09600-01780 PUMP ASSY, INJECTI Denso Cross

Fuel Injection Nozzles
Test/Exchange
Fuel nozzles are subject to tip wear as a result of fuel contamination. This damage can cause an increase in fuel consumption, the engine to emit black smoke, misfire or run rough. Inspect, test and replace if necessary. Fuel nozzles can be tested by an authorized Caterpillar engine dealer.Whenever the engine performs in such a manner that a fuel injection nozzle is suspected of causing irregular running, smoking or knocking, isolate each fuel injection nozzle, one at a time, to determine the malfunctioning nozzle. For complete fuel injection nozzle testing and cleaning, consult your Caterpillar dealer. Refer to to Special Instruction SEHS7292 for the use of the 8S2245 Nozzle Cleaning Kit to clean the nozzles. 1. Start the engine by following the procedure in the Engine Starting topic in this manual.
Do NOT loosen nuts at the top of fuel nozzles or let top of fuel nozzles turn when the fuel lines are loosened. The nozzles will be damaged if the top of the nozzle turns in the body when the fuel lines are loosened.The engine will be damaged if a defective fuel injection nozzle is used because of the shape of fuel (spray pattern) that comes out of the nozzles will not be correct.
2. Loosen the fuel injection line nut at the fuel pump, one at a time, with the engine running. Use a cloth or similar material to prevent fuel from spraying on hot exhaust component. Be sure to tighten each fuel line nut after the test, before the next fuel line nut is loosened. 3. When a cylinder is found where the loosened fuel line nut does not make a difference in engine performance or smoking, have that cylinder injection nozzle tested. Purge the fuel lines of air. 4. Check for any fuel leaks. Stop the engine by following the procedure in the Engine Stopping topic in this manual and correct any fuel leaks that may occur. To Remove and Install Injection Nozzles
Special tooling is required. Refer to the Service Manual for your engine to remove and install injection nozzles or contact your Caterpillar dealer for assistance.Starting Motor and Alternator
Inspect for Proper Operation
Electric Starting Motor
AlternatorFor good life of the air starting motor, the air supply should be free of dirt and water. A lubricator should be used with the starting system. Use 10 weight non-detergent engine oil above 0°C (32°F) or diesel fuel at temperatures below 0°C (32°F). See the Lubricant Specifications for the proper oil to use.One unscheduled failure caused by any of these components will cost more in downtime than maintaining them before failure. The cost incurred to maintain these components before failure as recommended could be significantly less than if the component fails. By maintaining these components before failure, unscheduled downtime and potential damage to other engine parts are reduced. The prevention of unscheduled downtime saves money and lowers operating costs.Caterpillar recommends that the most cost effective method of operation and maintenance for these components is to inspect