Exmark LZ27KC604 manual Troubleshooting

Page 42

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.

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.

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.

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.

 

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.

 

 

 

 

 

Blades do not rotate.

1.

Drive belt is worn, loose or broken.

1.

Check the belt tension.

 

2.

Drive belt is off pulley.

2.

Install drive belt and check adjusting

 

 

 

 

shafts and belt guides 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.

 

 

 

 

 

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Contents Lazer Z California Exmark Parts Plus Program Introduction Contents Safe Operating Practices SafetySafety Alert Symbol TrainingSafety Operation Slope OperationUsing the Rollover Protection System Rops Maintenance and Storage Safety and Instructional Decals 633922 643222 643339 98-5954 103-1798 103-3270 103-4474 103-4930 103-5881 103-6319 107-2102 107-2112 109-1214 109-1215 109-3148 109-7949 103-9255 Specifications Model NumbersSystems Dimensions Product Overview Torque RequirementsOperation ControlsPre-Start Operating InstructionsStopping the Engine Engaging the PTODisengaging the PTO Driving the MachineAdjusting the Cutting Height Driving ForwardAdjusting the Anti-Scalp Rollers Transporting Transporting a UnitLoading a Unit Operation Maintenance Recommended Maintenance SchedulesService Interval Monthly Check Battery ChargeService Interval Before each use or daily Check Engine Oil LevelCheck Safety Interlock System Check Mower BladesCheck Seat Belt Check Rollover Protections Systems Roll Bar PinsService Air Cleaner Check for Loose HardwareCheck Tire Pressures Change Engine OilCheck Hydraulic Oil Level Check Condition Of BeltsService Interval Yearly Lubricate Caster Wheel HubsLubricate Brake Rod Bushings Lubricate Seat Switch ActuatorLubricate Brake Handle Pivot Lubricate Motion Control Bronze BushingsChange Fuel Filter Wheel Hub Slotted Nut Torque SpecificationFuel Tank Mounting Hardware Specifications Change Hydraulic System FilterDielectric Grease Mobil HTS Grease Or Food-Grade Anti-seizeCopper-Based Anti-seize Deck LevelingMule Drive Belt Tension Adjustment Pump Drive Belt TensionBrake Adjustment Brake Link AdjustmentBelt Guide Adjustment Deck Belt TensionElectric Clutch Adjustment Reverse Indicator AdjustmentMotion Control Linkage Adjustment Motion Control Damper Adjustment Caster Pivot Bearings Pre-Load Adjustment Adjust Seat SwitchClean Grass Build-Up Under Deck Clean Engine Cooling SystemRemove Engine Shrouds and Clean Cooling Fins Waste DisposalMaintenance Troubleshooting Problem Possible Cause Corrective ActionTroubleshooting Schematics Electrical DiagramHydraulic Diagram Year Limited Warranty Exmark Turf Equipment Service Record Page See Exmark’s Complete Line of Accessories