Section 7
7.8 DRIVE BELTS
All drive belts are spring loaded and
If you experience frequent belt wear or breakage, see your authorized Scag service center for belt adjustment.
7.9CUTTER 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 positon 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.
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.
4.If a blade cutting edge is dull or nicked, it should be sharpened. Remove the blades for sharpening. See "Blade Replacement."
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
If possible, use a file to sharpen the blade. Using a wheel grinder may burn the blade.
DO NOT sharpen the blades beyond 1/3 of the width of the blade. See Figure
1.Sharpen the cutting edge at the same bevel as the original. See Figure
Angle Blade Back
Do Not Cut In
| X Must NOT Exceed | |
30 | 1/3 Blade Width | |
SGB033 | ||
|
Figure 7-9 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.
C. Blade Replacement
WARNING:
Always wear proper hand and eye protection when working with cutter blades.
1.Remove the ignition key before replacing the blades.
2.Raise the mower deck to the highest position. Place the lanyard pin in the highest cutting height positon to prevent the cutter deck from falling.
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