Master Lock MGR2900A - Manual (Page 7)

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OWNER’S MANUAL
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 additional
items to generator after starting motors. If
this continues to happen, reduce the total
generator load.
Note: High ambient temperature will cause
nuisance tripping.
20 20
Normal Tripped
Tripped Normal
Figure 5 - 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 6). 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 6). Only use oil recom-
mended in engine owner’s manual.
Note: If oil level is too low, oil alert system
will shutdown engine and prevent engine
from restarting.
Figure 6 - Checking Oil Level (Model
MGR4500I Shown)
FUEL
Oil Level
At Top Of
Filler Neck
Dipstick
Oil
GENERATOR
FEATURES
Continued
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.
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. Always
allow room for fuel to expand.
If you overfill tank, fuel can
overflow onto hot engine. This
can cause fire or explosion.
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 container.
Store fuel in a well-vented area
free of open flames or sparks.