Lincoln Electric IM763 Commander 500 - Manual (Page 21)

WELDER CONTROLS (Items 9 through 13 )
8. WELD MODE & OUTPUT CONTROL
These two controls allow you to select between various
welding output slopes and adjust the desired welding
output. Refer to Table B.1 for a description of how
these two controls work.
Table B.1 Weld Mode and Output Control
Functions
1 If the WELD MODE switch is positioned between settings the pre-
vious setting is maintained until the switch is properly positioned on
a setting.
2 OUTPUT also controls O.C.V. while in the 5 sloped output ranges.
9. DIGITAL OUTPUT METERS
The digital output meters are located in the center of
the control panel between the two large control knobs.
The digital meters allow the output voltage (CV-WIRE
mode) or current (CC-STICK, PIPE and TIG modes) to
be set prior to welding using the OUTPUT control dial.
During welding, the meter display the actual output
voltage (VOLTS) and current (AMPS). A memory fea-
ture holds the display of both meters on the seven sec-
onds after welding is stopped. This allows the operator
to read the actual current and voltage just prior to when
welding was ceased. While the display is being held
the left-most decimal point in each display will be flash-
ing. The accuracy of the meters is + or - 3%.
M
Sloped Output for
Pipe Welding.
Touch Start TIG
Welding
Constant Current
Output for
Fabrication and
General Purpose
Welding
Constant Voltage
Output for MIG
Wire or CORED
WIRE Welding
5 Range
Settings
90, 150, 200,
350, 500 (Max.
current on each
setting)
1 Range setting
20-250 Amps
1 Range setting
30-575 Amps
1 Range setting
14 to 40 Volts
Provides a fine
adjustment of
welding current
from
Min (1) to Max
(10) within each
range
Provides Fine
Voltage
Adjustment
Weld Mode
1
Application
Output
2 M
B-4 OPERATION B-4
4. ENGINE TEMPERATURE GAUGE (K1639-2
Std., K1639-1 Opt.) AND LIGHT
The gauge displays the engine oil temperature. The
yellow temperature light remains off under normal
operating temperatures. If the light turns on, the engine
protection system will shut down the engine. Check for
restrictions at the engine cooling air inlets and outlets
(consult the engine Operator
’ s Manual). Check for
loose or disconnected leads at the temperature sender
located on the engine. Check engine cooling blower
belt. Also, check to be sure that the welder loads are
within the rating of the welder. The light will remain on
when the engine has been shut down due to an over-
temperature condition.
5. OIL PRESSURE GAUGE (K1639-2 Std.,
K1639-1 Opt.) AND LIGHT
The gauge displays the engine oil pressure when the
engine is running. The yellow oil pressure light remains
off with proper oil pressure. If the light turns on, the
engine protection system will stop the engine. Check
for proper oil level and add oil if necessary. Check for
loose or disconnected leads at the oil pressure sender
located on the engine. The light will go on and stay on
when the RUN-STOP switch is switched to the
“ Run ”
position with engine not running. NOTE: Ammeter light
may also be lit in an oil pressure fault condition.
6. ENGINE ALTERNATOR AMMETER (K1639-
2 Std., K1639-1 Opt.) AND LIGHT
The yellow engine alternator light is off when battery
charging system is functioning normally. If light turns
on, the engine protection system will shut down the
engine. Check the engine cooling blower belt. Also, the
alternator or the voltage regulator may not be operat-
ing correctly. The light may also come on due to a
faulty flashing circuit. The light will remain on when the
engine has been shut down due to a fault in the alter-
nator, regulator, or the cooling blower belt.
7. HOUR METER
The hour meter displays the total time that the engine
has been running. This meter is a useful indicator for
scheduling preventive maintenance.
COMMANDER 500