LEVER-TURN SIGNAL 3178667 - Caterpillar

Prepare the Engine for Initial Start-up
Restore electrical power to the engine.Adjust the Position Sensor for the Air Choke
Turn the engine control switch to the STOP position.
Illustration 54 g01026805
Terminal strip inside the box for the hydrax driver modules
Verify that the hydraulic actuator system is receiving electrical power. Connect a voltmeter between terminals 1 and 4 in the box for the hydrax driver modules. The voltage between the terminals must be approximately +24 VDC.Note: If the voltage is incorrect, there could be a problem with the wiring. Check the connections of the wiring for the hydrax system. Correct any errors. Refer to the engine's troubleshooting manual, if necessary.
Fully open the air choke. Connect the voltmeter between terminals 4 and 14. The voltage must be between 1.6 VDC and 1.8 VDC. Perform the following procedure if the voltage is incorrect.
Verify that the air choke is fully open.
Illustration 55 g01026765
Top view of the position sensor for the air choke
(1) Set screw
(2) Coupling
Loosen set screw (1).
While you are monitoring the voltage, rotate coupling (2) in order to obtain a voltage measurement between 1.6 VDC and 1.8 VDC.
Carefully tighten the set screw.
Fully close the air choke. The voltage measurement must be greater than 8.0 VDC. Move the linkage from the full closed position to the full open position a few times. Verify that the voltages remain within the specifications in the closed position and in the open position. If necessary, perform this procedure again until the readings are correct.Adjust the Position Sensor for the Wastegate
Fully close the wastegate. Connect the voltmeter between terminals 4 and 21 in the box for the hydrax driver modules. The voltage must be between 1.6 VDC and 1.8 VDC. Perform the following procedure if the voltage is incorrect.
Verify that the wastegate is fully closed.
Illustration 56 g01026765
Top view of the position sensor for the wastegate
(1) Set screw
(2) Coupling
Loosen set screw (1).
While you are monitoring the voltage, rotate coupling (2) in order to obtain a voltage measurement between 1.6 VDC and 1.8 VDC.
Carefully tighten the set screw.
Fully open the wastegate. The voltage measurement must be greater than 8.0 VDC. Move the linkage from the full closed position to the full open position a few times. Verify that the voltages remain within the specifications in the closed position and in the open position. If necessary, perform this procedure again until the readings are correct.Adjust the Position Sensor for the Fuel Valve
Fully close the fuel valve. Connect the voltmeter between terminals 4 and 7. The voltage must be between 1.6 VDC and 1.8 VDC. Perform the following procedure if the voltage is incorrect.
Verify that the