Hot Max Torches 175WFG - Manual (Page 16)

KDAR Company 15
Operation
Changing Drive Roll
The drive roll has two groves; the smaller grove is
for .023” - .025” welding wire and the larger grove is
for .030” - .035” welding wire. The welder is shipped
set up for the larger welding wire sizes.
To change the drive roll position:
1. Connect the unit to the appropriate power source.
2. Open the wire drive compartment door, release the
spring loaded tension arm (1) by flipping it to the
right and down and lift the idle arm (2).
3. Turn the power on.
4. Turn the feed control speed to the minimum set-
ting and momentarily pull the trigger to turn the
drive roll (4). Stop when the set screw (3) is facing
up.
When feeding the wire, the drive roll, the connector
block and gun contact tip are electrically charged
relative to work and ground and remain charged
for several seconds after the gun trigger is released.
Warning
5. Turn the power off.
6. Loosen the drive roll set screw (3) with the hex
wrench provided with the Hot Max 175WFG.
7. Remove the drive roll (4) turn it around and put it
back on the shaft.
8. Cut and straighten about 5” of the desired wire and
feed it through the wire inlet tube and into the out-
let tube. Line up the drive roll grove with the
welding wire and tighten with the hex wrench.
Make sure the set screw is on the flat part of the
shaft.
Shielding
Process Welding Wire Gas 16 ga 14 ga 12 ga 10 ga
MIG DC+ .035 Dia 4043
Aluminum Wire
100% Argon B-5.5 C-7 C-9 C-9
MIG DC+ .035 Dia 5356
Aluminum Wire
100% Argon B-5.5 C-8 C-9 C-10
MIG DC+ .030 Dia 308L
Stainless Steel
Wire
98% Argon/
2% Oxygen A-3 C-7 C-7 C-7
Voltage/Wire Speed
Aluminum & Stainless Steel Wire
The Hot Max 175WFG is capable of welding with
both .035” aluminum and .030” stainless steel
welding wire. See the table below for welder set-
tings for these wires. Aluminum wire is challeng-
ing to use with a MIG gun. Aluminum wire works
best with the Hot Max Model SPG spool gun
Table 2