Operation – Lincoln Electric IM662 SAE400 User Manual
Page 16

B-4
OPERATION
B-4
How to Set the Controls
Assume you want a normal soft arc and about 135
amps, using a 5/32” (4.0 mm) electrode:
1. Set the “Job Selector” at the center of the black
range.
2. Set the “Current Control” to read 135 amps on the
black dial.
3. Start to weld.
4. If you want a little more current, turn the “Job
Selector” up (counterclockwise) to increase cur-
rent. If you want a little less current, turn the “Job
Selector” down (clockwise) to decrease current.
5. If dialing the desired current with the “Job
Selector” moves the setting outside the black
range causing undesirable arc characteristics, turn
the “Job Selector” back to the center of the black
range. Then turn the “Current Control” up or down
a little as needed. Readjust the “Job Selector” for
the exact characteristics and current desired.
REMOTE CONTROL (K1278-2 ONLY)
A receptacle and “Local/Remote” control switch on the
front control panel and a remote control box with 25 ft.
(7.6 m) of cord for adjusting the OCV at the welding
site are standard. Putting the switch in the “REMOTE”
position allows fine current control at the remote con-
trol box while placing the switch in the “LOCAL” position
allows fine current control at the “Job Selector” on the
machine. When using the optional field installed CV
adapter (K385-1) the “Local/Remote” switch is only
active in the “VV” mode.
AUXILIARY POWER CONTROLS
115 VAC Receptacle
One 20 amp, 115 VAC duplex receptacle provides 115
VAC for auxiliary power. A total of 26 amps can be
drawn from this receptacle.
230 VAC Receptacle
One 15 amp, 230 VAC duplex receptacle provides 230
VAC for auxiliary power. A total of 13 amps can be
drawn from this receptacle.
Circuit Breakers
The circuit breakers provide separate overload current
protection for each half of the 115 V duplex receptacle.
The circuit breakers provide overload current protec-
tion in both current carrying wires of the 230 V duplex
receptacle.
Ground Stud
Provides a connection point for connecting the
machine to earth ground. For the safest grounding pro-
cedure refer to “Machine Grounding” in the INSTALLA-
TION section of this manual.
SAE400