Polarity Control And Cable Sizes - Lincoln Electric PERKINS 350-SA Operator's Manual

3. Proper placement of the equipment on the
undercarriage to ensure stability side to side and
front to back when being moved and when
standing by itself while being operated or serviced.
4. Typical conditions of use, i.e. travel speed,
roughness of surface on which the trailer will be
operated, environmental conditions & likely
maintenance.
5. Conformance with federal, state and local laws. (1)
(1) Consult applicable federal, state and local laws regarding specific
requirements for use on public highways.
Polarity Control & Cable Sizes
With the engine off, connect the electrode and work
cables of the appropriate size (see the following table)
to the studs located on the fuel tank mounting rail.
For Positive polarity, connect the electrode cable to
the terminal marked "Positive".
polarity, connect the electrode cable to the "Negative"
stud. These connections should be checked
periodically and tightened if necessary.
When welding at a considerable distance from the
welder, be sure you use ample size welding cables.
Recommended Copper Cable Sizes
250 Amps
@ 60% Duty Cycle
Up to 200 ft 1
200-250 ft
1/0
For Negative
350 Amps
@ 25% Duty Cycle
2/0
3/0
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