TUBE AS 3T5917 - Caterpillar

Initial Pre-Start Settings
1. Rated Speed: If RATED SPEED was not set with a signal generator, set the RATED SPEED potentiometer to minimum (fully counterclockwise). Set the external speed trim, if used, to mid-position.2. Stability: Set the RATED and IDLE STABILITY potentiometers to mid position.3. Gain: Set the RATED and IDLE GAIN potentiometers to mid position.4. Idle Speed: If IDLE SPEED was not set with a signal generator, set the IDLE SPEED potentiometer at maximum (fully clockwise).5. Start Fuel Limit: Set the START FUEL LIMIT pot at mid point (maximum is fully clockwise).6. Close the circuit between terminals 9 and 10 (Close for Rated).Start-up Adjustments
1. Prepare to start the engine. Read this entire chapter before attempting to start the engine. Interrelated problems can occur, and an understanding of all possibilities is needed before using a control for the first time. In case the newly installed Flo-Tech Speed Control does not control engine speed, be prepared to: 1) remove the power from the control with the switch between the battery and terminal 1; and 2) initiate emergency shutdown procedures including manually shutting off the fuel supply.
TO PROTECT AGAINST POSSIBLE INJURY, LOSS OF LIFE, and/or PROPERTY DAMAGE WHEN STARTING the engine, turbine, or other type of prime mover, BE PREPARED TO MAKE AN EMERGENCY SHUTDOWN to protect against runaway or overspeed should the mechanical-hydraulic governor(s), fuel control(s), the driving mechanism(s), the linkage(s), or the control device(s) fail.
Adjust for Stable Operation
Read the following paragraphs before attempting initial engine start up. Dynamics must be quickly adjusted after initial start up.Immediately after the initial start up, it will be necessary to adjust the governor for stable operation. Idle and Rated dynamics are completely separate. The adjustments must be made according to the dynamics selected. In most cases the idle speed has been preset at maximum (fully clockwise) and Rated Speed is selected. In many cases the selection of rated speed will not indicate a desire for rated dynamics, which will be used when the engine is loaded. Idle dynamics may be selected and adjusted while rated speed is selected.If the engine is hunting at a rapid rate, slowly decrease the GAIN (turn the potentiometer counterclockwise) until performance is stable.If the engine is hunting at a slow rate, increase the STABILITY (turn the potentiometer clockwise) until the engine stabilizes. If increasing the STABILITY potentiometer does not stabilize the engine, it also may be necessary to slowly decrease the GAIN (turn the potentiometer counterclockwise).1. Start cranking the engine. If the signal from terminals 3 and 4 does not show a positive voltage (2 to 6 Vdc) check the MPU. Minimum voltage required from the MPU to operate the electronic control is 1.0 Vrms, measured at cranking speed or the lowest controlling speed. Measure the voltage while cranking with the speed sensor connected to the control. Be sure to prevent the engine from starting. At 5 percent of the lower value of the control's speed range, the failed speed-sensing circuit is cleared. For example 150 Hz is