Maintenance

Figure 18

1.Install bushing in blade prior to installing bushing in spindle.

B.Install bushing/blade assembly into spindle.

Figure 19

WARNING

Incorrect installation of the blade or components used to retain the blade can be dangerous. Failure to use all original components and assembled as shown could allow a blade or blade component to be thrown out from under the deck resulting in serious personal injury or death.

Always install the original Exmark blades, blade bushings, and blade bolts as shown.

Check Safety Interlock System

Service Interval: Before each use or daily

CAUTION

If safety interlock switches are disconnected or damaged the machine could operate unexpectedly causing personal injury.

Do not tamper with the interlock switches.

Check the operation of the interlock switches daily and replace any damaged switches before operating the machine.

Understanding the Safety Interlock System

The safety interlock system is designed to prevent the mower blades from rotating unless:

1.Use wrench here for blade installation. This nut has been torqued to 130-160 ft-lb (176–217 N-m)

2.Torque to 50-60 ft-lb (68-81 N-m) Apply lubricant to threads as needed to prevent seizing. Copper-based anti-seize preferable. Grease acceptable substitute.

• The right side motion control lever is moved to

the center, operating position.

• The blade control switch (PTO) is pulled on.

The safety interlock system is designed to stop

the mower blades if you move or release the right

side motion control lever into the PTO disengage

position.

C.Apply lubricant to threads of blade bolt as needed to prevent seizing. Copper-based anti-seize preferable. Grease acceptable substitute. Install blade bolt finger tight. Place wrench on the top spindle nut then torque the blade bolts to 50-60 ft-lb (68-81 N-m).

• The right side motion control lever is moved to

the center, operating position, the parking brake

is engaged, and the blade control switch (PTO) is

pulled on.

Checking the Safety Interlock System

1.Start the engine.

2.Set the parking brake.

3.Move the motion control levers forward.

The engine should initiate shutdown after momentary pause.

4.Start the engine and release the parking brake.

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Image 30
Exmark 4500-759 Rev A manual Check Safety Interlock System, Safety interlock system is designed to stop

4500-759 Rev A specifications

The Exmark 4500-759 Rev A represents an innovative leap in turf management equipment, designed to enhance the efficiency and effectiveness of landscaping professionals. As a leading name in the lawn care industry, Exmark has equipped this model with state-of-the-art technologies and features that cater to both commercial and residential users.

One of the standout characteristics of the Exmark 4500-759 Rev A is its robust engine performance. Powered by a high-efficiency engine, it delivers consistent power and torque, allowing for seamless operation across diverse terrains. This engine is complemented by advanced cooling systems, ensuring optimal temperature management during extended use, which ultimately prolongs the equipment's lifespan.

The cutting system on the 4500-759 Rev A is another highlight, featuring Exmark’s patented cutting deck design. The advanced blade and deck configuration promotes superior grass dispersion and minimizes clumping, resulting in a polished finish that landscapers strive to achieve. The adjustable cutting height feature allows users to tailor the lawn height to their preference, making it versatile for various types of grass and seasonal conditions.

Operator comfort and ease of use are paramount in the design of the Exmark 4500-759 Rev A. The ergonomically designed seat and user-friendly controls provide a smooth driving experience. The intuitive dashboard offers easy access to critical information about the mower’s operation, ensuring that operators can focus on the task at hand without any distractions.

Additionally, this model incorporates innovative technology with its integrated GPS tracking system, which enhances efficiency by allowing users to monitor location and performance remotely. This feature not only aids in job tracking but also supports maintenance scheduling, optimizing service intervals and reducing downtime.

Furthermore, the Exmark 4500-759 Rev A is built with durability in mind. The heavy-duty frame and reinforced components withstand rigorous use, ensuring long-lasting performance in demanding environments. The model's versatility enables it to adapt for various landscaping tasks, from mowing to mulching, making it a valuable tool for professionals.

In conclusion, the Exmark 4500-759 Rev A is a powerful and versatile mower equipped with advanced technologies that simplify lawn care while maximizing results. Its combination of performance, comfort, and durability positions it as an essential choice for those in the landscaping industry, empowering users to achieve their desired outcomes with confidence.