Exmark VT651KA484 Adjusting the Rear of the Deck, Pump Drive Belt Tension, Check the Park Brake

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Maintenance

Figure 26

1. Rear lift points

2. Engine deck brackets

7.To raise the front of the mowing deck, tighten the front locking nuts by the same amount on both front adjusting rods. Tighten both rear locking nuts. Check the side to side level of the mower again; refer to Deck Leveling.

Note: Rake adjustments may affect the motion control neutral position. See the Motion Control Neutral Adjustment and Motion Control Tracking Adjustment sections in Maintenance.

Adjusting the Rear of the Deck

1.Park the machine on a level surface and disengage the blade control switch.

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

3.Check the air pressure in the drive tires. If needed, adjust to the recommended inflation; refer to Checking the Tire Pressure in Drive System Maintenance section.

4.Set the height of cut to the 3 inch (7.6 cm) position.

5.Carefully rotate the blades front to rear. Measure from the tip of the front blade to the level surface. The blades should measure 3 inches (7.6 cm).

6.If it does not measure correctly, locate the height-of-cut rod on the right side of the machine (see Figure 27).

Figure 27

1.Adjustment screw

7.Turn the adjustment screw until the blade tips match 3 inches (7.6 cm).

Pump Drive Belt Tension

Self-tensioning - No adjustment necessary.

Mower Deck Drive Belt Tension

Self-tensioning - No adjustment necessary.

Check the Park Brake

1.Park the machine on a level surface.

2.Shut off engine and wait for all moving parts to stop.

3.When the park brake is released, the brake bars should lift off the tires and the hand lever should travel forward to the end of the slot in the control panel. When engaging the brake, the hand lever should travel 3/4 inch (19 mm) at the control panel slot when the brake bars first contact the tire. Measure the gap from the front of the lever to the end of the slot in the control panel when the brake bar contacts the tire.

Park Brake Adjustment

If the parking brake does not hold securely, an adjustment is required.

1.Park the machine on a level surface.

2.Shut off engine and wait for all moving parts to stop.

3.Check the air pressure in the drive tires. If needed, adjust to the recommended inflation; refer to

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Contents Vantage California Introduction Contents Safe Operating Practices SafetySafety Alert Symbol TrainingSafety Operation Slope OperationMaintenance and Storage Safety Safety and Instructional Decals 116-0404 116-2040 116-3076 116-7217 116-5040 116-4648 Systems SpecificationsModel Numbers Dimensions Torque Requirements Curb WeightProduct Overview Tread Width Outside to OutsideOperation ControlsHour Meter Ignition SwitchPark Brake Lever Fuel Shut-Off ValvePre-Start Operating InstructionsStopping the Engine PTO EngagementDisengaging the PTO 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 a Unit Adjusting the Cutting HeightTransporting Loading a Unit Maintenance Recommended Maintenance SchedulesCheck Battery Charge Check Engine Oil LevelRecommended Jump Starting Procedure Release the Cushion for Rear Access Check Mower BladesCheck Safety Interlock System Blade control switch PTO is pulled onChange Engine Oil Service Air CleanerCheck for Loose Hardware Check Hydraulic Oil LevelLubricate Grease Fittings Check Tire PressuresCheck Condition Of Belts Lubricate Caster Wheel HubsChange Hydraulic System Filter and Fluid Check Spark PlugsChange Fuel Filter Hydraulic System Air Purge LevelWheel Hub Nut Torque Specification Check Spark Arrester if equippedCopper-Based Anti-seize Thread Locking AdhesivesMobil HTS Grease Or Food-Grade Anti-seize Dielectric GreaseAdjusting the Cutting Deck Rake Pump Drive Belt Tension Adjusting the Rear of the DeckPark Brake Adjustment 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 Debris From Machine Clean Engine and Exhaust System AreaRemove Engine Shrouds and Clean Cooling Fins Clean Grass Build-Up Under DeckBattery Disposal 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 Exmark Accessories and Options

VT691KA524CA, VT691KA484CA, VT651KA484, VT730EKC524, VT691KA524 specifications

The Exmark VT691KA524, VT730EKC524, VT651KA484, VT691KA484CA, and VT691KA524CA mowers represent some of the most advanced lawn care technology in the market. Each model is designed to deliver professional-grade performance, ensuring lawns are impeccably manicured.

The VT691KA524 features a robust 691cc engine, delivering powerful performance. Its 52-inch cutting deck allows for efficient mowing, making it ideal for medium to large-sized lawns. The mower incorporates Exmark's innovative patented UltraCut deck design, which offers exceptional cut quality and reduced clumping. Additionally, it boasts a high-capacity fuel tank, which is designed for extended operation without frequent refueling.

Another standout model, the VT730EKC524, comes with a 730cc engine, providing even more horsepower. This model supports advanced cooling and air filtration systems that enhance engine life and performance. The VT730EKC524’s fully adjustable cutting height options allow users to customize their mowing experience, ensuring a clean and even cut on various grass types.

The VT651KA484, equipped with a 651cc engine, emphasizes manoeuvrability and ease of use. It features a compact design that allows it to navigate tight spaces. The 48-inch cutting deck still provides a significant mowing width, and the model is also equipped with Exmark’s patented parking brake system for added safety.

The VT691KA484CA and VT691KA524CA are both equipped with the powerful 691cc engine like the VT691KA524. However, they come with unique functionalities that enhance their usability. The -CA variants offer additional features, such as an improved comfort seat and steering controls, making them ideal for extended mowing sessions without fatigue.

All these models feature Exmark’s signature Precision-Theory mower technology. This ensures that the mower maintains a consistent speed and cutting height while preventing scalping on uneven terrain. Furthermore, the mowers are constructed with durable, high-quality materials designed for longevity, ensuring that they can withstand the rigors of regular use.

With their user-friendly operation, advanced technologies, and rugged construction, the Exmark VT series mowers are an excellent investment for anyone looking to maintain an attractive and healthy lawn. Whether you choose the VT691KA524 for its efficiency or the VT730EKC524 for its superior horsepower, each model guarantees professional-quality results.
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