Lincoln Electric WELDMARK 135 PLUS IM789 - Manual (Page 11)

A-4 A-4 INSTALLATION
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 welder is wired for positive polarity. This
is the appropriate configuration for the Gas Metal
Arc Welding (GMAW) process. To complete instal-
lation, use the provided wing nut to connect the
work cable
’ s terminal lug to the negative ( – ) output
terminal (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, connect the short cable
attached to the connector block (1) to the negative
(
– ) output terminal (2) and the work cable (3) to the
positive (+) terminal (4).
FIGURE A.4
3. Insert the connector on the gun conductor cable
through the Gun Cable Access Hole (2) in the
WELDMARK 135 PLUS case front. Make sure the
connector is all the way in the metal connector
block to obtain proper gas flow. Rotate the connec-
tor so control leads are on the underside and tight-
en the Thumbscrew (8) in the connector block.
4. Connect the gun trigger control lead terminals to
the two insulated 1/4" (6,4 mm) tab connector
bushings located above the
“ Gun Trigger
Connection ” decal in the wire feed section (4).
Either lead can go to either connector. Form the
leads so that they are as close as possible to the
inside panel.
If the gun trigger switch being used is other than
that supplied with the welder, the switch must be a
normally open, momentary switch. The terminals
of the switch must be insulated from the welding
circuit. Malfunction of the welder will result if this
switch shorts to the welding output circuit or is
common to any electrical circuit other than the
welder trigger circuit.
GAS CONNECTION
Refer to Figure A.5
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 welder, refer to
the ACCESSORIES section.
CYLINDER may explode if dam-
aged. Keep cylinder upright and
chained to support
• Keep cylinder away from areas
where it may be damaged.
• Never lift welder with cylinder
attached.
• Never allow welding electrode to
touch cylinder.
• Keep cylinder away from welding
or other live electrical circuits.
GUN INSTALLATION
As shipped from the factory, the welding gun is ready
to feed .023 - .025
” (0,6 mm) wire. If .030-.035 (0.8-
0.9 mm) wire is to be used, change the contact tip to
the appropriate size. Refer to the MAINTENANCE
section for contact tip installation details.
Note: If .035 Innershield Flux cored wire is to be used,
see the accessories section for the Innershield weld-
ing kit.
Connecting Gun Cable to the WELDMARK
135 PLUS
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 under the Wire Feed
Gearbox (6) and through the Cable Hanger (7) on
the inner panel.
CAUTION
WARNING
1
2
3 4
WELDMARK 135 PLUS