HOUSING 4S8683 - Caterpillar

EngineG3516 (S/N: AL71-UP)Introduction
Do not perform any procedure in this Special Instruction until you read this information and you understand this information.This Special Instruction provides the following information for G3500 TA Engines:
Required information
Requirements for the electrical system
Grounding practices
Proper welding procedure
Service tools
Initial start-up procedures
Unburned gas - purgeReference: The following information is required to perform the installation and initial start-up:
Complete analysis of the fuel provided by Gas Engine Rating Pro (GERP)
The performance data sheet for this engine located in the Technical Marketing Information (TMI) database or located in GERP.
Operation and Maintenance Manual, SEBU9297, "G3500 Engines"
Systems Operation/Testing and Adjusting, M0081470
Troubleshooting Manual, M0080340
Special Instruction, M0073032, "Customer Interface for G3516 TA Engines"
Systems Operation/Troubleshooting /Testing and Adjusting, UENR3193, "Gas Compression Operator Control Panel"Required Information
Ignition Timing
A complete fuel analysis must be conducted prior to putting the engine into service. Obtain a fuel analysis to determine the fuel energy content and calculate the methane number. The methane number indicates the ability of the fuel to be ignited and is used to determine desired ignition timing. Both the methane number and the ignition timing will be provided by GERP when a fuel analysis is done. The fuel usage guide on the engine performance sheet can be used to determine the desired ignition timing for the fuel being used.Obtain several samples of fuel if the quality is expected to change. If the methane number will vary during engine operation, use the lowest expected value to determine ignition timing.Maximum Load
The maximum load that the engine can handle given its operating site can be found in the fuel analysis results generated by the Gas Engine Rating Pro (GERP) tool.Inlet Manifold Pressure at Full Load
Use the inlet manifold pressure to estimate the load on the engine. The inlet manifold pressure may be used if the engine timing and the exhaust emissions are set properly. Refer to TMI to determine the inlet manifold pressures for specific settings of timing and emissions. If the engine power is derated, interpolate the desired inlet manifold pressure between the 100 percent and the 75 percent load ratings.Level of Exhaust Emissions
The 391-8170 EMISSIONS ANALYZER TOOL GP or 393-0673 EMISSIONS ANALYZER TOOL GP is required to set up this engine. The engine performance Data Sheet gives the levels of emissions for engine loads of 50 percent, of 75 percent, and of 100 percent. Set up the engine in accordance with the Data Sheet at the desired full load with the data that was taken at 100 percent load.Note: Use an emissions analyzer to setup the engine, when possible.Note: Failure to adjust the air/guel ratio to the correct NOx levels can result in excessive misfire and/or detonation during engine operation.Gas Pressure Regulator
The gas pressure regulator requires adjustment when the engine is installed. Use only Caterpillar approved regulators to avoid problems with performance.Note: The supply line to the gas pressure regulator must be of adequate diameter to provide constant pressure to the regulator from idle to full load. Do not use supply lines that are smaller than the inlet to the