Lincoln Electric IM751 POWER-ARC 4000 - Manual (Page 17)

B-2 OPERATION B-2
LIMITATIONS
• The POWER-ARC 4000 is not recommended for
any processes besides those that are normally per-
formed using stick welding (SMAW) procedures.
• The POWER-ARC 4000 is not recommended for
pipe thawing.
• During welding, generator power is limited to 100
watts, and output voltages can drop from 120 to 80
volts and 240 to 160 volts. Therefore, DO NOT
OPERATE ANY SENSITIVE ELECTRICAL EQUIP-
MENT WHILE YOU ARE WELDING.
CONTROLS AND SETTINGS
All generator/welder controls are located on the
Output Control Panel. Gasoline engine controls are
mounted on the engine. See Figures B.1 and B.2 and
the explanations that follow.
GENERATOR/WELDER CONTROLS
See Figure B.1 for the location of the following fea-
tures:
1. CURRENT CONTROL DIAL: Adjusts continuous
current output. The amperages on the dial corre-
spond to the average amperages needed for spe-
cific Lincoln welder rods.
2. ELECTRODE SELECTION GUIDE: Provides rec-
ommended electrode type, size, and welder out-
put setting based on the thickness of the work.
3. WELD OUTPUT TERMINAL (TO ELECTRODE
HOLDER) WITH 1/2 - 13 FLANGE NUT: Provides
the connection point for either the electrode hold-
er or the work cable. (Because the POWER-ARC
4000 is an AC output machine, either output ter-
minal can be used for either cable.)
POWER-ARC 4000
POWER ARC 4000 POWER ARC 4000
ELECTRODE SELECTION GUIDE ELECTRODE SELECTION GUIDE
80 80
90 90
100 100
70 70
AMPS AMPS
AMPS AMPS
AMPS AMPS AMPS AMPS
WARNING
AMPS AMPS
125 125
GENERATOR GENERATOR
8
7
6
5
3
1
2
4
9
FIGURE B.1 – OUTPUT PANEL CONTROLS
1. CURRENT CONTROL DIAL
2. ELECTRODE SELECTION GUIDE
3. WELD OUTPUT TERMINAL (TO ELECTRODE HOLDER) WITH 1/2 - 13 FLANGE NUT
4. WELD OUTPUT TERMINAL (TO WORK) WITH 1/2 - 13 FLANGE NUT
5. GROUND STUD
6. 20 AMP CIRCUIT BREAKERS (2)
7. 20 AMP, 240 VOLT RECEPTACLE
8. 20 AMP, 120 VOLT DUPLEX RECEPTACLE
9. TACHOMETER / HOURMETER (CODE 10930 ONLY)