Master Lock MGH6500IE Maintenance and Repairs, High Altitude Operation Adding Electrical Loads

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PORTABLE GASOLINE GENERATORS

OPERATION

Continued

HIGH ALTITUDE OPERATION

This generator will not perform well at high altitudes without proper adjustment. See engine owner’s manual for details.

ADDING ELECTRICAL

LOADS

IMPORTANT: Do not overload generator. Make sure total wattage of all electrical loads does not exceed rated wattage of generator. Overloading may shorten generator life. It could also cause internal damage to genera- tor. Overloading will trip circuit breaker.

IMPORTANT: (All models except HWI3000, MGH3000,MGH3000PR, MGH6500IE,and MGH10000A)Keepfullpowerselectorswitch in the 120 VOLT ONLY position if only pow- ering 120V items. Only move switch to 120/ 240 VOLT position if powering 240V items.

1.Check items to be powered. Their nameplate lists their wattage ratings.

Note: The wattage ratings for some elec- trical motors are misleading. They may require up to three-times their rated watt- age to start. You must figure total electri- cal load wattage. Make sure total wattage of all electrical loads does not exceed rated wattage of generator. See Determining Electrical Load For Generator, page 10.

2.Start engine. Let engine reach full speed.

3.Connect electrical loads one at a time. If the load consists of electric motors, start them first. Always start the larg- est first. Start each motor individually.

DISCONNECTING ELECTRIC LOADS

Remove electrical loads one at a time. Re- move voltage sensitive items first. Voltage sensitive items include TVs, VCRs, and other home electronic items.

STOPPING ENGINE

IMPORTANT: The engine speed is preset. The throttle is locked in preset position. Do not adjust throttle.

Follow the steps below to stop engine.

1.Remove all electrical loads from gen- erator (see Disconnecting Electrical Loads). Remove electrical loads one at a time.

2.Let engine run for two or three min- utes after removing electrical loads. This lets engine cool slightly.

3.Turn engine switch to the OFF posi- tion (see Figure 29).

4.Turn fuel valve lever off except on Model MGH3000PR. Do this by mov- ing valve lever fully to the left (see Fig- ure 30).

Model

MGH3000PR

Models HWI3000,

MGH3000G, MGH3000,	ENGINE SW
	ON
MGH4000C, MGH4000CI,
	OFF
MGH5000D, MGH5000DI,
MGH6000D and
MGH6000DI

HONDA

Models
MGH5000DIE,		ON
MGH6500IE, and	OFF	START

MGH10000A

ENGINE SW

CIRCUIT

BREAKER

ON/push OFF

Figure 29 - Engine Switch In OFF Position

Fuel Valve Lever

(Off Position)

Figure 30 - Fuel Valve Lever Off (Model MGH6500IE Shown)

MAINTENANCE AND REPAIRS

WARNING: Only a qualified electrical service person should service and repair the alternator on this generator. Use only fac- tory approved replacement parts.

CAUTION: The engine speed is preset. The throttle is locked in preset position. Do not adjust throttle. Preset position lets en- gine run at 3600 RPM under load. The engine must maintain 3600 RPM for generator to create cor- rect voltage. Running engine at lower speeds will damage gen- erator and powered items.

CAUTION: Shut off generator before performing maintenance.

IMPORTANT: Keep generator level when servicing. Never turn generator upside down or stand it on end to service.

Note: We supply the engine owner’s manual with generator. Refer to that manual for questions concerning engine maintenance and repairs.

Non-engine parts require little maintenance. Keep generator clean. Use a damp cloth to clean outside surfaces. Never use water to clean generator. Water can cause damage to internal parts. Use vacuum to clean air inlet and outlet louvers of alternator.

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