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OPERATION
B-8
DIESEL ENGINE CONTROLS
(CLASSIC IIID)
See Figure B.4 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." In "HIGH," the
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: Has
two positions, ON and OFF. When the switch is in
the ON position, the diesel engine can be started
by pressing the START pushbutton. When the
switch is placed in the OFF position, the engine
stops.
3. RESET BUTTON: Resets engine protection circuit.
Press this button before starting the diesel engine.
4. START AND GLOW PLUG PUSHBUTTONS:
Press the START button to start the diesel 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. OIL PRESSURE GAUGE: Indicates engine oil
pressure. If no oil pressure shows on the gauge
within 30 seconds after startup, the engine should
be stopped by placing the IGNITION switch in the
OFF position.
7. AMMETER: Shows whether the charging circuit
is performing its job of charging the battery when
the engine is running. The meter will register
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.
8. TEMPERATURE GAUGE: Indicates temperature
of engine coolant.
B-8
Classic III and IIID
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FIGURE B.4 – DIESEL ENGINE CONTROLS
IDLER IGNITION
115 VOLTAC
230 VOLTAC
REMOTE
CONTROL
RESET
START
3
4
1
2
6
7
8
90
MIN
220
MAX
130-80
190-120
CURRENT RANGE
SELECTION
FINE CURRENT
ADJUSTMENT
10
20
30
40
50
60
70
80
90
100
240-160
5
1. IDLER CONTROL TOGGLE
SWITCH
2. IGNITION TOGGLE SWITCH
3. RESET BUTTON
4. START PUSHBUTTONS
5. ENGINE HOUR METER
6. OIL PRESSURE GAUGE
7. AMMETER
8. TEMPERATURE GAUGE