Master Lock MGH10000C Auto-Idle System, Electric Start, Engine Circuit Breaker, Test Procedure

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PORTABLE GASOLINE GENERATORS

GENERATOR

FEATURES

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AUTO-IDLE SYSTEM

TheAuto-IdleSystemallowstheenginetoidle down or run at a slower speed when the gen- erator is not being used to supply power. The Auto-idle system can be turned ON or OFF by a rocker switch on the control panel. When the switch is in the OFF position, the engine runs at full speed all of the time. When the switch is in the ON position, the engine slows down to idle speed until an electrical load is applied. When a load is applied to the generator (an electrical item is plugged in and turned on) the engine speeds up to the preset speed required to produce the correct voltage.

IMPORTANT: A minimum current load of 1 Amp is required to disengage the auto idle solenoid and cause the engine to come up to speed for correct voltage. Powering items at reduced engine speed will damage generator and powered items.

ELECTRIC START

A battery is not supplied with generator. You must provide a 12-volt, 32-amp-hour battery. For more battery information, see Battery, page 8.

GROUND FAULT CIRCUIT INTERRUPTER RECEPTACLE

The GFCI receptacle is on the control panel. The GFCI protects you against hazardous electrical shock caused when your body becomes a path through which electricity travels to reach ground. This could happen when you touch an appliance or cord that is ‘live’through faulty mechanism, damp or worn insulation, etc.

When protected by the GFCI, you may still feel a shock, but the GFCI should cut it off quickly. A person in normal health should not receive serious injury. Note: Infants and very small children may still be affected.

Test Procedure

Check the GFCI receptacle every month. This insures it is working right.

1.Push black TEST button. Red RESET button should pop out. This should trip GFCI, resulting in no electrical power at receptacle. Verify this by plugging test lamp with good bulb into recep- tacle. If lamp does not work, GFCI receptacle is good.

WARNING: If RESET button does not pop out, do not use the GFCI receptacle. Contact a quali- fied electrician for repairs.

2.If the GFCI receptacle tests okay, restore power by pushing the RESET button back in. The test lamp should work at this time. IMPORTANT: You must press the RESET button firmly and fully. It should lock into place. If the GFCI does not lock into place, do not use receptacle. Contact a qualified electrician for repairs.

ENGINE CIRCUIT BREAKER

This fuse protects the battery charging cir- cuit. A short circuit will trip the break the fuse. The fuse will also break if you install battery wrong. Replace fuse if engine will not start. The fuse is located inside of the keyswitch box.

RECEPTACLE CIRCUIT BREAKER

The circuit breakers protect the receptacles and alternator. Overloading generator will trip circuit breaker. A short circuit in item being powered will also trip breaker. If this occurs,unplugelectricalloadfromreceptacle. Let circuit breaker cool down. Push circuit breaker button to reset.

Electric motors need higher starting current. They require up to three-times their rated wattage to start. The starting current needed may be too high. This can cause nuisance circuit breaker tripping. To help prevent this, start electric motors first. Connect additional items to generator after starting motors. If this continues to happen, reduce the total generator load.

Normal 20 Tripped 20

Figure 5 - Receptacle Circuit Breaker Button

Note: High ambient temperature will cause nuisance tripping.

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Figure 4 - GFCI Receptacle

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