Master Lock MGH8500AIE, MGH10000C Generator Grounding, Standby Installation to Home or Building

OWNER’S MANUAL

GENERATOR

GROUNDING

WARNING: You must prop- erly earth-ground generator be- fore starting. This will help guard againstdeadlyelectricshock.Only use grounded plugs with genera- tor. Only use grounded extension cords. Only use three-wire or double-insulated power tools.

Grounding generator helps prevent electric shock from a ground fault condition. Follow these steps to ground your generator:

1.	Locate ground lug on generator housing
	(see Figure 13).
2.	Loosen SEMS nut on ground lug. Note:
	Do not remove SEMS nut or set screw

WARNING: For a grounding point, do not use metal pipe be- ing used to carry combustible materials or gases.

Flat Washer

SEMS Nut

Ground Bolt

Spade Connector

HO

Detail A

STANDBY INSTALLATION TO HOME OR BUILDING

WARNING: Have standby in- stallation performed by a skilled, licensed electrician. Do not let anyone else wire into a utility circuit. Personal injury, equip- ment damage,or damage to home could occur.

IMPORTANT: This generator will not power your entire home. Most home utility electric service is more than 60 amps. This will exceed generator output. Only power needed items during a power outage. Make sure total wattage of electrical load does not

	from ground lug.
3.	Attach a spade connector to #10-8
	stranded-copper ground wire. Place
	spade connector on ground bolt between
	flat washer and SEMS nut. Tighten
	SEMS nut (see Detail A, Figure 13).
4.	Drive grounding point into ground.
	Note: Grounding point can be a stake,
	grounding rod, or pipe. Grounding
	point should be copper or brass.
5.	Attach ground wire to grounding
	point.

Youmustsupplythegroundwireandground- ing point. These do not come with generator.

E

Ground

Wire

Copper or Brass
Grounding Point	Alternator

FUEL F

		120V
120VI
GFC
		40V
		120T/2LOCK
	R	TWIS
HOUR	METE
	-IDLE
AUTO
	ON	SET
OFF		RE
		T
		RESE
	ET
RES

exceed rated wattage of generator.

You may need to use this generator as a standby power source. During a power out- age, the generator will power selected items in a building. Have generator and additional wiring installed by a skilled, licensed electri- cian. This is not a do-it-yourself job. Follow all local codes.

WARNING: The electrician must install a double-throw transfer switch. This isolates ex- isting electrical circuits from the utility power line. If not isolated,

Follow the National Electrical Code and all state and local codes. Consult your power company or a licensed electrician.

Figure 13 - Grounding Generator (MGH8500AIE Shown)

generator output will back-feed into utility power line. This may electrocute a power company line repair person.

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