Lincoln Electric IM794 SP-170T - Manual (Page 15)

SP-170T
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B-2 B-2 OPERATION
● Reversible, dual groove drive roll, shipped ready
to feed .023"/.025" (0.6 mm) diameter wire. The
drive roll is easily reversed to feed .030" (0.8 mm)
diameter solid wire and .035" (0.9 mm) flux-cored
diameter wire. Optional drive roll included in .045"
(1.2 mm) Innershield
® welding kit must be installed
to feed .045" (1.2 mm) flux-cored wire.
● No external shielding gas is required when used
with Lincoln .035
” (0,9 mm) Innershield NR ® -211-
MP electrode.
● Spindle accommodates both 8 in. (200 mm) diame-
ter and 4 in. (100 mm) diameter spools of wire.
WELDING CAPABILITY
The SP-170T is rated at 130 amps, 20 volts, at 20%
duty cycle on a ten minute basis. It is capable of high-
er output currents at lower duty cycles. .
LIMITATIONS
Arc Gouging cannot be performed with the SP-170T.
The SP-170T is not recommended for pipe thawing or
TIG welding.
CONTROLS AND SETTINGS
See Figure B.1a.
1. Power ON/OFF Switch —
When the power is on the
fan motor will run and air will
be exhausted out the louvers
in the front of the machine.
The welding output and wire
feeder remain off until the
gun trigger is pressed.
2. Voltage Control — A 5-posi-
tion tap selector switch gives
full range adjustment of
power source output voltage.
Do not switch while welding.
3. Wire Speed Control —
Controls the wire feed speed
from 50
– 400 in/min (1.2 –
10.2 m/min). The control can
be preset on the dial to the
setting specified on the SP-
170T Application Chart
located on the inside of the
wire feed section door
OFF
ON
ARC VOLTS
WIRE SPEED
See Figure B.1b.
4. Circuit Breaker – Protects machine from damage if
maximum output is exceeded. Button will extend
out when tripped (Manual reset).
5. Gun Trigger - Activates welding output, wire feed,
and gas solenoid operation. Releasing the trigger
deactivates welding and simultaneously activates
the
“ burnback ” function so that the welding wire
does not stick in the weld puddle.
SP-170 T
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FIGURE B.1a
FIGURE B.1b