G 3.7A;G/GS 5.6A;GS 8.5V;GS 9.7V Portable Generator Repair
wc_tx000208gb.fm 54
6.11 Main Circuit Breaker
See Graphic: wc_gr000545 and wc_gr000559
The main breaker protects the generator from severe overloads or
short circuits. If the circuit breaker opens, turn the engine off
immediately and determine the cause before restarting. Check the
appliances and tools attached to the generator for defects and make
sure their power requirements do not exceed the power rating of the
generator or the current limit of the receptacles.
When the circuit breaker opens, the breaker lever will snap down. To
reset the circuit breaker, lift lever up.
6.12 Ground Fault Interrupt
See Graphic: wc_gr000545 and wc_gr000559
GFI’s differ from circuit breakers, which only react to high current
conditions. GFI’s sense very small current changes in the “HOT” and
“NEUTRAL” lines in a circuit. They react immediately to open the
circuit if a current leak is detected.
Each GFI should be tested for proper operation every time the
generator is used.
To test GFI:
6.12.1 Start generator.
6.12.2 Place main circuit breaker in the closed position.
6.12.3 Push test button (a) on receptacle in. The RESET button (b) will pop
out. Power is now off at the receptacle. If the RESET button does not
pop out, the GFI is not working. Do not run generator until this problem
can be corrected.
6.12.4 To restore power to the receptacles, push the RESET button in.
If the RESET button pops out during operation, stop the generator and
check equipment for defects.
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