Exmark 4500-759 Rev A manual Troubleshooting

Page 48

Troubleshooting

Problem

 

Possible Cause

 

Corrective Action

 

 

 

 

 

Engine loses power

1.

Engine load is excessive

1.

Reduce the ground speed.

 

2.

Air cleaner is dirty.

2.

Clean or replace the air cleaner element.

 

3.

Oil level in the crankcase is low.

3.

Add oil to the crankcase.

 

4.

Cooling fins and air passages for the

4.

Remove the obstructions from the cooling

 

 

engine are plugged.

 

fins and air passages.

 

5.

Vent hole in the fuel cap is plugged.

5.

Clean or replace the fuel cap.

 

6.

Dirt in fuel filter.

6.

Replace the fuel filter.

 

7.

Dirt, water, or stale fuel is in the fuel

7.

Contact an Authorized Service Dealer.

 

 

system.

 

 

 

 

 

 

 

Engine overheats

1.

Engine load is excessive

1.

Reduce the ground speed.

 

2.

Oil level in the crankcase is low.

2.

Add oil to the crankcase.

 

3.

Cooling fins and air passages for the

3.

Remove the obstructions from the cooling

 

 

engine are plugged.

 

fins and air passages.

 

 

 

 

 

Mower pulls left or right (with levers fully

1.

Tire pressure in drive tires not correct.

1.

Adjust tire pressure in the drive tires.

forward).

2.

Tracking needs adjustment.

2.

Adjust the tracking by turning the LH

 

 

 

 

 

adjustment rod in the direction that the

 

 

 

 

mower needs to be adjusted to. Rotate the

 

 

 

 

adjustment rod in 1/4 turn increments

 

 

 

 

until the mower tracks correctly.

 

 

 

 

 

Machine does not drive.

1.

Bypass valve is not closed tight.

1.

Tighten the bypass valve.

 

2.

Drive or pump belt is worn, loose or

2.

Change the belt.

 

 

broken.

 

 

 

3.

Drive or pump belt is off a pulley.

3.

Change the belt.

 

 

 

 

 

Uneven cutting height.

1.

Blade(s) not sharp.

1.

Sharpen the blade(s).

 

2.

Cutting blade(s) is/are bent.

2.

Install new cutting blade(s).

 

3.

Mower deck is not level.

3.

Level mower deck from side-to-side and

 

 

 

 

front-to-rear.

 

4.

Underside of mower is dirty.

4.

Clean the underside of the mower.

 

5.

Tire pressure in drive tires not correct.

5.

Adjust tire pressure in the drive tires.

 

6.

Blade spindle bent.

6.

Contact an Authorized Service Dealer.

 

7.

Tips of adjacent blades are at an uneven

7.

Replace blades, spindles and (or) check

 

 

cutting height. Blades tips should be even

 

for damage to mower deck.

 

 

within 3/16 inch which is approximately

 

 

 

 

one blade thickness.

 

 

 

 

 

 

 

Abnormal vibration

1.

Cutting blade(s) is/are bent or unbalanced.

1.

Install new cutting blade(s).

 

2.

Blade mounting bolt is loose.

2.

Tighten the blade mounting bolt.

 

3.

Engine mounting bolts are loose.

3.

Tighten the engine mounting bolts.

 

4.

Loose engine pulley, idler pulley, or blade

4.

Tighten the appropriate pulley.

 

 

pulley.

 

 

 

5.

Engine pulley is damaged.

5.

Contact an Authorized Service Dealer.

 

6.

Blade spindle is bent.

6.

Contact an Authorized Service Dealer.

 

7.

Belt is damaged.

7.

Install new belt.

 

 

 

 

 

Blades do not rotate.

1.

Drive belt is off pulley.

1.

Check belt for damage; replace if

 

 

 

 

necessary. Install drive belt and check

 

 

 

 

adjusting shafts and belt guides for correct

 

 

 

 

position.

 

2.

Deck belt is worn, loose or broken.

2.

Install new deck belt.

 

3.

Deck belt is off pulley.

3.

Install deck pulley and check the idler

 

 

 

 

pulley, idler arm and spring for correct

 

 

 

 

position and function.

 

4.

Broken or missing idler spring.

4.

Replace the spring.

 

5.

Damaged electric clutch.

5.

Contact an Authorized Service Dealer.

 

 

 

 

 

48

Image 48
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 Specifications Model NumbersSystems Dimensions Product Overview Torque RequirementsOperation ControlsIgnition Switch Hour Meter Fuel Shut-Off ValveFuel Gauge Pre-Start Operating InstructionsPTO Engagement Disengaging the PTOStopping 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 DownAdjusting the Cutting Height TransportingTransporting 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 HubsCheck Spark Plugs Change Fuel FilterChange 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.

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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.