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CHOPPER MODULE CAPACITOR DISCHARGE PROCEDURE (continued)
FIGURE F.2 – CHOPPER MODULE CAPACITOR TERMINAL DISCHARGE
INSULATEDPLIERS
B4 |
| |
B1 | B5 | |
| B6 | |
B2 | ||
| B3 |
INSULATED
GLOVES
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TEST PROCEDURE | |
1. | Turn the engine off. |
2. | Perform the Case Cover Removal proce- |
| dure. |
NOTE: It is necessary to remove the fuel cap in | |
order to take the case cover off the machine. | |
Be sure the fuel cap is ON when discharging | |
the chopper module capacitors. | |
3. | Locate the chopper module and capacitor |
| assembly on the inner machine baffle. See |
| Figure F.2 and the Wiring Diagram. |
NEVER USE A SHORTING STRAP TO DIS- CHARGE CAPACITORS. If the Lincoln rec- ommended resistor, or an equivalent resistor is used, the capacitors can be discharged by holding the resistor with insulated pliers and using the resistor terminals to bridge Chopper Module terminals B1 to B2, and B4 to B5. DO NOT TOUCH THE TERMINALS OR METAL PARTS OF THE PLIERS WITH YOUR BARE HANDS. Hold the resistor in place for about 10 seconds.
If another type of resistor is used, jumper leads may need to be attached to the resis- tor. The leads can then be used to connect terminals B1 to B2, and B4 to B5.
4. Using the volt/ohmmeter, check the voltage across B1 and B2, then B4 and B5. It should be zero volts in both cases.
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