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OM-880 Page 1
SECTION 1 – SAFETY PRECAUTIONS AND SIGNAL WORDS
1-1. GENERAL INFORMATION AND SAFETY
A. General
Information presented in this manual and on various la-
bels, tags, and plates on the unit pertains to equipment
design, installation, operation, maintenance, and
troubleshooting which should be read, understood, and
followed for the safe and effective use of this equipment.
The nameplate of this unit uses international symbols
for labeling the front panel controls. The symbols also
appear at the appropriate section in the text.
B. Safety
The installation, operation, maintenance, and trouble-
shooting of arc welding equipment requires practices
and procedures which ensure personal safety and the
safety of others. Therefore, this equipment is to be in-
stalled, operated, and maintained only by qualified per-
sons in accordance with this manual and all applicable
codes such as, but not limited to, those listed at the end
of Arc Welding Safety Precautions in the welding gener-
ator Owner’s Manual.
1-2. SAFETY ALERT SYMBOL AND SIGNAL
WORDS
The following safety alert symbol and signal words are
used throughout this manual to call attention to and
identify different levels of hazard and special instruc-
tions.
This safety alert symbol is used with the signal
words WARNING and CAUTION to call atten-
tion to the safety statements.
WARNING statements identify procedures or
practices which must be followed to avoid seri-
ous personal injury or loss of life.
CAUTION statements identify procedures or
practices which must be followed to avoid minor
personal injury or damage to this equipment.
IMPORTANT statements identify special instructions
necessary for the most efficient operation of this equip-
ment.
SECTION 2 – SPECIFICATIONS
Table 2-1. Specifications
Model
Rated Output
At 100%
Duty Cycle*
DC
Load
Voltage
Range
In CV
Mode
AC
Open-
Voltage
Range
In CC
Mode*
AC
Amperage
Max. Open-Circuit
Volts*
Weight
BIG 30
DIESEL
And
BIG 30A
DIESEL
BIG 40
DIESEL
And
BIG 40G
BIG 50
DIESEL
200 Amperes
At 28 Volts
300 Amperes
At 32 Volts
300 Amperes
At 32 Volts
10-35 40-70
45-325
Amperes
45-475
Amperes
50-495
Amperes
DC
CV Mode
AC
CC Mode
Net Ship
Range
In CC Mode*
40 70
42 lbs.
(19 kg)
47 lbs.
(21 kg)
*See Owner’s Manual For DC Specifications In CC Mode