Northen MIG 135 Operator's Manual - Installation
Operating Instructions and Parts Manual
Northern Industrial Welder
8
MIG 135
MIG WELDER
Installation
1. Power requirement
AC single phase 115v (110-120V),
60HZ with a 20amp time delayed fuse
or circuit breaker is required. DO
NOT OPERATE THIS UNIT if the
ACTUAL power source voltage is less
than 105 volts ac or greater than 132
volts ac.
• High voltage danger from power
source! Consult a qualified
electrician for proper installation of
receptacle. This welder must be
grounded while in use to protect
the operator from electrical shock.
• Do not remove grounding prong
or alter the plug in any way. Do
not use any adapters between the
welder’s power cord and the power
source receptacle. Make sure the
POWER switch is OFF when
connecting your welder’s power
cord to a properly grounded
230Vac, 60Hz, single phase, 50
amp power source.
2. Extension cord
It is strongly recommended that an
extension cord should not be used
because of the voltage drop it
produces. This drop in voltage can
affect the performance of the welder.
If you need to use an extension cord
it must be a #12 gauge cord or larger.
Do not use an extension cord over 25
ft. in length.
3. Install the wire roller
Before installing any welding wire
into the unit, the proper sized groove
must be placed into position on the
wire drive mechanism. Adjust the
drive roller according to the following
steps, see following picture of the
wire feed mechanism:
3.1. Open the door to the welder drive
compartment.
3.2. (see # 1) Loosen the tension
adjusting wing nut and lifting the
Drive Tension Adjustor away from the
Drive Tension Arm (see 2). Pull the
drive tension arm away from the wire
roller (see 3). See following images
for reference
3.3. If there is wire already installed in
the welder, roll it back onto the wire
spool by hand-turning the spool
counterclockwise. Be careful not to
allow the wire to come out of the rear
end of the inlet guide tube without
holding onto it or it will unspool itself.
Put the end of the wire into the hole
Drive
tension
adjustor
Inlet Guide
Tube
Wire
Roller
Drive
Tension
Arm