Master Lock MGH3000G - Manual (Page 14)

14 106813
PORTABLE GASOLINE GENERATORS
R
MAINTENANCE
AND REPAIRS
WARNING: Only a qualified
electrical service person should
service and repair the alternator
on this generator. Use only fac-
tory approved replacement parts.
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.
IMPORTANT: (All models except HWI3000,
MGH3000, MGH3000PR, MGH6500IE, and
MGH10000A) Keep full power selector switch
in the 120 VOLT ONLY position if only pow-
ering 120V items. Only move switch to 120/
240 VOLT position if powering 240V items.
1. Check items to be powered. Their
nameplate lists their wattage ratings.
Note: The wattage ratings for some elec-
trical motors are misleading. They may
require up to three-times their rated watt-
age to start. You must figure total electri-
cal load wattage. Make sure total wattage
of all electrical loads does not exceed rated
wattage of generator. See Determining
Electrical Load For Generator, page 10.
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 larg-
est 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.
STOPPING ENGINE
IMPORTANT: The engine speed is preset.
The throttle is locked in preset position. Do
not adjust throttle.
Follow the steps below to stop engine.
1. Remove all electrical loads from gen-
erator (see Disconnecting Electrical
Loads). Remove electrical loads one at
a time.
2. Let engine run for two or three min-
utes after removing electrical loads.
This lets engine cool slightly.
3. Turn engine switch to the OFF posi-
tion (see Figure 29).
4. Turn fuel valve lever off except on
Model MGH3000PR. Do this by mov-
ing valve lever fully to the left (see Fig-
ure 30).
HONDA
OFF
ON
START
ENGINE SW
CIRCUIT
BREAKER
ON/push OFF
Models
MGH5000DIE,
MGH6500IE, and
MGH10000A
Figure 29 - Engine Switch In OFF Position
Figure 30 - Fuel Valve Lever Off (Model
MGH6500IE Shown)
Fuel Valve Lever
(Off Position)
OFF
ENGINE SW
ON
Models HWI3000,
MGH3000G, MGH3000,
MGH4000C, MGH4000CI,
MGH5000D, MGH5000DI,
MGH6000D and
MGH6000DI
OPERATION
Continued
Model
MGH3000PR
IMPORTANT: Keep generator level when
servicing. Never turn generator upside down
or stand it on end to service.
Note: We supply the engine owner’s manual
with generator. Refer to that manual for
questions concerning engine maintenance
and repairs.
Non-engine parts require little maintenance.
Keep generator clean. Use a damp cloth to
clean outside surfaces. Never use water to
clean generator. Water can cause damage to
internal parts. Use vacuum to clean air inlet
and outlet louvers of alternator.
CAUTION: Shut off generator
before performing maintenance.
CAUTION: The engine speed
is preset. The throttle is locked in
preset position. Do not adjust
throttle. Preset position lets en-
gine run at 3600 RPM under load.
The engine must maintain 3600
RPM for generator to create cor-
rect voltage. Running engine at
lower speeds will damage gen-
erator and powered items.