Preparing To Weld; Preparinga Safe Welding Work Area; Preparing The Work Piece - Sears Craftsman 934.20105 Owner's Manual

PREPARING TO WELD Page .17
PREPARING TO WELD
PREPARING A SAFE WELDING
WORK AREA
bystanders in the welding area. It is a must that the
welding work area be cleared of all flammables
and that a type ABC chemical fire extinguisher is
always close at hand.
ELECTRIC SHOCK CAN KILL!
_]_JD] ARC RAYS CAN INJURE EYES AND
BURN SKIN!
READ The SAFETY INSTRUCTIONS! They wilt
tell you how to properly prepare for welding by:
1. Preparing a safe welding work area.
2. Providing the necessary personal eye and skin
protection for you and all bystanders in the weld-
ing area.
FIRE OR EXPLOSION CAN CAUSE
DEATH, INJURY, AND PROPERTY DAMAGEI
3. Providing adequate ventilation, or respiration
equipment if necessary, to protect you and any
bystanders in the welding area.
FUMES, GASSES, AND VAPORS CAN
CAUSE DISCOMFORT, ILLNESS, AND DEATH!
IMPROPER HANDLING AND MAIN-
TENANCE OF COMPRESSED GAS CYLIN-
DERS AND REGULATORS CAN RESULT IN
SERIOUS INJURY OR DEATHI
DO NOT PROCEED TO PREPARE TO WELD
until you read and understand each of the five
parts of the SAFETY INSTRUCTIONS section in
this manual. The SAFETY INSTRUCTIONS will
tell you how to REDUCE THE RISKS OF DEATH,
INJURY, ILLNESS, DISCOMFORT, AND PROP-
ERTY DAMAGE to you, the bystanders in the
welding area, and property in the vicinity of the
welding area from SHOCK HAZARDS, FLASH
HAZARDS, FIRE HAZARDS, FUME HAZARDS,
AND COMPRESSED GASSES AND EQUIP-
MENT HAZARDS.
An important factor in making a satisfactory weld is
preparation. This includes the study of the welding
process and equipment by the operator and then
practicing on scrap material before actual welding
jobs are attempted. An organized, well-lighted
work area should be available to provide comfort,
convenience, and safety to the operator and all
PREPARING THE WORK PIECE
Much of the success in producing a quality weld
can be attributed to the preparation of the weld-
joint area of the work piece.
1. Clean the weld-joint area of dirt, rust, scale, oil,
and/or paint. Failure to do so may result in a
porous, brittle weld.
,
Select a type of joint appropriate for your appli-
cation. The more popular types of welding joints
are illustrated in the TYPES OF JOINTS chart at
the end of this section.
NOTE: If you select a BUTT WELD JOINT, you
may have to prepare the edges of the metal to be
joined by grinding a bevel on the edges.
GRINDING METAL CAN INJURE EYES! To re-
duce the risk of eye injury, ALWAYS wear goggles
and inspect the grinder to verify that it is in good
condition before using.
During the welding process, the work pieces will
become hot and tend to expand causing the pieces
to shift from their initial position. If possible, it is
best if the work pieces can be securely clamped
(before welding) into the position desired after
welding is completed.