OM-928 Page 3
1-3. Additional Symbols For Installation, Operation, And Maintenance
HOT PARTS can cause severe burns.
D
Do not touch hot parts bare handed.
D
Allow cooling period before working on torch.
MOVING PARTS can cause injury.
D
Keep away from moving parts such as fans.
D
Keep all doors, panels, covers, and guards
closed and securely in place.
FLYING METAL can injure eyes.
D
Wear safety glasses with side shields or face
shield.
MAGNETIC FIELDS can affect pacemakers
.
D
Pacemaker wearers keep away.
D
Wearers should consult their doctor before go-
ing near plasma arc cutting operations.
OVERUSE can cause OVERHEATING.
D
Allow cooling period; follow rated duty cycle.
D
Reduce amperage (thickness) or reduce duty
cycle before starting to cut again.
EXPLODING HYDROGEN hazard.
D
When cutting aluminum underwater or with the
water touching the underside of the aluminum,
free hydrogen gas may collect under the work-
piece.
D
See your cutting engineer and water table instructions for help.
FALLING UNIT can cause injury.
D
Use lifting eye to lift unit only, NOT running
gear, gas cylinders, or any other accessories.
D
Use equipment of adequate capacity to lift unit.
D
If using lift forks to move unit, be sure forks are long enough to ex-
tend beyond opposite side of unit.
FIRE OR EXPLOSION hazard.
D
Do not locate unit on, over, or near combustible
surfaces.
D
Do not install unit near flammables.
D
Do not overload building wiring
−
be sure power supply system is
properly sized, rated, and protected to handle this unit.
STATIC (ESD) can damage PC boards.
D
Put on grounded wrist strap BEFORE handling
boards or parts.
D
Use proper static-proof bags and boxes to
store, move, or ship PC boards.
H.F. RADIATION can cause interference.
D
High frequency (H.F.) can interfere with radio
navigation, safety services, computers, and
communications equipment.
D
Have only qualified persons familiar with elec-
tronic equipment perform this installation.
D
The user is responsible for having a qualified electrician promptly
correct any interference problem resulting from the installation.
D
If notified by the FCC about interference, stop using the equipment
at once.
D
Have the installation regularly checked and maintained.
D
Keep high-frequency source doors and panels tightly shut, keep
spark gaps at correct setting, and use grounding and shielding to
minimize the possibility of interference.
ARC CUTTING can cause interference.
D
Electromagnetic energy can interfere with
sensitive electronic equipment such as
computers and computer-driven equipment
such as robots.
D
To reduce possible interference, keep cables as short as possible,
close together, and down low, such as on the floor.
D
Locate cutting operation 100 meters from any sensitive electronic
equipment.
D
Be sure this cutting power source is installed and grounded
according to this manual.
D
If interference still occurs, the user must take extra measures such
as moving the machine, using shielded cables, using line filters, or
shielding the work area.
1-4. California Proposition 65 Warnings
Y
Welding or cutting equipment produces fumes or gases which
contain chemicals known to the State of California to cause
birth defects and, in some cases, cancer. (California Health &
Safety Code Section 25249.5 et seq.)
Y
Battery posts, terminals and related accessories contain lead
and lead compounds, chemicals known to the State of
California to cause cancer and birth defects or other
reproductive harm. Wash hands after handling.
For Gasoline Engines:
Y
Engine exhaust contains chemicals known to the State of
California to cause cancer, birth defects, or other reproductive
harm.
For Diesel Engines:
Y
Diesel engine exhaust and some of its constituents are known
to the State of California to cause cancer, birth defects, and
other reproductive harm.
Summary of Contents for AirForce 250A
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Page 25: ...OM 928 Page 21 SECTION 7 ELECTRICAL DIAGRAM 213 899 A Figure 7 1 Circuit Diagram ...
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