Threading Welding Wire Through Gun; Coolant Guidelines - Miller Electric XR A Owner's Manual

4-15. Threading Welding Wire Through Gun

8
WOOD

4-16. Coolant Guidelines

CAUTION
INCORRECT COOLANT OR COOLANT CONTAINING STOP-LEAK ADDITIVES can corrode and/or plug
gun/feeder cooling passages.
Use only a mix of 50% distilled water and 50% high quality automotive antifreeze as proper coolant for this product.
Do not use antifreeze containing stop-leak additives.
Use of other coolant voids warranty.
1
50 − 50
Distilled
Water &
Antifreeze
2
Draining
OM-1581 Page 22
4
1
5
FULL
Filling
3
3
6
2
7
151 599-F / 151 666-E / Ref. 176 700-A / Ref. S-0651
Tighten Connections
4
1 Pressure Roll Assembly
Lift arm and open pressure roll
assembly.
2 Wire Conduit
Lay wire conduit out straight.
3 Jog Switch
Push Jog switch up to feed wire
through wire conduit.
4 Drive Roll
For wire sizes .035 in (0.9 mm) and
smaller use small groove, and
.047 in (1.2 mm) and 1/16 in
(1.6 mm) use large groove.
5 Contact Tip
Manually thread wire along drive
roll groove and out contact tip 2 in
(51 mm). Close pressure roll
assembly.
6 Tension Thumbnut
7 Pressure Adjustment Knob
8 Final Pressure Adjustment
Turn On feeder and check drive roll
pressure by feeding wire against a
piece of wood or concrete surface;
wire should feed steadily without
slipping. If necessary, adjust
pressure adjustment knob in gun.
Turn Off feeder and welding power
source. Reinstall gun cover. Close
and latch feeder door.
Follow these guidelines
decrease corrosion in gun/feeder
and cooling system:
1 Coolant
Mix distilled water and high quality
automotive antifreeze. Use anti-
freeze which does not contain stop-
leak additives.
Use of other coolant voids
warranty.
2 Coolant System Tank
3 Changing Coolant
Change coolant only if dirty.
Add coolant to keep level full.
4 Tighten Connections
Keep gun connections tight.
S-0760
to