AIR CLEANER GP 2019091 - Caterpillar

Power GenerationC18 MAR GENSET (S/N: SSM1-180; SSW1-138)EngineC18 (S/N: TNA1-5325; GTB1-5135; T2R1-5651; GEX1-5275)Marine EngineC18 MARINE (S/N: JHL1-740; DTP1-473)Description Of Change: The new engine software that is now used resolves multiple issues such as governor gains, jacket water temperature limits, low transmission pressure alarm, incorrect timing calibration instructions, and new high exhaust temperature range.Adaptable To: The following changes are adaptable to the products within the listed serial numbers, and are effective with all products after the listed serial numbers.The following changes are made with the installation of the new software:
Reduction of the governor gains at lower speeds (0-1200 rpm) on 50Hz engines.
Reduction of the cylinder cutout jacket water temperature lower limit to 65° C (149° F).
Inclusion of a new low transmission pressure alarm in the programmable monitoring system in Cat® Electronic Technician (ET). Added a low auxiliary pressure feature to Auxiliary/Generator Set engines as shown in the tables below.
Cat ET 2017C will no longer instruct to install a timing calibration probe.
Programmable monitoring system now has a range of 100° C (212° F) to 830° C (1526° F) for high exhaust temperature.
Table 1
Monitoring System Parameters
C18 Marine SCAC Auxiliary Engine and Generator Set
Parameter SPN Default State Trip Point (kPag) Delay (Sec)
Min Max Default Min Max Default
Low Auxiliary Oil Pressure
E644-1 127-17 Off 0 3500 200 0 120 5
E644-2 127–18 Off 0 3500 200 0 120 5
E644-3 127-1 Off 0 3500 200 0 120 5
Table 2
Monitoring System Parameters
C18 Marine SCAC Propulsion Engine
Parameter SPN Default State Trip Point (kPag) Delay (Sec)
Min Max Default Min Max Default
Low Transmission Oil Pressure
E644-1 127-17 Off 0 3500 200 0 120 5
E644-2 127–18 Off 0 3500 200 0 120 5
E644-3 127-1 Off 0 3500 200 0 120 5