0308627 JOHNSON "O"RING,Bearing housing to gearcase

Check Programmable Parameters (268-02)
A 268-02 Check Programmable Parameters diagnostic code will be generated if one or more of the programmable parameters has not been programmed. The unprogrammed parameters will be set to default. Certain aspects of the engine performance and engine monitoring may be affected.Personality Module Mismatch (253-02)
The ECM stores a code number in permanent memory. This code is called an Interlock Code that is associated with each personality module part number. The Interlock Code does not allow the engine to run if the wrong FLASH file has been downloaded into the ECM Personality Module.The Cat ET will warn you if a FLASH file that does not match the last file in the ECM has been downloaded. The Interlock Code must be reprogrammed with the Cat ET in order to allow the engine to run with new software. For instructions on reprogramming the Interlock Code, refer to the Special Instruction, SEHS9343. Installing the incorrect FLASH file into the ECM may void the Caterpillar warranty. The 3500B ECM and another Caterpillar ECM may appear to be similar, but the Electronic control modules are different. These different Electronic control modules cannot be interchanged. For example, a 3412E ECM cannot be used to replace a 3500B ECM. The Interlock Code cannot be reset if the wrong ECM is installed. If an incorrect ECM is used, a 253-02 Personality Module Mismatch diagnostic code becomes active. The fuel injection is disabled in order to prevent the engine from starting. Verify the correct ECM part number by checking the part number that is listed in the Parts Manual or by checking the last two characters of the ECM serial number. The correct ECM serial number ends with CD.When the engine is rerated, programming the Interlock Code to zero will prompt the ECM. The ECM will read the stored code and the ECM will match the stored code to the new Interlock Code.Engine Serial Number
The engine serial number should be programmed to match the engine information plate. The serial number is not programmed on a new ECM.Rated Fuel Position
This parameter is used to set engine power. A factory password is required to change this setting.
Table 1
Minimum     Default     Maximum    
Minimum Rack     Engine Dependent     Engine Dependent    Low Idle
The parameter defines the lowest rpm level.
Table 2
Minimum     Default     Maximum    
450 rpm     600 rpm     1000 rpm    Cooldown Speed
This parameter defines the engine speed when the engine shutdown is activated.
Table 3
Minimum     Default     Maximum    
450 rpm     600 rpm     1800 rpm    Engine Cooldown Duration
This parameter defines engine operation at the cooldown speed. Programming this parameter to 0 will disable this function.
Table 4
Minimum     Default     Maximum    
0 minutes     0 minutes     60 minutes    Engine Prelube Duration
The parameter sets the amount of time for prelubrication. Programming this parameter to 0 will disable this function.
Table 5
Minimum     Default     Maximum    
0 seconds     0 seconds     210 seconds    Crank Duration
The crank duration determines when the starting motors will be energized. The crank duration determines when the starting motors will be disengaged. Programming this parameter to 0 will prevent the ECM from engaging the starting motors.
Table 6
Minimum     Default     Maximum    
0 seconds     0 seconds     60 seconds    Maximum No. Of Cranking Cycles
This parameter is the total number of crank cycles that can be performed.
Table 7
Minimum     Default     Maximum    
0     0     10    Crank Terminate Speed
This parameter determines when the starting motor will disengage.