Exmark 4500-686 Rev. B Cleaning the Blade Brake Clutch Shield, Clutch Units Only, Maintenance

Models: 4500-686 Rev. B

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Cleaning the Blade

Maintenance

2.Disconnect the wire from the spark plug (see Figure 10 and Figure 11).

3.Pull upward on the back of the cover to unsnap the front and back cover tabs (see Figure 32).

4.Lift off the cover and brush out all the debris around the belt area.

5.Install the belt cover by pushing down on the rear first and then snapping the front onto the mower housing.

6.Connect the wire to the spark plug.

Cleaning the Blade

Brake Clutch Shield

(Blade Brake Clutch Units

Only)

Service Interval: Every 50 hours

1.Stop the engine and wait for all moving parts to stop.

2.Disconnect the wire from the spark plug (see Figure 10 and Figure 11).

3.Drain the gasoline from the fuel tank. Refer to

Emptying the Fuel Tank and Cleaning the Fuel Filter section.

4.Tip the lawn mower onto its right side (air filter up).

5.Remove the blade nuts and the blade (see Figure 25).

Figure 36

1. Screws

2. BBC Shield

6.Remove the three screws holding the BBC shield onto the unit (see Figure 36).

7.Remove the BBC shield and brush or blow all the debris from under the shield and around the BBC system.

8.Install the BBC shield. Tighten the screws to secure the BBC shield to the deck.

9.Install the blade and the two blade nuts.

10.Turn the lawn mower upright.

11.Connect the wire to the spark plug.

Cleaning Under the Cover

Plate (Non-Blade Brake

Clutch Units Only)

Service Interval: Every 50 hours

1.Stop the engine and wait for all moving parts to stop.

2.Disconnect the wire from the spark plug (see Figure 10 and Figure 11).

3.Drain the gasoline from the fuel tank. Refer to

Emptying the Fuel Tank and Cleaning the Fuel Filter section.

4.Tip the lawn mower onto its right side (air filter up).

5.Remove the blade bolt, blade support, and the blade (see Figure 25).

 

 

Figure 37

 

1.

Blade bolt

4.

Cover plate

2.

Blade support

5.

Screw

3.Blade

6.Remove the three screws holding the cover plate onto the unit (see Figure 37).

7.Remove the cover plate and brush or blow all the debris from under the plate.

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Exmark 4500-686 Rev. B Cleaning the Blade Brake Clutch Shield, Cleaning Under the Cover Plate Non-BladeBrake, Maintenance