Tweco 35C Drag-Gun Plus - Manual (Page 7)

DRAG-GUN PLUS 35C
GENERAL INFORMATION 1-2 Manual 0-4750
• Provide a fire watch when working in an area where fire hazards
may exist.
• Hydrogen gas may be formed and trapped under aluminum
workpieces when they are cut underwater or while using a water
table. DO NOT cut aluminum alloys underwater or on a water
table unless the hydrogen gas can be eliminated or dissipated.
Trapped hydrogen gas that is ignited will cause an explosion.
NOISE
Noise can cause permanent hearing loss. Plasma arc processes can
cause noise levels to exceed safe limits. You must protect your ears from
loud noise to prevent permanent loss of hearing.
• To protect your hearing from loud noise, wear protective ear
plugs and/or ear muffs. Protect others in the workplace.
• Noise levels should be measured to be sure the decibels (sound)
do not exceed safe levels.
• For information on how to test for noise, see item 1 in Subsection
1.03, Publications, in this manual.
PLASMA ARC RAYS
Plasma Arc Rays can injure your eyes and burn your skin. The plasma
arc process produces very bright ultra violet and infra red light. These
arc rays will damage your eyes and burn your skin if you are not properly
protected.
• To protect your eyes, always wear a welding helmet or shield.
Also always wear safety glasses with side shields, goggles or
other protective eye wear.
• Wear welding gloves and suitable clothing to protect your skin
from the arc rays and sparks.
• Keep helmet and safety glasses in good condition. Replace lenses
when cracked, chipped or dirty.
• Protect others in the work area from the arc rays. Use protective
booths, screens or shields.
• Use the shade of lens as suggested in the following per ANSI/
ASC Z49.1:
Minimum Protective Suggested
Arc Current Shade No. Shade No.
Less Than 300* 8 9
300 - 400* 9 1 2
400 - 800* 1 0 1 4
*These values apply where the actual arc is clearly seen.
Experience has shown that lighter filters may be used when
the arc is hidden by the workpiece.
1.03 Publications
Refer to the following standards or their latest revisions for more infor-
mation:
1. OSHA, SAFETY AND HEALTH STANDARDS, 29CFR 1910, ob-
tainable from the Superintendent of Documents, U.S. Gov-
ernment Printing Office, Washington, D.C. 20402
2. ANSI Standard Z49.1, SAFETY IN WELDING AND CUTTING,
obtainable from the American Welding Society, 550 N.W.
LeJeune Rd, Miami, FL 33126
3. NIOSH, SAFETY AND HEALTH IN ARC WELDING AND GAS
WELDING AND CUTTING, obtainable from the Superinten-
dent of Documents, U.S. Government Printing Office, Wash-
ington, D.C. 20402
4. ANSI Standard Z87.1, SAFE PRACTICES FOR OCCUPATION
AND EDUCATIONAL EYE AND FACE PROTECTION, obtain-
able from American National Standards Institute, 1430 Broad-
way, New York, NY 10018
5. ANSI Standard Z41.1, STANDARD FOR MEN’S SAFETY-TOE
FOOTWEAR, obtainable from the American National Stan-
dards Institute, 1430 Broadway, New York, NY 10018
6. ANSI Standard Z49.2, FIRE PREVENTION IN THE USE OF
CUTTING AND WELDING PROCESSES, obtainable from
American National Standards Institute, 1430 Broadway, New
York, NY 10018
7. AWS Standard A6.0, WELDING AND CUTTING CONTAINERS
WHICH HAVE HELD COMBUSTIBLES, obtainable from Ameri-
can Welding Society, 550 N.W. LeJeune Rd, Miami, FL 33126
8. NFPA Standard 51, OXYGEN-FUEL GAS SYSTEMS FOR WELD-
ING, CUTTING AND ALLIED PROCESSES, obtainable from
the National Fire Protection Association, Batterymarch Park,
Quincy, MA 02269
9. NFPA Standard 70, NATIONAL ELECTRICAL CODE, obtain-
able from the National Fire Protection Association,
Batterymarch Park, Quincy, MA 02269
10. NFPA Standard 51B, CUTTING AND WELDING PROCESSES,
obtainable from the National Fire Protection Association,
Batterymarch Park, Quincy, MA 02269
11. CGA Pamphlet P-1, SAFE HANDLING OF COMPRESSED
GASES IN CYLINDERS, obtainable from the Compressed Gas
Association, 1235 Jefferson Davis Highway, Suite 501, Ar-
lington, VA 22202
12. CSA Standard W117.2, CODE FOR SAFETY IN WELDING AND
CUTTING, obtainable from the Canadian Standards Asso-
ciation, Standards Sales, 178 Rexdale Boulevard, Rexdale,
Ontario, Canada M9W 1R3
13. NWSA booklet, WELDING SAFETY BIBLIOGRAPHY obtain-
able from the National Welding Supply Association, 1900
Arch Street, Philadelphia, PA 19103
14. American Welding Society Standard AWSF4.1, RECOM-
MENDED SAFE PRACTICES FOR THE PREPARATION FOR
WELDING AND CUTTING OF CONTAINERS AND PIPING THAT
HAVE HELD HAZARDOUS SUBSTANCES, obtainable from the
American Welding Society, 550 N.W. LeJeune Rd, Miami, FL
33126
15. ANSI Standard Z88.2, PRACTICE FOR RESPIRATORY PRO-
TECTION, obtainable from American National Standards In-
stitute, 1430 Broadway, New York, NY 10018