Scag Power Equipment SW36A-15KH Section, Engine Air Cleaner, Cutter Blades, A. Blade Inspection

Section 7 R

7.5 Engine Air Cleaner

A. Cleaning and/or Replacing Air Cleaner Element

For any air cleaner, the operating environment dictates the air cleaner service periods. Inspect and clean the air cleaner element after every 100 hours of operation or bi- weekly, whichever occurs first and replace the element if required.

- NOTE -

In extremely dusty conditions it may be necessary to check the element once or twice daily to prevent engine damage.

1.Remove the air cleaner cover. Set aside.

2.Remove the air cleaner and inspect.

3.Clean or replace the air cleaner and foam pre-cleaner as recommended by the engine manufacturer.

4.Replace the air cleaner cover and secure.

7.6 CUTTER BLADES

A. Blade Inspection

1.Remove the ignition key before servicing the blades.

2.Raise the mower deck to the highest position. Place the lanyard pin in the highest cutting height position to prevent the cutter deck from falling.

WARNING

Always wear proper hand and eye protection when working with cutter blades.

3.Check the cutter blades for straightness. If the cutter blades appear bent, they will need to be replaced.

4.If a blade cutting edge is dull or nicked, it should be sharpened. Remove the blades for sharpening. See "Blade Replacement."

- NOTE -

Keep the blades sharp. Cutting with dull blades not only yields a poor mowing job, but slows the cutting speed of the mower and causes extra wear on the engine and the blade drive by pulling hard.

B. Blade Sharpening

- NOTE -

If possible, use a file to sharpen the blade. Using a wheel grinder may burn the blade.

- NOTE -

DO NOT sharpen the blades beyond 1/3 of the width of the blade. See Figure 7-2.

1.Sharpen the cutting edge at the same bevel as the original. See Figure 7-2. Sharpen only the top of the cutting edge to maintain sharpness.

Angle Blade Back

Do Not Cut In

	X Must NOT Exceed
30	1/3 Blade Width
	SGB033

Figure 7-2. Blade Sharpening

2.Check the balance of the blade. If the blades are out of balance, vibration and premature wear can occur. See your authorized Scag dealer for blade balancing or special tools, if you choose to balance your own blades.

WARNING

Do not attempt to straighten a bent blade, and never weld a broken or cracked blade. Always replace it with a new blade to assure safety.

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