Arc Machines 307 - Manual (Page 13)

Arc Machines, Inc. Model 307 Orbital Tube Welder Training
Document No. 740096 Chapter 2. Page 4
Rev. A
Don’ts
RF and EMI Emissions
Arc Machines’ policy is to comply with the IEC and FCC regulation. Every
effort has been made to reduce RF emissions from our power supplies to
the absolute minimum.
9. Don’t attempt to move tube end into position using
the Weld Head as an alignment tool. USE PIPE STANDS,
CLAMPS, ALIGNMENT TOOLS, etc. to hold the tube or
pipe in position for welding. Tack welding of compo-
nents with a weld head or a manual torch prior to
orbital welding may be necessary in some applications.
10. Don’t add oil or grease to the weld head.
11. Don’t increase
GAS FLOW RATE
(CFH) beyond levels
specified for each particular weld head.
12. Don’t allow
TUNGSTEN OR OTHER METAL PARTICLES
to
enter the gear train of the weld heads. This will cause
serious (and expensive) damage.
13. Don’t switch the Model 307 Power Supply ON and
OFF rapidly with circuit breaker (CB-1). To do so may
result in loss of stored information or resetting of sys-
tem functions.