Hydro Pump Spring Tension Setting, Waste Disposal

Maintenance

2.Check the drive tire pressures and tire circumferences as stated in Check the Tire Pressures section in Maintenance.

3.Run the unit and observe the tracking on a level, smooth, hard surface such as concrete or asphalt.

4.If the unit tracks to one side or the other, turn the quick track knob. Turn the knob right to “steer” right, turn the knob left to “steer” left.

Hydro Pump Spring Tension Setting

1.For medium or heavy duty drive conditions such as operation with a sulky on steep slopes, a higher spring force may be required on the hydro pump control arms to prevent the drive system from stalling.

2.For a heavier drive setting, relocate the spring anchor link as shown in Figure 13. The spring anchor links are located under the engine deck on the left and right hand sides.

Note: In “medium” or “heavy duty” positions, the drive lever forces at the upper handle will also be increased.

Figure 19

1.	Heavy duty	3.	Standard
2.	Medium duty	4.	Retaining bolt

Electric Clutch Adjustment

No adjustment necessary.

Cleaning

Clean Grass Build-Up Under Deck

Service Interval: Before each use or daily

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

2.Raise deck to the transport (maximum cutting height) position. Lift the front of unit and support unit using jack stands or equivalent support.

3.Clean out any grass build-up from underside of deck and in discharge chute.

Waste Disposal

Motor Oil Disposal

Engine oil and hydraulic oil are both pollutants to the environment. Dispose of used oil at a certified recycling center or according to your state and local regulations.

Battery Disposal

DANGER

Battery electrolyte contains sulfuric acid, which is poisonous and can cause severe burns. Swallowing electrolyte can be fatal or if it touches skin can cause severe burns.

•Wear safety glasses to shield eyes, and rubber gloves to protect skin and clothing when handling electrolyte.

•Do Not swallow electrolyte.

•In the event of an accident, flush with water and call a doctor immediately.

Federal law states that batteries should not be placed in the garbage. Management and disposal practices must be within relevant federal, state, or local laws.

If a battery is being replaced or if the unit containing the battery is no longer operating and is being scrapped, take the battery to a local certified recycling center. If no local recycling is available return the battery to any certified battery reseller.

4500-528 specifications

The Exmark 4500-528 is a formidable piece of equipment in the realm of professional landscaping and lawn maintenance. Renowned for its robust build and high-performance capabilities, this zero-turn mower is engineered for efficiency, agility, and maneuverability, making it an ideal choice for both commercial landscapers and passionate homeowners.

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The 4500-528 incorporates Exmark’s patented UltraCut deck design, which is specifically designed to optimize mowing efficiency. The deck's advanced cutting technology ensures a clean, even cut, promoting healthier grass growth while minimizing clumping and discharge issues. Furthermore, the mower is available in different cutting deck sizes, allowing users to choose based on their specific requirements and preferences.

Operator comfort is another hallmark of the Exmark 4500-528. The mower features a comfortable, adjustable seat, allowing users to maintain optimal posture during extended mowing sessions. With intuitive controls and a user-friendly interface, operators can easily manage the mower's numerous functions, including speed adjustments and deck height settings.

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In summary, the Exmark 4500-528 is a premier zero-turn mower that combines power, precision, comfort, and durability, making it an essential asset for anyone serious about lawn care. Whether for commercial purposes or personal use, this mower delivers exceptional performance and extensive versatility.