Master Lock MGH8500IE - Manual (Page 12)

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PORTABLE GASOLINE GENERATORS
R
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.
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 9.
2. Start engine. Let engine reach full
speed.
3. Connect electrical loads one at a time.
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 include TVs, VCRs, and
other home electronic items.
OPERATION
Continued
WARNING: Always set the idle
speed before turning on the Auto-
Idle. If idle speed is not set, the
larger resistor on the control board
may become hot. Heat from the
resistor may damage the protective
coating on the control board.
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
(engine wants to “hunt” or speeds up and
slows down repeatedly).
1. Turn Auto-Idle switch OFF. Start en-
gine. Allow engine to warm up with
no load for five minutes.
2. Connect a volt meter to the 120-volt
duplex receptacle.
3. Fully push plunger into the solenoid
body (to manually engage solenoid)
and slowly bend solenoid bracket back
until the engine is running at the proper
idle speed. 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.
Solenoid
Mounting
Bracket
Bolt
Figure 17 - Solenoid Bracket Location
4. Turn Auto-Idle switch ON. Make sure
solenoid is engaged. When engaged, the
punger is pulled back into the solenoid.
5. 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 the throttle (refer to engines
operation in Engine Manual).