Tweco N7500 - Manual (Page 11)

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
welding can easily go through small cracks and open-
ings 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, discon-
nect 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 ser-
vicing 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
operator.
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.