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It also powers the 120V receptacles at reduced wattage capacity. IMPORTANT: Do not move the full power selector switch while powering electrical items.Unplugallitemsbeforemovingswitch. Failure to do so can damage switch. Models HWI3000A,MGH3000GA,MGH3000A,and MGH6500AIE do not have this switch. These models provide full power to all receptacles. 120 VOLT ONLY 120/240 VOLT Position Position Figure 3 - Full Power Selector Switch AUTO-IDLE SYSTEM TheAuto-IdleSystemallowstheenginetoidle down or run at a slower speed when the generator is not being used to supply power. The Auto-idlesystemcanbeturnedONorOFFby arockerswitchonthecontrolpanel.Whenthe 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 itemis pluggedinandturnedon)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 (Models MGH5000EIE and MGH6500AIE) Models MGH5000EIE and MGH6500AIE have electric starters. A battery is not supplied with generator. You must provide a 12volt, 32-amp-hour battery. For more battery information, see Battery, page 8. GROUND FAULT CIRCUIT INTERRUPTER RECEPTACLE All models (Except HWI3000A) have a 120volt ground fault circuit interrupter (GFCI) receptacle. The GFCI receptacle is on the control panel or top cover of alternator (models MGH3000GA and MGH3000A only). 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 receptacle. 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 qualified electrician for repairs. 6 118683 OWNER’S MANUAL GENERATOR FEATURES Continued 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. RESETTEST Figure 4 - GFCI Receptacle ENGINE CIRCUIT BREAKER (Models MGH5000EIE and MGH6500AIE) This circuit breaker, or fuse, protects the battery charging circuit. A short circuit will trip the circuit breaker. The circuit breaker will also trip if you install battery wrong. Push circuit breaker button to reset. OFF ON START ENGINE SW CIRCUIT BREAKER ON/push OFF Engine Circuit Breaker Button Figure 5 - Engine Circuit Breaker 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 breakertripping.Tohelppreventthis, startelectricmotorsfirst.Connectadditional items to generator after starting motors. If this continues to happen, reduce the total generator load. Normal 20 Tripped 20 Figure 6 -Receptacle Circuit Breaker Button Note: High ambient temperature will cause nuisance tripping. ENGINE OIL We ship the generator without oil in the engine crankcase. You must add oil before starting engine. See engine owner’s manual for specific oil type. CHECKING OIL LEVEL AND ADDING OIL Follow steps below to check oil level. Make sure engine is level and stopped. 1. Remove dipstick (see Figure 7). Wipe dipstick clean. 2. Insert dipstick into oil filler neck. Do not screw it in. Oil level should be at top of filler neck. Oil should cover most of dipstick. 3. If level is low, fill to top of oil filler neck (see Figure 7). Only use oil recommended in engine owner’s manual. Note: If oil level is too low, oil alert system will shutdown engine and prevent engine from restarting. Oil Level At Top ...