Ariens 991039 - Zoom 2452 HD Specifications download pdf (Page 20)

1.Blade

2. CupWasher

3. Bolt

Figure9

Sharpen the Mower Blades

,_ CAUTION: DO NOT sharpen

mower blades while on unit. An

unbalanced mower blade will

cause excessive vibration and

eventual damage to unit. Check

mower blade balance before

reinstalling blades.

NEVER weld or straighten bent

blades.

1. Remove mower blade from unit.

Discard mower blade if:

More than 1/2 in. (1.27 cm) of metal is

removed.

Air lifts become eroded.

Blade is bent or broken.

2. Sharpen mower blade by removing an

equal amount of material from each end

of mower blade. DO NOT change angle

of cutting edge or round the corner of the

mower blade.

3. Check mower blade balance.

Slide mower blade on an unthreaded

bolt. A balanced blade should remain in

a horizontal position. If either end of

mower blade moves downward, sharpen

the heavy end until blade is balanced.

4. Install mower blade(s) on unit.

5. Tighten the bolts to a torque of 115-125

Ibf-ft (156-169.5 N°m).

DO NOT Sharpen to This Pattern

/ 1

DIS

1/2 in. (1.27 cm)

3 / OT0792

Sharpen to This Pattern

1. Cutting Edge 3. Air Lift

2. Square Erosion

Corner 4. Air Lift

Figure 10

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Ariens 991039 - Zoom 2452 HD Specifications Page 20

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