THUMB GP 4516380 - Caterpillar

Rating Conditions
The engine ratings are based in compliance with the following standard ambient air conditions of "SAE J1995 January 1990" and "ISO3046":
Dry barometric pressure of 99 kPa (14.4 psi)
Temperature of 25° C (77° F)Engine performance and fuel consumption are based on the following fuel specifications:
The low heat value (LHV) of the fuel is 42780 Kj/kg at 29 °C.
The density of the fuel is 838.9 g/L.The following tolerances are included:
5 percent for specific fuel consumption
3 percent for brake kilowatts at the flywheelThe power at the flywheel is demonstrated at a Caterpillar Engine test cell.Before engine power is derated, the maximum temperature of the inlet air to the turbocharger is 45° C (113° F).The engine ratings represent net power. The power that is required for the following parameters has been subtracted from the net power:
Air filter restriction
Exhaust restriction
Fuel pump
Pumps that circulate lube oil
Water pumps