HEAD 8J8874 - Caterpillar

Engine Attachments To Improve Performance
The 3600 Attachment Selection Guide has been modified to include the following list of configuration requirements for 3600 HFO Engines.The following items are required for all new orders.Torsional Detection System (723 Plus Digital Governor Control)
All 3600 HFO Engines sold into electrical power generation (EPG) applications will require the use of torsional detection to detect misfire. This requirement is accomplished by installing an additional magnetic pickup on the output side of the torsional coupling. This signal is fed back into the 723 Plus Digital Governor Control or the governor's equivalent. This signal is compared with the signal from the magnetic pickup on the input side of the torsional coupling. The circuitry in the governor compares the two signals and the governor determines if there is a misfire in the engine. The engine then shuts down prior to serious damage. The additional magnetic pickup and wiring have been released as Caterpillar part numbers and may be ordered when either "Low Viscosity Heavy Fuel" or "High Viscosity Heavy Fuel" feature code is selected in the configurator.Torsional detection is now a requirement. Therefore, all heavy fuel oil 3600 Engines in EPG applications will require the use of the 723 Plus Digital Governor Control and these engines will require the use of the EGB hydra-electric actuator or the actuator's equivalent. The 723 Plus Digital Governor Control is available when the "Gov.Gp. - 723 Plus" is selected as a feature code in the configurator.Heinzmann Governor
The Heinzmann Governor is not able to provide the torsional detection feature as required. Therefore, this governor is no longer compatible with engines that operate on heavy fuel oil.Injector Tip Cooling Module
Recommended cooling fluid is 30 wt engine oil. Other fluids may be considered if a special request is made. A single tip cooling module is preferred for each engine. If installations with multiple engines have the tip cooling modules, there is a risk of contaminating the cooling fluid of all the engines. This contamination will occur if an injector develops a leak into the tip cooling circuit. A Custom Quote Request must be submitted for this attachment.Separate Circuit Cooling System
All HFO Engines require a separate circuit cooling system with regulators that are set at a water temperature of 32 °C (90 °F) for the AC/OC circuit. Combined circuit cooling only provides water at a temperature of 50 °C (122 °F) to the aftercooler/oil cooler (AC/OC) circuit. The separate system may provide water at a temperature of 32 °C (90 °F) to the aftercooler (AC). This lower water temperature lowers the exhaust gas temperatures. Low exhaust gas temperatures prevent the vanadium in the fuel from damaging the exhaust valve. This separate circuit system is available by selecting the "Separate Circuit" feature code in the configurator.High Volume, Normal Duty Air Cleaners
All HFO Engine installations are required to use the high volume, normal duty air cleaner because of the additional air flow requirements. These air cleaners may be selected by choosing one of the following feature codes in