RECEPTACLE AS-CONNECTOR 1561460 - Caterpillar

3606 (8RB),
3608 (6MC),
3612 (9RC),
3616 (1PD) Engines Running On HFOSUPPLEMENT: 08/01/97Engine News; August 1996; Page 13; "Procedures For Changing From Running On Heavy Fuel Oil (HFO) To Running On Distillate Fuel"Disregard this article. See the article with the same title in Engine News SEBD9251, Article 20, Page 22.
--------------- END SUPPLEMENT ---------------SUPPLEMENT: 10/01/96Engine News, August 1996, Page 13, "Procedures For Changing From Running On Heavy Fuel Oil (HFO) To Running On Distillate Fuel"In the procedure to "Changeover From HFO To Distillate Fuel With The Engine Running At 50 Percent Of Rated Load", disregard Step 5. The correct Step 5 follows:
5. When the fuel viscosity is reduced to ten cSt, the valve which allows fuel flow through the fuel cooler should be opened slowly, until there is maximum flow of fuel to the fuel cooler.--------------- END SUPPLEMENT ---------------Caterpillar 3600 Diesel Engines are designed to start, stop, and operate on heavy fuels. These engines can also operate on distillate fuel with the same component configurations. There may also be a mixture of each fuel during operation. Caution is advised when switching between HFO and distillate fuel too quickly. Take precautions to avoid thermal shock and a lack of lubricity because of wide differences in fuel temperature control.
There are many reasons to temporarily change from HFO to distillate fuel: * When the engine is being stopped to conduct maintenance on fuel system components, such as fuel filters or fuel injectors.* When the engine is shutdown for an indefinite period of time and fuel circulation through the engine is stopped.* When the heavy fuel supply is restricted, reduced, or eliminated.* After any overhaul or fuel systems maintenance/replacement, test the engine with distillate fuel before returning the engine to HFO operation. Distillate fuel is much easier to clean up if a leak develops on initial start up.
The changeover between HFO and distillate fuel should be done with the engine running at fifty percent of Rated Load. This is done to help prevent thermal shock that may result in stuck fuel injectors.
Follow the recommended procedures before starting an engine. Incomplete procedural techniques can lead to system malfunctions that will not allow engine operation.
Changeover From HFO To Distillate Fuel With The Engine Running At 50 Percent Of Rated Load
1. Set the changeover valve time control for 45 to 50 minutes.2. Make sure that all distillate fuel line to booster module valves are OPEN.3. Change the fuel selector switch on the booster module control box from heavy to distillate.4. Monitor fuel temperature and viscosity during the changeover period. Adjust the bypass valve in the fuel lines to balance the fuel supply pressure to each engine at 550 to 620 kPa (80 to 90 psi).5. When the fuel viscosity is reduced to ten cSt, the fuel cooler should be opened slowly, allowing a full parallel connection with the fuel cooler.6. When the fuel viscosity reaches eight cSt, the steam feed to the Vokes filter should be slowly closed.7. When the fuel flow is totally through the fuel cooler, the