ALTERNATOR GP 6N9294 - Caterpillar

Note: The maintenance interval for the heat exchanger will vary depending on operating conditions and environment. The maintenance interval should be evaluated at the following intervals:
At the interval stated in this Operation and Maintenance Manual, "Maintenance Interval Schedule"
After the first 1000 hours of engine operation.
At least once every 2 yearsThe raw/sea water that is circulated through the heat exchanger and the amount of operating time of the vessel affects the following items:
Cleanliness of the heat exchanger plates
Effectiveness of the heat exchanger systemOperating the engine in water that contains silt, sediment, salt, algae, or other significant contaminants will have an adverse effect on the heat exchanger system. In addition, intermittent use of the vessel will adversely affect the heat exchanger system.The following items indicate that the heat exchanger may require cleaning:
Increased coolant temperature
Engine overheating
Excessive pressure drop between the water inlet and the water outletAn operator that is familiar with the normal operating temperature of the coolant can determine when the coolant temperature is out of the normal range. Inspection and maintenance of the heat exchanger is required if the engine is overheating.For information on maintenance of the heat exchanger and cleaning of the heat exchanger, refer to Disassembly and Assembly, "Heat Exchanger - Disassemble".Your Cat dealer has the equipment and the personnel in order to measure the pressure drop across the heat exchanger.Consult your Cat dealer for more information.