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GENERATOR OPERATION
Be sure that any electrical equipment plugged into
the generator’s AC power receptacles can with-
stand a ±10% voltage and a ±4% frequency varia-
tion. Some electronic devices cannot be powered
by the BULLDOG™ 140. Refer to Table A.2, ELEC-
TRICAL DEVICE USE WITH THE BULLDOG™ 140,
in the INSTALLATION section of this manual.
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GENERAL INFORMATION
The BULLDOG™ 140 generator is rated at 4000 con-
tinuous watts (5500 surge watts). It provides both
120 volt and 240 volt power. You can draw up to 20
amps from either side of the 120 volt duplex recepta-
cle, but no more than 33.3 amps from both sides at
once. Up to 16.7 amps can be drawn from the single
240 volt receptacle.
Electrical loads in watts are approximately calculated
by multiplying the voltage rating of the load by the
number of amps it draws. (This information is given
on the load device nameplate.) For example, a
device rated 120 volts, 2 amps will need 240 watts of
power (120 x 2 = 240).
You can use Table B.1, GENERATOR POWER APPLI-
CATIONS, to determine the wattage requirements of
the most common types of loads you can power with
the BULLDOG™ 140. Be sure to read the notes at
the bottom of the table.
TO USE THE BULLDOG™ 140 AS AN AUXILIARY
POWER SUPPLY:
1. Start the gasoline engine. See ENGINE OPERA-
TION in this section of the manual and the engine
owner’s manual.
2. Set the current control dial on the output control
panel to “GENERATOR”. See Figure B.1.
3. Plug the load(s) into the appropriate 120 volt or
240 volt power receptacle.
NOTE: During welding, the maximum generator out-
put for auxiliary loads is 100 watts.
NOTE: You can supply multiple loads as long as the
total load does not exceed 5,500 surge watts
or 4,000 Continuous watts. Be sure to start
the largest loads first.
CAUTION
B-5
OPERATION
B-5
STOPPING THE ENGINE
1. Remove all welding and generator power loads
and let the engine cool by running it for several
minutes.
2. Stop the engine by placing the “ON/OFF” switch
in the “OFF”(O) position.
3. Close the fuel shutoff valve.
Close the fuel valve when the machine is trans-
ported to prevent fuel leakage from the carbure-
tor.
For long periods of storage, turn off the fuel shut-
off valve and let the engine run until there is no
more fuel in the line. Use a fuel additive such as
Sta-Bil to minimize fuel gum deposits.
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RUNNING THE ENGINE
The engine is set at the factory to run at high idle
speed when not under load. You should not adjust
this setting yourself.
BREAK-IN PERIOD
The engine will use a greater amount of oil during its
“break-in” period. Check the oil frequently during
break-in. For more details, see the MAINTENANCE
section in the engine owner’s manual.
During break-in, the unit should be subjected to
moderate loads. Before stopping the engine,
remove all loads and allow the engine to cool sev-
eral minutes.
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LOW OIL SENSING
This engine has a built in sensor which responds to
low oil level (not pressure). When activated, the syst-
tem will shut the engine down. The engine will not
restart untill sufficient oil is added. Check oil level fre-
quently and add oil as required to the full mark on the
dipstick. (DO NOT OVERFILL)
BULLDOG™ 140
CAUTION
WARNING