GEAR GP-OUTPUT TRANSFER 8E3132 - Caterpillar

Inlet Manifold Air Temperature - This gauge indicates the inlet manifold air temperature to the cylinders. The sensor for inlet manifold air temperature is located after the aftercooler.
High inlet manifold air temperature increases the risk of detonation. Detonation can cause damage to the engine. Ensure that the aftercooling system is operating properly.
For operating temperatures and shutdown temperatures, see this Operation and Maintenance Manual, "Alarms and Shutoffs" topic (Operation Section).
Inlet Manifold Air Pressure (TA Engines) and Inlet Manifold Vacuum (NA Engines) - For TA engines, this gauge indicates the air pressure (turbocharger boost pressure) in the air plenum (air inlet manifold) after the aftercooler. For NA engines, this gauge is the pressure of the inlet manifold vacuum. For all engines, this pressure depends on the engine rating, the load, and the operating conditions.The display on the engine panel is the gauge pressure. The gauge pressure is the difference between the barometric pressure and the absolute pressure.The Digital Diagnostic Tool can be used to display the pressure that is sensed by the manifold air pressure sensor. If the engine is operating, the display is the absolute pressure. If the engine is not operating, the display is the barometric pressure.Note: For more information on Inlet Manifold Air Pressure and Inlet Manifold Vacuum, see one of the following two publications:
Engine Performance, LEBQ6117, "G3500 Industrial"
Engine Performance, LEBQ6169, "G3500 Generator Set"Pyrometer - The pyrometer indicates the exhaust stack temperature at the exhaust elbows. For engines with two exhaust stacks, the two exhaust stack temperatures may vary slightly. This may be due to variation of the sensitivity of the two thermocouples.
For Low Emission engines, the nominal exhaust stack temperature is less than 554 °C (1030 °F).
For Standard engines, the nominal exhaust stack temperature is less than 510 °C (950 °F).
The exhaust stack temperature of NA engines depends on the engine rpm and the oxygen that is in the exhaust. For NA engines, the nominal range is 538 to 649 °C (1000 to 1200 °F).The pyrometer also indicates the temperature of the exhaust gas of each individual cylinder. These temperatures are measured at the exhaust port of each cylinder head. The exhaust temperature will vary slightly between the cylinders. Table 1 lists nominal temperatures and maximum temperatures.
Table 1
Exhaust Port Temperatures
Engine Nominal Temperature Maximum Temperature
Low Emission 621 °C (1150 °F) 670 °C (1238 °F)
Standby (Low Emission ) 621 °C (1150 °F) 700 °C (1292 °F)
Standard 643 °C (1190 °F) 700 °C (1292 °F)
Standby (Standard ) 643 °C (1190 °F) 730 °C (1346 °F)
Tachometer - This gauge indicates the engine rpm.
An overspeed can result in serious damage to the engine. To help prevent engine damage, never allow the engine to exceed the rated rpm.
Note: The rated rpm is stamped on the engine Information Plate.
Service Hour Meter - The meter indicates the total number of clock hours of engine operation.Fuel Filter Differential Pressure - This gauge is provided by the customer. This gauge indicates the difference in fuel pressure between the