Gasoline Engine Controls - Lincoln Electric CLASSIC III SVM 137-A Service Manual

B-7
1. IDLER CONTROL TOGGLE
SWITCH
2. IGNITION TOGGLE SWITCH
3. CHOKE
4. START PUSHBUTTON
5. ENGINE HOUR METER
6. AMMETER

GASOLINE ENGINE CONTROLS

(CLASSIC III)
See Figure B.3 for the location of the following features:
1. IDLER CONTROL TOGGLE SWITCH: Adjusts the
running speed of the engine. The switch has two
positions, "HIGH" and "AUTO."
engine runs continuously at high idle. In "AUTO,"
the idler control works as follows:
Welding: The engine accelerates to high speed
when the electrode touches the work and strikes a
welding arc. The engine returns to low idle approx-
imately 15 seconds after welding stops, as long as
no auxiliary power is being drawn.
Auxiliary Power: The engine accelerates to high
speed when power is drawn at the receptacles for
lights or tools. The engine returns to low idle
approximately 15 seconds after demand for
auxiliary power stops.
2. IGNITION CONTROL TOGGLE SWITCH:
two positions, ON and OFF. When the switch is in
the ON position, the engine can be started by
pressing the START pushbutton. When the switch
is placed in the OFF position, the engine stops.
3. CHOKE: Provides a richer air/fuel mixture for cold
engine starting conditions. See the topic Engine
Operation for details on setting the choke.
OPERATION
FIGURE B.3 – GASOLINE ENGINE CONTROLS
190-120
240-160
220
MAX
IDLER
230 VOLT AC
1
6
In "HIGH," the
Has
Classic III and IIID
CURRENT RANGE FINE CURRENT
SELECTION ADJUSTMENT
50
60
130-80
70
40
80
30
90
MIN
90
20
10
100
OIL
IGNITION START
PRESSURE
REMOTE
115 VOLT AC
CONTROL
2 3
4. START PUSHBUTTON: Press the START button
to start the engine. The IGNITION switch must be
in the ON position.
NOTE: If you press the START pushbutton when
the engine is running, you may damage the engine
flywheel gear or starter motor.
5. ENGINE HOUR METER: Records engine running
time. Use the meter to determine when to
perform required maintenance.
6. AMMETER: Shows whether the charging circuit
is performing its job of charging the battery when
the engine is running.
discharge during starting, but then the needle
should return to a position slightly toward positive
during running. The needle will hold position in the
center when the engine stops.
B-7
5
4
The meter will register