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TROUBLESHOOTING & REPAIR | |||
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INPUT FILTER CAPACITOR DISCHARGE PROCEDURE (continued)
5. Be careful not to make contact with the capacitor
WARNINGterminals located at the top of the main inverter Board.
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ELECTRIC SHOCK can kill.
• Have an electrician install and service this equipment.
•Turn the input power off at the fuse box before working on equipment.
•Do not touch electrically hot parts.
•Prior to performing preventative maintenance, perform the following capacitor discharge procedure to avoid electric shock.
DISCHARGE PROCEDURE
1.Remove input power to the
2.Remove carrying handle using a 4mm allen wrench.
3.Using a crescent wrench, carefully remove the plastic nut from around the pressure regulator located on the top of the machine.
4.Using a 7mm nut driver, remove the case wraparound.
6.Obtain a high resistance and high wattage resistor
7.Locate the eight capacitor terminals located at the top rear of the main inverter board. See Figure F.1
8.Use electrically insulated gloves and insulated pli- ers. Hold the body of the resistor and connect the resistor leads across the two capacitor terminals. Hold the resistor in place for 10 seconds. DO NOT TOUCH CAPACITOR TERMINALS WITH YOUR BARE HANDS.
9.Repeat the discharge procedure for the other capacitors.
10.Check the voltage across the terminals of all capacitors with a DC voltmeter. Voltage should be zero. If any voltage remains, repeat this capacitor discharge procedure.
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FIGURE F.1 – LOCATION OF INPUT FILTER CAPACITOR TERMINALS
CAPACITOR INSULATED
TERMINALSPLIERS
INSULATED
GLOVES
RIGHT SIDE OF MACHINE | POWER |
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