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ENGINE AR-COMPLETE 1399789 - Caterpillar

1399789 ENGINE AR-COMPLETE Caterpillar parts 3406E ENGINE
Alternative (cross code) number:
Caterpillar 1399789 ENGINE AR-COMPLETE

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Compatible equipment models: 1399789:

TRUCK ENGINE  3406E   Caterpillar
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1. Connect a multimeter between terminal (3) and nut (2). Put bulb (1) in heat sink then into a pan of water. Do not let the bulb have contact with the pan (see contactor switch for more detail).2. Put a 2F7112 Thermometer in the water to measure the temperature.3. Refer to Water Temperature Sending Unit in the Specifications section. Take resistance readings at the temperature shown.4. If a unit does not have the correct resistance readings, replace the unit.Oil Pressure Sending Unit
Sending Unit for Oil Pressure
(1) Terminal connection. (2) Fitting. 1. Connect the sending unit to a pressure source that can be measured with accuracy.2. Connect an ohmmeter between fitting (2) and terminal (1).3. Refer to Oil Pressure Sending Unit in the Specifications section. Take resistance readings at the pressure shown in the chart. Tap sender when checking calibration. Take readings on decreasing pressure. 4. If a unit does not have the correct resistance readings, replace the unit.Electric Gauges
1. Put the gauge in position with the letters horizontal and the face 30 degrees back from vertical.
Wiring Diagram For Test
(1) Terminal (for test voltage). (2) Test Resistance.2. Connect the gauge in series with the power source and the middle test resistance.3. Let the gauge heat at the middle resistance for five minutes, then check the pointer position for all of the resistance given. Refer to the gauge area in the Specifications section for the Calibration Chart of each gauge.Magnetic Pickup
Typical Illustration(1) Clearance between magnetic pickup and flywheel ring gear ... 0.55 to 0.83 mm (.022 to .033 in) With the engine stopped, turn the pickup in until it comes in contact with teeth on the flywheel ring gear. Turn the pickup out 1/2 turn. This will give ... 0.55 to 0.83 mm (.022 to .033 in) clearance at (1).(2) Tighten the locknut to a torque of ... 45 7 N m (33 5 lb ft)Tachometers
Tachometers can be adjusted by the following procedure.1.Remove the plastic plug on the rear of the tachometer. 2. Using a small screw driver, turn the adjusting screw to increase or decrease the tachometer reading.3. Replace the plastic cap.Starting Motor Adjustments
Pinion Clearance
When the solenoid is installed, make an adjustment of the pinion clearance. The adjustment can be made with the starting motor removed.
Connection For Checking Pinion Clearance
(1) Connector from MOTOR terminal on solenoid to motor. (2) SW terminal. (3) Ground terminal. 1. Install the solenoid without connector (1) from the MOTOR connections (terminal) on solenoid to the motor.2. Connect a battery, of the same voltage as the solenoid, to the terminal (2), marked SW.3. Connect the other side of the battery to ground terminal (3).4. Connect for a moment, a wire from the solenoid connection (terminal) marked MOTOR to the ground connection (terminal). The pinion will shift to crank position and will stay there until the battery is disconnected.
Pinion Clearance Adjustment
(4) Shaft nut. (5) Pinion. (6) Pinion clearance.5. Push the pinion toward the commutator end to remove free movement.6. Pinion clearance (6) must be

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