2011/09/23 Caterpillar

Marine Engine:

C32 MARINE (S/N: RND1-UP; RNR1-UP; RNY1-UP; RNZ1-UP)

Description of Change: New software is now used on the engines that are listed above. In the new software the programmable torque limit parameter ranges have been updated to the correct values.

Adaptable To:

Table 1

Flash Files for C32 Marine Propulsion Engines
Engine Serial Numbers	Brake Horsepower Rating	TMI Test Specs	Primary Software P/N	Backup Software P/N
S/N:RND, RNY	660 BHP @ 1800 RPM	0K8325	376-2278	376-2279
S/N:RND, RNY	750 BHP @ 1800 RPM	0K8324	376-2280	376-2281
S/N:RND, RNY	850 BHP @ 1800 RPM	0K8323	379-9477	379-9478
S/N:RND, RNY	950 BHP @ 1600 RPM	0K9046	376-2284	376-2285
S/N:RND, RNY	950 BHP @ 1600 RPM	0K8320	376-2286	376-2287
S/N:RND, RNY	1000 BHP @ 1800 RPM	0K8322	379-9479	379-9480
S/N:RND, RNY	1200 BHP @ 2000 RPM	0K4108	378-7817	378-7818
S/N:RND, RNY	1300 BHP @ 2100 RPM	0K8318	378-7819	378-7820
S/N:RND, RNY	1300 BHP @ 1800 RPM	0K8317	378-7821	378-7822
S/N:RND, RNY	1450 BHP @ 2300 RPM	0K8316	379-9481	379-9482
S/N:RND, RNY	1600 BHP @ 2300 RPM	0K8314	379-9483	379-9484
S/N:RNR, RNZ	1700 BHP @ 2300 RPM	0K9608	376-2300	376-2301
S/N:RNR, RNZ	1600 BHP @ 2300 RPM	0K9652	379-9485	379-9486
S/N:RNR, RNZ	1450 BHP @ 2300 RPM	0K9653	379-9487	379-9488
S/N:RNR, RNZ	1800 BHP @ 2300 RPM	0K9807	376-2306	376-2307
S/N:RNR, RNZ	1902 BHP @ 2300 RPM	0K7272	376-2308	376-2309

Flashing the latest software from the Service Information System (SIS) or from the Technical Marketing Information(TMI) will help ensure that the parameters are correct. Refer to Table 1.

Refer to A&I Guide, LEBM0001, "Marine Engine Electronics C7-C32Application and Installation Guide " for torque limiting functionality description.

The new software is adaptable back to the first production of the listed engines.

Table 2

Effective Serial Numbers

S/N:RND00340-UP

S/N:RNR00116-UP

S/N:RNY01273-UP

S/N:RNZ00766-UP

The change is effective at the factory with the engine serial numbers that are listed in Table 2.