Exmark LAZER Z HP manual Engine Troubleshooting Table, Engine Warning Systems, Problem

Page 50

g)Check that the spark plug wires are properly connected.

h)Check for loose or faulty wiring connections.

i)Check for corrosion at all wiring connections. Even minor corrosion may cause a faulty connection. Clean connector terminals thoroughly with electrical contact cleaner, apply dielectric grease and reconnect.

NOTE: When disconnecting electrical connectors DO NOT pull on the wires to separate the connectors.

NOTE: After carefully checking the above steps, attempt to start the engine. If it does not start, contact your authorized Exmark service dealer.

IMPORTANT: It is essential that all operator safety mechanisms be connected and in proper operating condition prior to mower use.

When a problem occurs, do not overlook the simple causes. For example: starting problems could be caused by an empty fuel tank.

The following table lists some of the common causes of trouble. Do not attempt to service or replace major items or any items that call for special timing of adjustments procedures (such as valves, governor, etc.). Have this work done by your Engine Service Dealer.

ENGINE TROUBLESHOOTING TABLE

PROBLEM

NO

IMPROPER

DIRT IN

DIRTY AIR

FAULTY

ENGINE

BLOCKED

INCORRECT

DIRTY

INSUFFICIENT

SPARK

FUEL

OIL

AIR

BATTERY

FUEL

FUEL

FUEL LINE

FILTER

OVERLOADED

 

 

 

 

 

PLUG

 

FILTER

LEVEL

SCREEN

CHARGE

Will not start

X

 

X

X

X

X

X

 

 

X

Hard starting

X

X

X

X

X

X

X

 

 

 

Stops suddenly

X

 

X

X

 

X

X

X

X

 

Lacks power

 

X

X

X

X

X

X

X

X

 

Operates erratically

 

X

X

X

X

X

X

 

X

 

Knocks or pings

 

X

 

 

 

X

 

 

X

 

Skips or misfires

 

X

X

X

X

 

 

 

X

 

Backfires

 

 

X

X

X

X

 

 

X

 

Overheats*

 

 

X

X

 

X

 

X

X

 

High fuel

 

 

 

X

X

X

 

 

X

 

consumption

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7.4ENGINE WARNING SYSTEMS

For Kohler EFI Units Only:

7.4.1Electronic Control Unit Malfunction Indicator

The electronic control unit (ECU) continuously monitors operation of the EFI system. If a problem or fault within the system is detected, the malfunction indicator light (MIL) is illuminated. The MIL is the red light located on the control console between the key switch and the throttle controls. Follow the troubleshooting steps outlined in the Kohler engine operator’s manual if the MIL is illuminated.

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Contents For Serial Nos 540,000 & Higher Potential Hazard Exmark Parts PLUS→ Program Operators Manual Table of Contents Safety Alert Symbol SafetyYour Safety is Involved TrainingCarbon monoxide can kill you Potential Hazard Operation Safe Zone for Mowing There is no rollover protection when the roll bar is down Maintenance and Storage Safety Signs For Kohler EFI UnitsPage Do not Operate Without Guard Page Specifications Cutting Deck Hydrostatic Ground Drive SystemTires Dimensions Torque RequirementsAssembly Instructions Uncrate Mower Install Rollover Protection System Roll BARLower Roll BAR Installation Machine is shipped with a filled lead acid battery Service BatteryUpper Roll BAR Installation Install Canister AIR Cleaner Install Drive WheelsInstall Seat Check Tire PressurePosition Discharge Chute Install Motion Control LeversService Engine Service Hydraulic OIL Control ARM ShaftMotion Control Positions Operation InstructionsControls Push the lever forward and down to disengage the brake PRE-START MachineOperating Instructions Transporting Maintenance & Adjustments Service Interval Monthly Periodic MaintenanceService Interval Daily Service Interval Daily or more often in dry conditions Blade Bolt Installation Check rollover protections systems roll bar pins Service Interval 40 hr Kohler EFI engines only Service Interval 50 hoursService Interval 100 hrs Service Interval Refer to chart Lubrication ChartService Interval 40 hrs Service Interval 160 hrs Service Interval Once YearlyCaster Wheel Assembly Service Interval 80 hrs Service Interval As RequiredKohler EFI Fuel Line Routing Service Interval After First 250 hrs Then yearly thereafter Service Interval 500 hrsAdjustments Cutting Height PositionANTI-SCALP Roller Adjustment Swivel Adjustment Spring Compression Adjustment Self-tensioning No adjustment necessaryMule Drive Belt Adjustment Brake Adjustment Belt Guide PositioningThrottle Tension No adjustment necessaryReverse Indicator Adjustment Motion Control Adjustment Motor OIL Disposal Caster AdjustmentWaste Disposal Mower Pulls Left or Right W/LEVERS Fully Forward Trouble ShootingBattery Disposal Mower Cuts UnevenlyEngine Warning Systems Engine Troubleshooting TableProblem Electrical Diagram Kohler 23 & 27 HP AIR-COOLED Units Electrical Diagram Kohler EFI Units Hydraulic Diagram Year Limited Warranty Exmark Turf Equipment Page See EXMARK’S Complete Line of Accessories
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LAZER Z HP specifications

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