BODY 2M5558 - Caterpillar

EngineG3306B (S/N: R6S1-UP)Introduction
Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.This system is for engines that are equipped with Cat® Air/Fuel Ratio (AFR) control system The AFR setup instructions that follow are intended to maintain emissions for fuel with a Lower Heating Value (LHV) of 800 BTU/ft3 to 2395 BTU/ft3. The engine control strategy is not designed to run on any fuels outside of this range. Maintenance of emissions is not guaranteed on engines that are run on fuels outside of this range. Caterpillar also recommends adjusting the AFR when the gas pressure regulator is serviced or inspected. This system is for engines that are equipped with Cat AFR control system.The AFR setup instructions that follow are intended to maintain emissions for fuel with an LHV of 800 BTU/ft3 to 2395 BTU/ft3. The engine control strategy is not designed to run on any fuels outside of this range.Maintenance of emissions is not guaranteed on engines that are run on fuels outside of this range. Caterpillar also recommends adjusting the AFR when the gas pressure regulator is serviced or inspected.Reference Section
Reference: Testing and Adjusting, KENR6870, "G3304B and G3306B Engines" for additional information.Required Parts
Table 1
Qty Part Number Description
1 274-3782 Seal Cap
1 394-9020 Oxygen Sensor
1 394-9021 Oxygen Sensor
1 484-0935 Sensor Harness As
1 505-8550 Engine Software
1 508-2175 Control Harness As
1 510-4350 Sensor Harness As
1 510-8753 Monitor Software Gp
Table 2
Required Parts for Installation of 394-9020 Oxygen Sensor
Qty Part Number Description
2 457-7737 Bracket
2 4P-8134 Clip
2 5M-2894 Hard Washer
2 5S-7379 Bolt
2 6V-8801 Nut
2 7K-1181 Cable Strap Installation Procedure
Software
Connect to the engine with 2016A or later version of Caterpillar® Electronic Technician (Cat ET).
Download and save the Electronic Control Module (ECM) replacement file.
Generate and save the Product Status Report.
Connect with Win Flash.
Flash the engine ECM and Messenger with appropriate software.Natural Gas/Field Gas Fuel Supply Pressure
Set the regulator inlet pressure between 83 kPag (12 psig) and 172 kPag (25 psig).
Set the regulator outlet pressure. Refer to Testing and Adjusting, KENR6870, "Gas Pressure - Check and Adjust".Ignition Timing
The timing parameters allow the customer to program the ignition timing of the engine to meet the needs for specific applications and installationsNote: Timing will be provided within the Gas Engine Rating Pro (GERP) programFirst Desired Timing
The "First Desired Timing" is determined with the methane number of the primary fuel that is being used. Obtain the timing information for the specific fuel and site conditions from the local Cat dealer. The timing can also be obtained using the Caterpillar Gas Engine Rating Pro (GERP) software program.Note: If the fuel composition at a given site changes greater than five methane points, the timing will need to be reset.Contact the local Cat dealer or use GERP if such a change occurs. A free copy of GERP can be obtained by going to the following link and searching GERP in the search field.https://catoilandgas.cat.com
Note: More information