Exmark 4500-501 Rev A manual Troubleshooting

Page 49

 

 

 

 

Troubleshooting

 

 

 

 

 

Problem

 

Possible Cause

 

Corrective Action

 

 

 

 

 

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.

Dirty air filter.

3.

Clean or replace the air cleaner element.

 

4.

Coolant level is low.

4.

Add coolant.

 

5.

Debris on or around radiator.

5.

Remove debris.

 

6.

Water pump or alternator belt is worn,

6.

Contact an Authorized Service Dealer.

 

 

loose, or broken.

 

 

 

 

 

 

 

Mower pulls left or right (with levers fully

1.

Tracking needs adjustment.

1.

Adjust the tracking.

forward).

2.

Tire pressure in drive tires not correct.

2.

Adjust tire pressure in the drive tires.

 

 

3.

Reverse indicator and motion control

3.

Adjust the reverse indicator and the

 

 

linkage need adjustment.

 

motion control linkage.

 

 

 

 

 

Machine does not drive.

1.

By pass valve is not closed tight.

1.

Tighten the by pass 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.

 

4.

Broken or missing idler spring.

4.

Replace the spring.

 

5.

Hydraulic fluid level is low or too hot.

5.

Add hydraulic fluid to reservoir or let it

 

 

 

 

cool down.

 

 

 

 

 

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 worn, loose or broken.

1.

Check the belt tension.

 

2.

Drive belt is off pulley.

2.

Check belt for damage; replace if

 

 

 

 

necessary. Install drive belt and check belt

 

 

 

 

guide for correct position.

 

3.

Deck belt is worn, loose or broken.

3.

Install new deck belt.

 

4.

Deck belt is off pulley.

4.

Install deck pulley and check the idler

 

 

 

 

pulley, idler arm and spring for correct

 

 

 

 

position and function.

 

5.

Broken or missing idler spring.

5.

Replace the spring.

 

 

 

 

 

Warning buzzer emits continuous beep. (See

1.

Temperature is increasing on coolant

1.

Turn unit off and allow engine and engine

also Engine overheats).

 

temperature gauge.

 

components to cool.

 

2.

Coolant level is low.

2.

Add coolant.

 

3.

Debris on or around radiator.

3.

Remove debris.

 

4.

Water pump or alternator belt is worn,

4.

Contact Authorized Service Dealer.

 

 

loose or broken.

 

 

 

 

 

 

 

49

Image 49
Contents Lazer Z XS California Introduction Contents Safety Alert Symbol SafetySafe Operating Practices TrainingOperation Slope Operation Maintenance and Storage Using the Rollover Protection System RopsSafety Safety and Instructional Decals 103-0223 103-0261 103-1798 103-2076 103-7218 107-2102 Safety 109-2264 109-2478 109-2951 109-3148 Safety 107-9866 Model Numbers SpecificationsSystems Tires & Wheels Hydrostatic Ground Drive SystemCutting Deck Torque Requirements DimensionsOperation Product OverviewControls PTO Engagement Switch Tracking Adjustment KnobCoolant Temperature Gauge Hour MeterPre-Start Raise the Rollover Protection System Rops Operating InstructionsOpen the Fuel Shut-Off Valve Starting the EngineDisengaging the PTO Engaging the PTOStopping the Engine Driving the MachineDriving Forward Adjusting the Cutting HeightAdjusting the Anti-Scalp Rollers Transporting a Unit TransportingLoading a Unit Operation Recommended Maintenance Schedules MaintenanceCheck Engine Oil Level Check Battery ChargeCheck Mower Blades Check Safety Interlock SystemService Air Cleaner Check Rollover Protections Systems Roll Bar PinsCheck Seat Belt Check for Loose HardwareCheck Hydraulic Oil Level Change Engine OilCheck Tire Pressures Check Condition Of BeltsLubricate Caster Wheel Hubs Lubricate Grease FittingsLubricate Brake Rod Bushings Lubricate Brake Handle PivotLubricate Motion Control Bronze Bushings Drain Fuel Filter/Water SeparatorChange Fuel Filter/Water Separator Wheel Hub Slotted Nut Torque SpecificationChange Inline Fuel Filter Change Hydraulic System FilterChange Engine Coolant Check Engine Coolant LevelThread Locking Adhesives Fuel Tank Mounting Hardware SpecificationsMobil HTS Grease Or Food-Grade Anti-seize Dielectric Grease Copper-Based Anti-seizeDeck Leveling Pump Drive Belt Tension Mule Drive Belt Tension AdjustmentBrake Link Adjustment Belt Guide AdjustmentDeck Belt Tension Alternator Belt TensionElectric Clutch Adjustment Brake AdjustmentReverse Indicator Adjustment Motion Control Linkage Adjustment Motion Control Damper Adjustment Caster Pivot Bearings Pre-Load AdjustmentClutch Shim Removing the Shim Feeler gauge Cleaning of the Radiator Clean Engine Cooling SystemClean Debris From Machine Remove Accumulated Debris from EngineBattery Disposal Clean Grass Build-Up Under DeckWaste Disposal Motor Oil DisposalProblem Possible Cause Corrective Action TroubleshootingTroubleshooting Troubleshooting Electrical Ignition SwitchElectrical Logic Schematic Hydraulic Diagram Exmark Commercial Turf Equipment Page Page Service Record Page Page See EXMARK’S Complete Line of Accessories and Options