GENERAL INFORMATION N7500
Manual 89250890 1-3 GENERAL INFORMATION
3. Remove all flammables within 35 ft. (10.7 m) of the welding
arc. If this is not possible, tightly cover them with approved
covers.
4. Be alert that welding sparks and hot materials from weld-
ing can easily go through small cracks and openings to
adjacent areas.
5. Watch for fire, and keep a fire extinguisher nearby.
6. Be aware that welding on a ceiling, floor, bulkhead, or
partition can cause fire on the hidden side.
7. Do not weld on closed containers such as tanks or drums.
8. Connect work cable to the work as close to the welding
area as practical to prevent welding current from traveling
long, possibly unknown paths and causing electric shock
and fire hazards.
9. Do not use welder to thaw frozen pipes.
10. Remove stick electrode from holder or cut off welding wire
at contact tip when not in use.
WARNING
FLYING SPARKS AND HOT METAL can cause injury.
Chipping and grinding cause flying metal. As welds
cool, they can throw off slag.
1. Wear approved face shield or safety goggles. Side shields
recommended.
2. Wear proper body protection to protect skin.
WARNING
MOVING PARTS can cause injury.
Moving parts, such as fans, rotors, and belts can cut fingers
and hands and catch loose clothing.
1. Keep all doors, panels, covers, and guards closed and
securely in place.
2. Stop engine before installing or connecting unit.
3. Have only qualified people remove guards or covers for
maintenance and troubleshooting as necessary.
4. To prevent accidental starting during servicing, disconnect
negative (-) battery cable from battery.
5. Keep hands, hair, loose clothing, and tools away from
moving parts.
6. Reinstall panels or guards and close doors when servicing
is finished and before starting engine.
NOTE
The following is a quotation from the General Conclusions
Section of the U.S. Congress, Office of Technology Assessment,
Biological Effects of Power Frequency Electric & Magnetic
Fields - Background Paper, OTA-BP-E-63 (Washington, DC:
U.S. Government Printing Office, May 1989): “...there is now a
very large volume of scientific findings based on experiments
at the cellular level and from studies with animals and people
which clearly establish that low frequency magnetic fields
interact with, and produce changes in, biological systems.
While most of this work is of very high quality, the results are
complex. Current scientific understanding does not yet allow
us to interpret the evidence in a single coherent framework.
Even more frustrating, it does not yet allow us to draw definite
conclusions about questions of possible risk or to offer clear
science-based advice on strategies to minimize or avoid
potential risks.”
To reduce magnetic fields in the workplace, use the following
procedures.
1. Keep cables close together by twisting or taping them.
2. Arrange cables to one side and away from the opera-
tor.
3. Do not coil or drape cable around the body.
4. Keep welding power source and cables as far away
from body as practical.
ABOUT PACEMAKERS:
The above procedures are among those also
normally recommended for pacemaker wearers.
Consult your doctor for complete information.