2010/04/26 Caterpillar

Industrial Engine:

3056E (S/N: 3561-34,125-126,165-244,246-249,254-327,329-457,459-752,754-815,817-853,855-1041,1044-1124,1127-1686,1688-2237,2239-3090,3092-3158,3160-3467,3469-3685,3687-3719,3721-3756,3758-3998,4001-4056,4059-4059,4061-4065,4067-4088,4090-4160,4162-4621,4623-4625,4627-4656,4658-4672,4675-4728,4730-4779,4781-4798,4800-4841,4843-4863,4865-4923,4925-4927,4929-5038,5040-5118,5120-5241,5243-5243,5245-5366,5372-5419,5421-5467,5469-5471,5473-6233,6235-6329,6331-6345,6347-6369,6371-6396,6398-6429,6434-6480,6487-6567,6569-6636,6639-6651,6653-6736,6738-6738,6740-6751,6755-6766,6772-6784,6789-6805,6808-6808,6811-6811)

There have been a number of isolated instances of issues with the 216-9786 Fuel Injector As .

The issues with the fuel injection nozzles are the following:

• Fuel leaking from the fuel injection nozzles

• Performance issues with the fuel injection nozzles

In order to prevent the issues occurring, ensure that the installation recommendations are followed.

• Ensure that the fuel injection nozzle is correctly located in the cylinder head. The fuel injection nozzle should be seated and nut thread started, prior to tightening.

• Ensure that the existing combustion washer is removed before the fuel injection nozzle is assembled.

• Ensure that a new combustion washer is installed to the fuel injection nozzle before assembly into the cylinder head.

• Use a suitably sized socket to tighten the fuel injection nozzle nut. Ensure that no damage to the nut occurs during the tightening process.

• Care should be taken to avoid damage to the high-pressure pipe during the assembly process.

• Guarantee cleanliness by leaving caps in place and by using clean tools.

For the correct procedure to remove the fuel injection nozzles, refer to Disassembly and Assembly, "Fuel Injection Nozzles - Remove". For the correct procedure to install the fuel injection nozzles, refer to Disassembly and Assembly, "Fuel Injection Nozzles - Install".

Ensure that the storage recommendations are followed.

• Store new nozzle holder assemblies in the as delivered condition, in original packaging.

• Storage time maximum of 4 years, thereafter all equipment should be checked by a Bosch dealer.

• Storage temperature should be between −30° to 60°C (−22° to 140°F).

• Atmospheric humidity should be between 0 to 80%.

• Protect new nozzle holder assemblies from rain, snow, and sunlight.

Ensure that the fuel recommendations are followed.

• Use diesel fuel in accordance with "EN 590".

• Ensure that fuel storage facilities are in accordance with "EN 590".

• Ensure that fuel filters are changed in line with the maintenance interval schedule. Refer to Operation and Maintenance Manual, "Maintenance Interval Schedule".

• Water separators are to be used where there exists a high risk of water contamination of storage tanks, for example, from condensation.

Refer to Caterpillar Commercial Diesel Engine Fluids Recommendations, SEBU6251 for more information.