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)

J

Blade Adapter

Blade

 

 

 

Blade

 

 

 

 

 

 

Belleville

 

 

 

 

Blade Adapter

Washer

 

 

 

 

 

 

 

 

File

 

 

 

 

 

 

 

Screwdriver

Blade is balanced

 

Mulching

 

 

when parallel to

 

 

 

 

the ground.

 

Blade

 

 

 

 

 

Belleville Washer

I

 

I

Flat Washer

 

Bolt

Figure 14

I

Ground

I

Figure 15

F-98526

17

Page 17
Image 17
Murray 22506x9A, F-98526 manual HOW to Remove the Blade, HOW to Sharpen the Blade

22506x9A, F-98526 specifications

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