MAINTENANCE
BLADE SERVICE
WARNING: Before you inspect the blade or the blade adapter,
plug. ff the blade hits an object,
,_ disconnect the wire to the spark stop the engine. Disconnect the
wire to the spark plug. Check the unit for damage.
Frequently check the blade for wear or dam- age such as cracks. Frequently check the bolt that holds the blade. Keep the bolt tight. If the blade hits an object, stop the engine. Discon- nect the wire to the spark plug. Check the blade adapter for damage. Check for a bent or damaged blade, a badly worn blade, or other damage. Before you operate the unit, dam- aged parts must be replaced with factory re- placement parts. For safety, replace the blade every two years. Keep a sharp edge on the blade. A blade that is not sharp wilt cause the
ends of the grass to become brown. Remove the blade as follows.
HOW TO REMOVE THE BLADE
WARNING: Before you remove
the spark plug. The blade has the blade, disconnect the wire to sharp edges. When you hold the
blade, use gloves or cloth materi- al to protect your hands.
1.Drain the fuel tank.
2.Lift the side of the mower that has the muffler or spark plug.
3.Use a piece of wood to keep the blade from rotating.
4.Remove the bolt that holds the blade.
5.Check the blade according to the "Blade Service" instructions. Replace a badly worn or damaged blade with a factory re- placement blade.
6.Mount the blade with the curved edges to- ward the housing. If the blade is upside down, the blade will not cut correctly and can cause an accident.
7.Fasten the blade with the original wash- ers and bolt. Make sure the outside rims of the Belleville washers are toward the blade (Figure 14).
8.Tighten the bolt that holds the blade to a torque of 30 foot pounds.
WARNING: Always keep the bolt
that holds the blade tight. A loose bolt or blade can cause an acci-
dent.
HOW TO SHARPEN THE BLADE
WARNING: Vibration is the result
if the blade is not correctly bal- anced. A blade that is damaged with cracks can break and cause an accidenL
1.Sharpen the blade two times a year or ev- ery 25 hours.
2.If the blade is on the unit, do not sharpen. Remove the blade according to the in- structions in "How To Remove The Blade".
3.Clean the blade with a brush, soap, and water. Check the blade. Look for cracks,
nicks, or other damage. Replace a blade that is badly worn, bent, or damaged with a factory replacement blade.
4.Sharpen the blade with a file. Make sure you keep the original beveled cutting edge (Figure 15).
Continued following page)
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Blade Adapter | Blade |
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| Belleville |
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Blade Adapter | Washer |
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| File | |
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| Screwdriver | Blade is balanced | ||
| Mulching |
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| when parallel to | |
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| the ground. | |
| Blade |
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| Belleville Washer | I |
| I | |
Flat Washer |
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Bolt | Figure 14 | I | Ground | I | Figure 15 |
17 |
