Maintenance

CAUTION

Raising the mower deck for service or maintenance relying solely on mechanical or hydraulic jacks could be dangerous. The mechanical or hydraulic jacks may not be enough support or may malfunction allowing the unit to fall, which could cause injury.

Do Not rely solely on mechanical or hydraulic jacks for support. Use adequate jack stands or equivalent support.

3.Remove the pump drive belt.

4.Place a catch pan under the hydro.

5.Carefully clean area around the filters. It is important that no dirt or contamination enter the hydraulic system.

6.Using a socket, unscrew filters to remove and allow oil to drain.

7.Before installing the new filters, apply a thin coat of Exmark Premium Hydro oil on the surface of the two rubber seals.

8.Install the new filters and torque to 14 ft-lb (19 N-m).

9.Fill the hydraulic system as stated in Check Hydraulic Oil Level section.

Exmark Premium Hydro Oil is recommended. Refer to the chart for an acceptable alternative:

Hydro Oil

Change Interval

Exmark Premium Hydro

500 Hours

Oil (Preferred)

 

Mobil 1 15W50

250 Hours

10.Remove the catch pan and properly dispose of hydro oil and filter according to local codes.

11.Re-install the pump drive belt.

12.Start engine and move throttle control ahead to full throttle position. Move the speed control levers to the full speed and run for one minute. Shut down the machine, allow the hydros to cool and recheck oil level.

13.Remove the jack stands.

Note: Do Not change the hydraulic system oil (except for what can be drained when changing filter),

unless it is felt the oil has been contaminated or been extremely hot.

Changing oil unnecessarily could damage hydraulic system by introducing contaminants into the system.

Wheel Hub - Slotted Nut Torque Specification

Service Interval: After the first 100 hours

Every 500 hours thereafter

When tightening the slotted nut on the wheel motor tapered shaft:

1.Remove and discard the cotter pin.

2.Torque the slotted nut to 200 ft-lb (271 N-m).

3.Check distance from bottom of slot in nut to inside edge of hole. Two threads (0.1 inch) or less should be showing.

 

Figure 25

1. 0.1 inch max

2. No more than two

 

threads (0.1 inch max)

 

should be showing here.

4.If more than two threads (0.1 inch) are showing remove nut and install washer (P/N 1-523157) between hub and nut.

5.Torque the slotted nut to 200 ft-lb (271 N-m).

6.Then tighten nut until the next set of slots line up with the cross hole in shaft. Do Not loosen nut to align the slot. If required, tighten to the next set of slots.

7.Install new cotter pin (P/N 1-806800).

Note: Do Not use anti-seize on wheel hub.

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Image 36
Exmark 4500-466 manual Wheel Hub Slotted Nut Torque Specification
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4500-466 specifications

The Exmark 4500-466 is a cutting-edge zero-turn mower designed for those who demand precision, reliability, and efficiency in their lawn care routines. As part of Exmark's celebrated lineup, the 4500-466 delivers exceptional performance and versatility, making it an ideal choice for both residential and commercial users.

One of the standout features of the Exmark 4500-466 is its robust engine. Equipped with a powerful engine that boasts a high horsepower rating, this mower can tackle even the toughest of mowing conditions. The engine is engineered for optimal efficiency and longevity, ensuring that users can rely on it for many seasons of dependable service.

The Exmark 4500-466 also incorporates innovative cutting technologies that set it apart from traditional mowers. Its patented UltraCut deck technology provides a superior cut quality, allowing for precise trimming of grass, ensuring an even and professional-looking lawn. The 60-inch cutting width enables users to cover larger areas in less time while still maintaining a clean cut.

Comfort and usability are additionally prioritized in the design of the Exmark 4500-466. The ergonomic controls and adjustable seat provide operators with a comfortable mowing experience. The reduced vibration and improved suspension system offer a smooth ride, even over uneven terrain. This attention to user comfort is essential, especially for those who spend extended periods mowing.

Another significant feature is the machine's advanced drive mechanics. The dual hydrostatic drive system ensures smooth handling and intuitive control, making it easy to maneuver around obstacles and tight spaces. The zero-turn capability allows for precise navigation and enhances productivity, significantly reducing mowing time.

In terms of durability, the Exmark 4500-466 is built to withstand the rigors of frequent use. The heavy-duty frame and high-quality materials ensure that the mower can endure tough conditions while maintaining its performance. Regular maintenance is made easy through accessible components, ensuring owners can keep their mower in top condition with minimal effort.

In conclusion, the Exmark 4500-466 represents the pinnacle of zero-turn mower technology. With its powerful engine, advanced cutting systems, user-centric design, and robust construction, it offers everything needed for effective lawn care. Whether you're a professional landscaper or a homeowner looking for a reliable mowing solution, the Exmark 4500-466 is a worthy investment that will exceed expectations.
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