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103988
OWNER’S MANUAL
GENERATOR
FEATURES
Continued
ENGINE CIRCUIT BREAKER
(Models MGH5000CIE,
MGH7000C, MGH7000CI, and
MGH10000)
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. On
Model MGH10000, the fuse is located in-
side of the Keyswitch box.
OFF
ON
START
ENGINE SW
CIRCUIT
BREAKER
ON/push OFF
Figure 5 - Engine Circuit Breaker
Engine Circuit
Breaker Button
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, unplug electrical load from recep-
tacle. 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 ad-
ditional items to generator after starting
motors. If this continues to happen, reduce
the total generator load.
20
20
Tripped
Normal
Figure 6 - Receptacle Circuit Breaker
Button
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. For Model MGH10000
only, the oil should be between the two
dots on dipstick.
3. If level is low, fill to top of oil filler
neck (see Figure 7). For Model
MGH10000 only, fill to top dot on dip-
stick. 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.
Note:
High ambient temperature will cause
nuisance tripping.
Figure 7 - Checking Oil Level (Model
MGH4000C Shown)
FUEL
WARNING: Gasoline presents
a hazard of fire or explosion.
Gasoline is flammable. Its vapor
is explosive.
• Keep fuel out of children’s
reach.
•
Refuel generator in a well-
vented area. Do not fill fuel tank
in the dark. Do not refuel while
engine is running. Unhook all
electrical loads and shut off
engine before refueling.
• Do not overfill fuel tank. Al-
ways allow room for fuel to
expand. If you overfill tank, fuel
can overflow onto hot engine.
This can cause fire or explo-
sion. After refueling, tightly
close fuel tank cap.
• Do not spill fuel. Fuel or fuel
vapor may ignite. If fuel spills,
make sure area is dry before
starting engine.
• Never smoke in refueling area.
Never allow open flames or
sparks in area.
• Store fuel in approved con-
tainer. Store fuel in a well-
vented area free of open flames
or sparks.
Use clean, fresh, unleaded gasoline. Use
gasoline with octane rating of 86 or higher.
Service station gasoline pumps should dis-
play the octane rating. Using gasoline with
lower octane level could damage engine.
Avoid getting dirt, dust, or water in fuel
tank. Do not mix oil with gasoline.
See engine owner’s manual for more
information.
Oil Level
At Top Of
Filler Neck
Dipstick
Oil