Gauges provide indications of engine performance. Ensure that the gauges are in good working order. Determine the normal operating range by observing the gauges over a period of time.
Noticeable changes in gauge readings indicate potential gauge or engine problems. Problems may also be indicated by gauge readings that change even if the readings are within specifications. Determine and correct the cause of any significant change in the readings. Consult your Cat dealer for assistance.
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If no oil pressure is indicated, STOP the engine. If maximum coolant temperature is exceeded, STOP the engine. Engine damage can result. |
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Engine Oil Pressure - The oil pressure should be greatest after a cold engine is started. The typical engine oil pressure with SAE10W30 is |
A lower oil pressure is normal at low idle. If the load is stable and the gauge reading changes, perform the following procedure:
- Remove the load.
- Reduce engine speed to low idle.
- Check and maintain the oil level.
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Jacket Water Coolant Temperature - Typical temperature range is |
If the engine is operating above the normal range and steam becomes apparent, perform the following procedure:
- Reduce the load and the engine rpm.
- Inspect the cooling system for leaks.
- Determine if the engine must be shut down immediately or if the engine can be cooled by reducing the load.
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Tachometer - This gauge indicates engine speed (rpm). When the throttle controller is moved to the full throttle position without load, the engine is running at high idle. The engine is running at the full load rpm when the throttle controller is at the full throttle position with maximum rated load. |
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To help prevent engine damage, never exceed the high idle rpm. Overspeeding can result in serious damage to the engine. The engine can be operated at high idle without damage, but should never be allowed to exceed high idle rpm. |
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Ammeter - This gauge indicates the amount of charge or discharge in the battery charging circuit. Operation of the indicator should be to the right side of "0" (zero). |
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Fuel Level - This gauge indicates the fuel level in the fuel tank. The fuel level gauge operates when the "START/STOP" switch is in the "ON" position. |
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Service Hour Meter - The gauge indicates operating time of the engine. |
The following indicator lamps can be installed, for more information refer to the Original Equipment Manufacturer (OEM)
- Shutdown lamp
- Warning lamp
- Low-pressure oil lamp