mower Blade Tips

Figure 24) and the notch (C) is .25” (6,35 mm)

 

 

A. Mower Blade Cutting Edge

deep or greater.

 

 

 

B. Square Corner

 

 

 

 

 

 

C.) Mower blade is bent or broken.

 

 

C. Air Lift

 

 

 

 

 

 

 

 

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

 

 

D. Wear Measurement - DISCARD Mower Blade If

 

 

 

 

 

 

 

 

 

 

 

sharpen the blades. See SHARPENING THE

greater than .5” (12,7 mm)

 

MOWER BLADES.

 

A B

Figure 24. 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.)

31