attachment and is described in more detail in the operating instructions provided with the attachment.
Instrumentation
11.Electronic hour meter (Fig.
•Audible alarm signal (not shown) will sound when the ignition switch is turned to the ON or
START position. It will silence when the engine starts. This alarm will also sound to indicate a problem with low engine oil pressure or high water temperature. If alarm sounds when the engine is running, check the instrument warning lights to determine problem area.
12.Warning lights (Fig.
•Oil pressure warning light – this light comes on when the ignition switch is placed in ON
position, and stays lit until engine is running and a safe oil pressure is developed. If light comes on during operation, shut off the engine immediately and locate the problem.
•Temperature warning light – this light will come on when the engine coolant temperature
reaches an unsafe level during operation. If light comes on, shut down the machine as soon as possible. Never risk continued operation when light remains on; high temperatures can severely damage the engine.
•Alternator warning light – this light will come on when the ignition switch is placed in the ON
position, and stays lit until the engine is running and alternator is supplying the electrical system. If light remains on while engine is running, it indicates that the battery is being discharged.
•
the
Safety start interlock system
Check tractor safety start interlock system daily, prior to operation. This system is an important tractor feature. It should be repaired immediately if it malfunctions. The machine incorporates a separate seat switch which will stop the tractor engine when the operator is unseated for any reason while the tractor, mower or other attachment is
operating. This is a safety feature designed to prevent runaway or accidental entanglement. To inspect system:
1.The operator must be on the seat when testing the seat switch.
2.Set parking brake and set the steering control lever in the neutral position and disengage pump clutch.
(Fig.
3.Start the engine and allow it to warm up to operating temperature.
4.With the front neutral lock in the up position and/or the clutch switch on, slowly raise off of the seat. The engine should stop within one second.
5.With the front neutral lock in the down position and the clutch switch off, slowly raise off of the seat. The engine should continue to run.
6.If the engine fails to stop when the clutch switch is on or front neutral lock lever is up and the operator is off the seat, check the function of the seat switch. If the seat switch is not operating properly (is not opening and closing) and if the cause can not be determined, replace the seat switch.
If the problem can not be located, contact the Hustler Service Department.
This safety interlock system should always function per steps 4 and 5. If it does not function properly, it should be corrected immediately. Do not operate machine without properly functioning seat safety switch.
IMPORTANT: Never switch the PTO on unless it is securely connected to a suitable attachment.
Engine starting
Your Hustler tractor incorporates a safety interlock system. Designed to protect the operator and others from accidental injury, this system prevents unintentional engine starting. The engine starting motor will not engage until:
A.Steering control lever front and rear neutral locks set.
B.PTO clutch switch is in the OFF position.
WARNING: The safety interlock system must not be disconnected or bypassed.
NOTE: The operator’s seat is equipped with a separate safety switch. If for any reason the operator should become unseated when the neutral lock is disengaged, or the PTO switch is in the ON position, this switch will open and engine will stop.
Before engaging the starting motor, disengage the hydraulic clutch lever to lessen drag on the starter motor, particularly when oil is cold. Always rotate the key switch to the ON position to make sure that each warning light is operating.
The following is general information taken from the respective engine owner’s manual. If difficulty is encountered, refer to the engine manual for more specific details.
Models 4200/4400/4420/4600:
1.Before starting tractor each day, perform daily pre- operation checking.
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