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.

33

Page 33
Image 33
Exmark 4500-686 Rev. B manual Screws BBC Shield

4500-686 Rev. B specifications

The Exmark 4500-686 Rev. B is a cutting-edge commercial mower that embodies the perfect blend of performance, durability, and user-friendly features. Designed for professional landscapers and grounds maintenance professionals, this mower is built to handle the rigorous demands of large properties and commercial applications.

One of the standout features of the Exmark 4500-686 Rev. B is its powerful engine. Equipped with a robust EFI (Electronic Fuel Injection) engine, it delivers exceptional power and fuel efficiency. The engine's advanced technology allows for quicker starts and better throttle response, ensuring that users can tackle their mowing tasks without any delays. This efficiency translates into reduced operating costs and less time spent refueling.

Another notable technology integrated into this mower is the UltraCut deck system. The 4500-686 Rev. B features a precision-engineered cutting deck that provides a superior cutting performance, offering an even and professional finish to any lawn. The design promotes optimal airflow beneath the deck, resulting in better grass lift and dispersion, which reduces clumping and enhances the quality of the cut. Additionally, the cutting height is easily adjustable, allowing operators to customize their mowing according to specific turf conditions.

User comfort is a paramount consideration in the design of the Exmark 4500-686 Rev. B. The mower is equipped with an ergonomic seat and controls that minimize operator fatigue during extended use. The full-suspension seat absorbs shocks and vibrations, while the easy-to-use controls allow for intuitive operation, ensuring that mowing is a seamless and productive experience.

Durability is another key characteristic of the 4500-686 Rev. B. Built with high-quality materials and components, this mower is designed to withstand the wear and tear of everyday use. The frame is reinforced to provide added strength, while the corrosion-resistant coating ensures that it maintains its appearance and functionality over time.

In conclusion, the Exmark 4500-686 Rev. B is an exceptional choice for anyone looking for a reliable and efficient commercial mower. With its powerful EFI engine, advanced cutting technologies, emphasis on operator comfort, and rugged build quality, this mower offers unmatched performance in the field. Whether for professional landscaping or maintaining large properties, the Exmark 4500-686 Rev. B is engineered to meet the demands of any mowing job.