TURBOCHARGER GP 3160397 - Caterpillar

T5 (-) & T6 (+) Actuator terminals - Disconnect wires from terminals T5 & T6. Measure resistance (30 to 40 ohms) across disconnected wires (with actuator still connected). Install wires correctly back to terminals when finished.T7 & T8 Magnetic Pickup - Disconnect wires from terminals T7 & T8. Measure resistance (approximately 200 ohms) across disconnected wires (with the Magnetic Pickup still connected).T9 & T10 Ramp Switch - Close for Rated Speed and open for Low Idle Speed. Jumper (close) for initial start-up.T11 & T12 Speed Trim - For initial start-up, remove Speed Trim Potentiometer wires and install jumper across terminals T11 and T12.
Do not install jumper across terminals T11 & T12 with engine running, or engine overspeed can result.
If Speed Trim Potentiometer is not used, check to see that jumper is across terminals T11 and T12.T13, T14 & T15 Droop Potentiometer - Remove wires from these terminals for initial start-up.T16 & T15 Ramp Time (Acceleration) Control - If used, leave terminals T15 and T16 open for initial start-up.II. Initial Adjustments (Static)
A. Rated Speed - Turn potentiometer fully CCW, then make setting at one turn back in CW direction. If used, set External Speed Trim to Mid Position (center).B. Stability - Set to Mid PositionC. Gain - Set to Mid PositionD. Ramp Time - Set to Mid PositionIII. Energized Governor Checks (Static)
The actuator or a 35 ohm, 10 watt load must be connected across terminals T5 and T6. Energize GovernorA. 12 (+) to T1 (-) - Measure voltage supply (24 to 35 VDC).*
40 VDC is maximum, and a voltage spike of 41 VDC will destroy the control. Use the 4W5391 Preregulator to provide overvoltage protection if a 32V battery system is used or if battery maintenance may be a problem.
B. T3 to T4 - Defeat the failsafe circuit (see STATIC CHECKS, Visual Inspection at Governor, Step 2 for current method).C. T6 (+) to T5 (-) - Measure actuator voltage (approx. 7 VDC).D. T3 to T4 - Activate for correct failsafe circuit operation.E. T6 (+) to T5 (-) - Measure voltage (0 VDC).F. T6 (+) to T15 (-) - Measure voltage (8.5 1 VDC). If any problems are found during these tests, make reference to the TROUBLESHOOTING SECTION of this manual.*In some shutoff systems, the supply voltage is interrupted by a shutdown relay. It may be necessary to jumper around this relay.Dynamic Checks
I. Initial Engine Operation
A. Make sure all Static Checks are completed before Dynamic Checks are started.B. Make sure failsafe circuit is activated at terminals T3 and T4.C. Close the Ramp Switch (or put jumper across terminals T9 and T10).D. Activate 2301 Governor with power.E. Magnetic Pickup 1. Activate Manual Shutoff (or disconnect wires to actuator from terminals T5 & T6).2. Crank the engine and measure output voltage of magnetic pickup across terminals T7 & T8 (should be greater than 1 VAC). *3. Release Manual Shutoff (or reconnect actuator wires back to terminals T5 & T6).
The engine can overspeed (run out of control) due to improper governor assembly