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A-4
Work Cable Installation
Refer to Figure A.2.
1. Open the wire feed section door on the right side of
the SP-175T.
2. Pass the end of the work cable that has the termi-
nal lug with the smaller hole through the Work
Cable Access Hole (1) in the case front.
3. Route the cable under and around the back of the
Wire Feed Gearbox (6).
4. For GMAW Only: Refer to Figure A.2. As deliv-
ered, the machine is connected for positive elec-
trode polarity. This is the appropriate configuration
for the GMAW (MIG) process. To complete installa-
tion, use the provided wing nut to connect the work
cable's terminal lug to the negative (–) output ter-
minal (5) located above the Wire Feed Gearbox
(6). Make sure that both wing nuts are tight.
5. For Innershield Only: Refer to Figure A.4. To wire
for negative polarity (required for the Innershield
process), connect the short cable attached to the
connector block (1) to the negative (–) output termi-
nal (2) and the work cable (3) to the positive (+) ter-
minal (4).
FIGURE A.4
4
2
1
GUN INSTALLATION
As shipped from the factory, the SP-175T gun is ready
to feed .023" – .025" solid wire. If .030"-.035" (0.8 -
.09mm) solid wire is to be used, change the contact tip
to the appropriate size. If .035" Flux-cored wire is to be
used, change the contact tip and nozzle to the
appropiate type and orient the drive roll to the appro-
priate groove size.
INSTALLATION
NOTE: If .035" or .045" (0.9 mm or 1.2 mm)
Innershield flux-cored wire is to be used, the appropri-
ate Innershield kit is required. (see ACCESSORIES
section)
Connecting Gun Cable to the SP-175T
1. Refer to Figure A.2. Unplug the machine or turn
power switch to the OFF "O" position.
2. Pass the insulated terminals of the gun trigger con-
trol leads, one at a time, through the Gun Cable
and Control Lead Access Slot (2) in the case front.
The leads are to be routed up the inside of the
case front, behind the gas line.
3. Insert the connector on the gun conductor cable
through the Gun Cable Access Hole (2) in the
SP-175T case front. Make sure the connector is all
the way in the brass connector block to obtain
proper gas flow. If the gun connector will not fully
insert, unscrew the thumbscrew on the connector
block a few turns. Rotate the connector so control
leads are on the underside and tighten the
Thumbscrew on the connector block.
4. Connect the gun trigger control lead terminals to
the two insulated 1/4" (6,4 mm) tab terminal con-
nector bushings located above the "Gun Trigger
Connection" decal in the wire feed section (4).
Either lead can go to either connector.
3
If the gun trigger switch being used is other than
that supplied, the switch must be a normally open,
momentary switch. The terminals of the switch
must be insulated from the welding circuit.
Malfunction of the SP-175T may result if this
switch shorts to the SP-175T welding output cir-
cuit or is common to any electrical circuit other
than the SP-175T trigger circuit.
GAS CONNECTION
When using the GMAW process, a cylinder of shield-
ing gas, must be obtained. For more information about
selecting gas cylinders for use with the SP-175T, refer
to the ACCESSORIES section.
SP-175T
CAUTION
A-4
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