INSTALLATION AND OPERATING INSTRUCTIONS
Section I. SERVICE UPON RECEIPT OF EQUIPMENT
d. Radio Interference.
2-1. inspecting and Servicing Equipment
(1) The Federal Communications Commis-
a. Check packing list for missing parts.
sion has established limits for the permissible ra-
b. Inspect for damaged parts, Check welding
diation from high frequency stabilized arc
machine for scratches, dents, or damaged housing.
welders.
(2) Tests indicate that the equipment covered
c. Inspect for broken or damaged controls and
by this manual can be reasonably expected to meet
switches.
the Federal Communications Commission's limits
d. Inspect for loose or missing screws, panels
if installed, maintained and operated in accord-
and fittings.
ance with the instructions included in this manual.
e. Perform daily preventive maintenance serv-
(3) In spite of all precautions taken by the
ices (para 3-5).
manufacturer, it is still possible for this equip-
ment to produce radio interference if the installa-
2-2. Installations of Separately Packed
tion is not carefully made. Therefore, the user
Components
must take all possible steps to install and operate
this equipment in accordance with all of these
There are no separately packed components
recommendations.
with the welding machine.
(4) Should this equipment cause radio in-
terference, it is the user's responsibility to take
immediate steps to eliminate such interference.
a. Ground and Electrode Cables Connections.
The manufacturer will assist the user by sup-
Refer to figure 2-1 and 2-2 and connect the
plying technical information.
ground and electrode cable.
Warning: Do not make or break any connec-
(5) The degree of interference caused by a
tion or perform any maintenance while the
high frequency stabilized welder installation will,
welding machine is in operation. The high voltage
to a large extent, depend upon local conditions.
created by this machine can cause death by elec-
One of the most important factors is the strength
trocution.
of the desired signal from the broadcast station as
Note. When installing welding machine allow at least
related to the strength of the unwanted signal
18 inches on all sides to insure adequate ventilation.
from the welder installation. The closer the radio
receiver is to the welder installation, the more
22 and connect suitable pipe and fittings to the
likely it is to pick up interference. Similarly the
welding machine. The solenoid valve controlling
closer the radio receiver is to the broadcasting sta-
the water flow is capable of handling pressures up
tion, the more likely it is to get interference-free
to 200 psi and will withstand temperatures up to
reception. The more powerful the broadcasting
150o F.
station, the less probability there is of interfer-
ence from a welder installation for any given dis-
c. Gas Connections. Refer to figure 2-1 and 2-2
tance. Thus, in a locality served by a number of
and connect suitable pipe and fittings to the
welding machine.
powerful nearby broadcasting stations, good re-
ception can be obtained from a radio receiver lo-
Warning: Check for leaks at all gas connec-
cated fairly near a welder installation but, in an
tions before operating the unit. A spark generated
area remote from broadcasting stations, a high
by this unit can cause an explosion.
