PLATE AS 4401160 - Caterpillar

Refer to Truck Owners Manual for information on the layout of your gauge package. Gauges provide a "look" inside the engine. Be sure they are in good working order. Determine what is the "normal" operating range by observing your gauges over a period of time.Noticeable changes in gauge readings are an indicator of potential gauge or engine problems. This also applies to gauge readings that have changed significantly but are still within specifications. The cause of any sudden or significant change in the readings should be determined and corrected. Contact your Caterpillar dealer for assistance as needed.
If no oil pressure is indicated, STOP the engine. Engine damage can result.
Oil Pressure - Typical oil pressure range running at rated engine speed with SAE 30 or SAE 40 oil, at operating temperature is 35 to 70 psi (240 to 480 kPa).A lower pressure is normal at low idle. As the engine speed is increased, oil pressure will increase and stabilize. Water (Coolant) Temperature - Typical temperature range is 189° to 208°F (87° to 98°C). Maximum allowable temperature is 216°F (102°C) with the cooling system pressurized cap. Higher temperatures may occur under certain conditions. Ammeter - Indicates the amount of charge or discharge in the battery charging circuit. Typical operation of the indicator should be slightly to the positive (right) side of "0" (zero). Tachometer - Indicates engine rpm (speed). The engine can be operated at high idle without damage, but should never be allowed to overspeed. Overspeeding while downshifting, going downhill, etc., can result in serious damage to your engine.
Do not exceed 2300 rpm in any situation.
Engine Oil Temperature - Indicates engine oil temperature. Maximum oil temperature at rated speed with a full load is 220°F (104°C).Higher than normal oil temperature indicates a heat problem has occurred in the lubrication and/or cooling system. This can damage the cylinder heads, liners, pistons, and crankshaft bearings. Service Hour Meter - Indicates the total number of clock hours the engine has operated.