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PORTABLE GASOLINE GENERATORS
R
Figure 4 - GFCI Receptacle
2. If the GFCI receptacle tests okay,
restore power by pushing the RESET
button back in. The test lamp should
work at this time. IMPORTANT: You
must press the RESET button firmly
and fully. It should lock into place. If
the GFCI does not lock into place, do
not use receptacle. Contact a qualified
electrician for repairs.
GROUND FAULT CIRCUIT
INTERRUPTER RECEPTACLE
All models have a 120-volt ground fault
circuit interrupter (GFCI) receptacle. The
GFCI receptacle is on the control panel or top
cover of alternator (MGR2900A). The GFCI
protects you against hazardous electrical
shock caused when your body becomes a
path through which electricity travels to
reach ground. This could happen when
you touch an appliance or cord that is ‘live’
through faulty mechanism, damp or worn
insulation, etc.
When protected by the GFCI, you may still
feel a shock, but the GFCI should cut it off
quickly. A person in normal health should
not receive serious injury. Note: Infants and
very small children may still be affected.
Test Procedure
Check the GFCI receptacle every month.
This insures it is working right.
1. Push TEST button. RESET button should
pop out. This should trip GFCI, result
-
ing in no electrical power at receptacle.
Verify this by plugging test lamp with
good bulb into receptacle. If lamp does
not work, GFCI receptacle is good.
WARNING: If RESET button
does not pop out, do not use the
GFCI receptacle. Contact a quali
-
fied electrician for repairs.
GENERATOR
FEATURES
OIL ALERT SYSTEM
The oil alert system protects the engine from
low oil damage. This system automatically
shuts down the engine and prevents engine
restarting if the oil level falls too low.
Note: When this happens, the engine switch
remains in the ON position. The oil alert
system is wired into the ON/OFF Switch.
If this system shuts down the engine, the
engine will not start until you add oil. Add
oil to engine (see Engine Oil, page 7).
Note: Operate generator on a level surface.
If not level, the oil may flow away from the
oil level sensing device. This will cause the
oil alert system to shut down engine.
See engine owner’s manual for more
information.
Figure 2 - Engine Switch Location
ENGINE SW
ON
OFF
120 + 240 VOLT
Position
120 VOLT ONLY
Position
Figure 3 - Voltage Selector Switch
120v
ONLY
VOLTAG
E
Selector
120v
+
240v
VOLTAGE SELECTOR
SWITCH
All models except MGR2900A have a volt-
age selector switch on the control panel. The
switch has two positions: 120 VOLT ONLY,
and 120 + 240 VOLT.
120 VOLT ONLY: This position sends full
power to the 120V receptacles only. 240V
power is not available. Use this position
when powering 120V items only.
120 + 240 VOLT: This position sends full
power to the 120/240V receptacle. It also
powers the 120V receptacles at reduced
wattage capacity.
IMPORTANT: Do not move the voltage selec-
tor switch while powering electrical items. Un-
plug all items before moving switch. Failure to
do so can damage switch. Model MGR2900A
does not have this switch. This model provides
full power to all receptacles.
AUTO-IDLE SYSTEM
(Except Model MGR2900A)
The Auto-Idle System allows the engine to idle
down or run at a slower speed when the gen-
erator is not being used to supply power. The
Auto-idle system can be turned ON or OFF by
a rocker switch on the control panel. When the
switch is in the OFF position, the engine runs
at full speed all of the time. When the switch
is in the ON position, the engine slows down
to idle speed until an electrical load is applied.
When a load is applied to the generator (an
electrical item is plugged in and turned on) the
engine speeds up to the preset speed required
to produce the correct voltage.
IMPORTANT: A minimum current load
of 1 Amp is required to disengage the auto
idle solenoid and cause the engine to come
up to speed for correct voltage. Powering
items at reduced engine speed will damage
generator and powered items.
120v
ONLY
VOLTAG
E
Selector
120v
+
240v
R
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