Desa High Altitude Operation Adding Electrical Loads, Disconnecting Electric Loads

OWNER’S MANUAL

OPERATION

Continued

Adjusting the Idle Speed

IMPORTANT: Adjust the idle speed only:

•If the idle speed becomes too high.

•If the engine idle speed will not regulate (en- gine idles and speeds up again and again).

1.Turn Auto-Idle switch OFF. Start en- gine. Allow engine to warm up with no load for five minutes.

WARNING: Always set the idle speed before turning on the Auto- Idle. If idle speed is not set, the largerresistoronthecontrolboard may become hot. Heat from the

7.After reaching proper idle speed, tighten nut to secure solenoid mount- ing bracket (Models MGH4000DI, MGH5000EI, MGH5000EIE, and MGH6500AIE (see Figure 20).

8.Turn Auto-Idle switch ON. Make sure solenoid is engaged. When engaged, the plunger is pulled back into the solenoid.

9.If the engine speed is too slow, the engine will want to "hunt" or speed up and slow down repeatedly. When this occurs, increase engine speed by adjusting throttle stop screw on carbu- retor (refer to Carburetor Adjustment in Honda Engine Manual).

10.Replace the engine linkage cover (Models MGH4000DI, MGH5000EI, MGH5000EIE, and MGH6500AIE).

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.

I M P O R T A N T : (All models ex - cept HWI3000A, MGH3000A, and MGH6500AIE) Keep full power selector switch in the 120 VOLT ONLY position if only powering 120V items. Only move

resistormaydamagetheprotective coating on the control board.

2.	Remove engine linkage cover (Mod-
	els MGH4000DI, MGH5000EI,
	MGH5000EIE, and MGH6500AIE).
3.	Push plunger into solenoid body to manu-
	ally engage solenoid and set idle speed.
4.	Loosen nut that holds the solenoid
	mounting bracket to the generator
	(Models MGH4000DI, MGH5000EI,
	MGH5000EIE, and MGH6500AIE.
	See Figure 20).
5.	Slowly pull solenoid bracket away from
	engine.
6.	With a volt meter, check the no-load

Nut

Solenoid Mounting Bracket

ENGINE

OFF

switch to 120/240 VOLT position if power- ing 240V items.

1.	Check items to be powered. Their
	nameplate lists their wattage ratings.
	Note: The wattage ratings for some
	electrical motors are misleading. They
	may require up to three-times their
	rated wattage to start. You must figure
	total electrical 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.

output voltage at the 120-volt duplex

receptacle. At proper idle speed (2680

minimum RPM) the meter should read

50-60 volts. Lower settings will cause

the Auto-Idle to not operate properly.

Figure 20 - Solenoid Bracket Location,

Models MGH4000DI, MGH5000EI,

MGH5000EIE, and MGH6500AIE Only

If the load consists of electric motors,

start them first. Always start the largest

first. Start each motor individually.

DISCONNECTING ELECTRIC LOADS

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

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