0319577 JOHNSON EXHAUST COVER,Inner

Illustration 1 g00326424
Location Of Cover (1) Cover.
Illustration 2 g00326425
Component Location (2) Potentiometer. (3) Rotary switch. (4) Momentary switch.Programmability
The information for the Set Point is stored. The information for the Set Point is used in the control strategy of the SCM. To program the SCM, perform the following steps:
Turn the MCS to the STOP position.Note: Do NOT open cover (1) in a humid environment. Replace cover (1) as soon as possible.
Remove access cover (1) on the back side of the SCM. Potentiometer (2) , rotary switch (3) and momentary switch (4) are visible. Note the position of rotary switch (3) .
Turn the rotary switch (3) to the position that corresponds to the set point that is needing adjustment. The LCD display now shows the position of the rotary switch and the related data.
Press momentary switch (4) . The data information that corresponds to the position of the potentiometer will flash.
Adjust potentiometer (2) in order to change the desired data that is flashing. Once the data is correct, press momentary switch (4) . The data information stops flashing. Reprogramming the set point is now complete.
Repeat Step 3 through Step 5 in order to program another set point.
Return the rotary switch (3) to position "0" if the system has a fuel solenoid that is Energize To Run (ETR). Return the rotary switch (3) to position "1" if the system has a fuel solenoid that is Energize To Stop (ETS).Note: If the following conditions occur, consult Caterpillar Inc. concerning alterations to the specified set points for the engine. The engine does NOT run when in the program mode. The position of the rotary switch does NOT correspond to the operating mode that is programmed into set point "02" .
Turn the MCS to the OFF/RESET position.
Apply a continuous bead of 6V-6640 RTV Silicone Sealant to the seal surface of cover (1) . Install cover (1) . Install an 8C-4653 Security Seal on access cover (1) in order to prevent unauthorized tampering.Set Points
02 - ETR/ETS : This set point value will describe the operating mode (type of fuel solenoid) of the SCM.0 or 2 programs the SCM to operate with an Energized To Run (ETR) gas shutoff valve.1 or 3 programs the SCM to operate with an Energized To Shutdown (ETS) gas shutoff valve.2 or 3 programs the SCM to ignore the pressure or the temperature module faults. The high oil temperature, the low oil pressure and the sensor module malfunction will NOT shut down the engine.03 - Metric/English : A set point value of 0 will command the SCM to display the engine parameters in English units of measurement. A set point value of 1 will display the Metric units of measurement. See the chart that follows:
Table 1
Parameter     Metric/English    
Engine Oil Pressure     kPa/psi    
Engine Oil Temperature     Degrees C/Degrees F    
DC Volts     Volts/Volts    
RPM     RPM/RPM    
Service Meter     Hours/Hours    04 - Ring Gear Teeth : The value of this set point must be same as the number of teeth on the ring gear. The range of values are 95 to 350.05 and 06 - Overspeed : The set point for the overspeed shutdown is programmed with the rotary selector switch in the 05 position or 06 position. Position 05 has a range of 400 to 2950 rpm. Position 06 has a range of 2450 to 5000 rpm with increments of 10 rpm. Place the rotary switch in 05 or 06 position. The position that corresponds with the specified set point for the overspeed shutdown.Note: After programming the 05 or 06 set point, both set points are the same value.07 - Crank Termination Speed : Once the engine speed passes this set point, the starting motor is no longer energized. Range is 100 to 1000 rpm in increments of 10 rpm.08 - Oil Step Speed : Once the engine speed increases past this set point, the SCM considers the engine is above the low idle condition in regard to low oil pressure shutdown and alarm. The range is 400 to 1800 rpm in increments of 10 rpm.09 - Rated Oil Pressure Shutdown : The SCM enters a low oil pressure shutdown condition if the following two conditions are met. The engine lube pressure drops below this set point. The engine speed has exceeded the oil step speed for nine seconds. The range is 34 to 420 kPa (5 to 60 psi). An alarm signal is sent to the annunciator module at 34 kPa (5 psi) above the shutdown.10 - Idle Oil Pressure Shutdown : The SCM enters a low oil pressure shutdown condition if the following three conditions are met. The engine lube pressure drops below this set point. The engine has been running for more than nine seconds. The engine speed is below the oil step speed. The range is 20 to 336 kPa (3 to 50 psi). The alarm signal is sent to the annunciator module at 34 kPa (5 psi) above the shutdown.11 - High Oil Temperature Shutdown : If the engine oil temperature has exceeded the set point for 10 seconds, then the SCM enters a high coolant temperature shutdown condition. The range is 95° to 120°C (203° to 248°F). The alarm signal is sent to the annunciator module at 6°C (11°F) below the shutdown temperature.12 - Low Oil Temperature Alarm : If the engine coolant temperature is less than this set point for two seconds, then the SCM sends an alarm signal to the optional annunciator module. The range is 10° to 30°C (50° to 86°F) .13 - Overcrank Time : Overcrank time is the amount of total time that is needed in order to start the engine. This time is from when first asked to start until overcrank is indicated. The range is 10 to 360 seconds.14 - Cycle Crank : Cycle crank is the amount of time that the starting motor cranks.