Battery/ Voltage Check; Accelerator Signal Voltage; Motor Voltage At A1 And A2; Tow/Run Switch - Tomberlin E-MERGE 2007 Maintenance Manual

Check Procedure 1-- Battery/ voltage check
Note: to pe rform the following check proce dures, the battery should be maintained properly and charge d
fully.
Use a DC multimeter set to 200V, connect the black (-) probe to the negative output binding post of the battery and
connect the red (+) probe to the positive wire of the battery.
Check Procedure 2--Accelerator signal voltage
Please refer to Chapter 1 Protection for Electrical Safety.
1. Use a DC multimeter set to 20V, connect the black (-) probe to the negative binding post of the battery and
connect the red (+) probe to Wire 7 (black/white wire). The reading should be around 0V at the original position
o f the pedal. Press down the accelerato r pedal slowly, observe the reading on the multimeter. When the pedal is
pressed, the reading should be increased by 0V-5V until the pedal is pressed down completely.
2. If the reading is not increased while pressing the pedal, the accelerator should be replaced.
3. If the reading is lower than 4.5V when the pedal is pressed down completely, the electric vehicle can not run at
the rated max speed. Please check whether the accelerator is in good condition.
Check Procedure 3-- Motor voltage at A1 and A2
Please refer to Chapter 1 "Protection for Electrical Safe ty".
1． Jack up the rear axle of the electric vehicle so that the rear wheels are in the air.
2. Check that the battery is wired correctly, then connect the black (-) probe of a multimeter set at 200V DC to
motor terminal A2 and connect the red probe (+) to motor terminal A1.
3. With TOW/RUN switch on position RUN, turn the Switch Forward/Reverse to FORWARD, then press the
accelerator pedal slowly.
4. While the accelerator pedal is pressed, the voltage reading should be increased from 5V when the accelerator
pedal switch is closed to 48V when the accelerator pedal is pressed down completely.
4.1 If no voltage reading is displayed, check the accelerator. Re fe r to " Chec k Proce dure 2--Accelerator voltage".
4.2 Disconnect the battery cable according to the directions. P lease refer to Chapter 1 "P rotec tion for Elec trical
Safe ty".
4.3 Check the continuity of motor binding posts A1, A2 and F1, F2. In addition, check all motor wires for
continuity. Refer to "Motor" in Chapter 12.
Check Procedure 4 - TOW/RUN switch
Please refer to Chapter 1 "Protection for Electrical Safe ty".
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