Exmark 4500-759 Rev A manual Electric Clutch Adjustment, Removing the Shim

Page 40

Maintenance

Figure 31

1. Switch

3. Brake lever

2.1/8 inch (3mm) gap needed between switch and brake lever

9.If needed, loosen the screws holding the switch and adjust the switch.

Electric Clutch Adjustment

No adjustment necessary. However when the clutch brake has worn to the point where the clutch no longer engages consistently, the shim can be removed to extend the clutch life.

4.Verify that 12V is present at the clutch connector when the PTO switch is engaged.

5.Measure the gap between the rotor and armature. If the gap is greater than .04 inch (1 mm), proceed with the following steps:

A.Loosen both brake mounting bolts one-half to one full turn (see Figure 33).

Note: Do Not remove the brake pole from the field shell/armature. The brake pole has worn to match the armature and needs to continue to match after the shim is removed to ensure proper brake torque.

Figure 33

1. Brake mounting bolt

2. Shim

Figure 32

1.

Armature

5.

Brake spacer

2.

Field shell

6.

Re-gap shim

3.

Rotor

7.

Brake pole

4.Brake mounting bolt

Removing the Shim:

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake. Allow the machine to cool completely before starting these instructions.

2.Using a pneumatic line, blow out any debris from under the brake pole and around the brake spacers.

3.Check the condition of the wire harness leads, connectors, and terminals. Clean or repair as necessary.

B.Using needle nose pliers, or by hand, take hold of the tab and remove the shim (Do Not discard the shim until proper clutch function has been confirmed).

C.Using a pneumatic line, blow out any debris from under the brake pole and around the brake spacers.

D.Re-torque each bolt (M6 x 1) to 10 ft-lb (13 N-m) +/-0.5 ft-lb (0.7 N-m).

E.Using a 0.010 inch thick feeler gauge, verify that a gap is present between the rotor and armature face on both sides of the brake pole as shown. (Due to the way the rotor and armature faces wear (peaks and valleys) it is sometimes difficult to measure the true gap.)

40

Page 39 Page 41
Image 40
Page 39 Page 41
Contents Vantage California Introduction Contents Safety Safety Alert SymbolSafe Operating Practices TrainingSafety Operation Slope OperationMaintenance and Storage Safety Safety and Instructional Decals 116-0404 116-2040 116-3267 116-3283 116-3290 116-1887 116-4181 116-4647 116-5040 EFI Only Model Numbers SpecificationsSystems Dimensions Product Overview Torque RequirementsOperation ControlsFuel Shut-Off Valve Ignition Switch Hour MeterFuel Gauge Pre-Start Operating InstructionsDisengaging the PTO PTO EngagementStopping the Engine Driving the Machine Driving ForwardAdjusting the Front Reference/Speed Control Bar Operating the PlatformOperating the Machine with the Platform Up Operating the Machine with the Platform DownTransporting Adjusting the Cutting HeightTransporting a Unit Loading a Unit Maintenance Recommended Maintenance SchedulesCheck Battery Charge Check Engine Oil LevelRecommended Jump Starting Procedure Do Not jump start a weak battery if these conditions existRelease the Cushion for Rear Access Check Mower BladesCheck Safety Interlock System Safety interlock system is designed to stopService Air Cleaner Check for Loose HardwareChange Engine Oil Check Hydraulic Oil LevelCheck Tire Pressures Check Condition Of BeltsLubricate Grease Fittings Lubricate Caster Wheel HubsChange Fuel Filter Check Spark PlugsChange Hydraulic System Filter and Fluid Hydraulic System Air Purge LevelWheel Hub Nut Torque Specification Check Spark Arrester if equippedThread Locking Adhesives Mobil HTS Grease Or Food-Grade Anti-seizeCopper-Based Anti-seize Dielectric GreaseAdjusting the Cutting Deck Rake Adjusting the Rear of the Deck Park Brake AdjustmentPump Drive Belt Tension Mower Deck Drive Belt TensionChecking the Tire Pressure in Drive System Electric Clutch Adjustment Removing the ShimMotion Control Neutral Adjustment Motion Control Tracking Adjustment Check the Neutral Switch AlignmentAdjust RH Motion Control Handle Position Caster Pivot Bearings Pre-Load Adjustment Clean Engine and Exhaust System Area Clean Grass Build-Up Under DeckRemove Engine Shrouds and Clean Cooling Fins Clean Debris From MachineMaintenance Troubleshooting Problem Possible Cause Corrective ActionTroubleshooting Troubleshooting Schematics Electrical Diagram-All Units Except Kohler EFIElectrical Diagram-Kohler EFI Electrical Schematic-All Units Except Kohler EFI Electrical Schematic-Kohler EFI Hydraulic Diagram General Warranty Conditions and Products Covered Page Service Record Date Description of Work Done Service Done ByPage This page may be copied for personal use See EXMARK’S Complete Line of Accessories and Options

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.
Top Page Image Contents