e)Make sure the parking brake is set and motion control levers are moved out (neutral lock position).
f)Check that the PTO is disengaged.
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 consumption |
|
|
| X | X | X |
|
| X |
| |
|
|
|
|
|
|
|
|
|
|
|
*Check for dirty radiator core.
7.4ENGINE WARNING SYSTEMS
7.4.1Warning Buzzer: Located behind the seat on the right hand side. When the engine is running and the buzzer emits a beep, the buzzer is warning signal the user that the engine is overheating. Perform the following step.
1.Disengage the mower blade, and idle down the engine.
2.Look at the temperature gauge to determine if the temperature continues to increase. If it does, turn the unit off and allow the engine and engine components to cool.
3.Check the coolant level. If necessary, fill with coolant as described in Section 5.1.2.
4.Remove any debris on or around the radiator that may restrict airflow.
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