OM-227398 Page 17
SECTION 6 − OPERATION
6-1.
Gun Controls
1
Trigger
Press trigger to energize welding
power source contactor (if
applicable), start shielding gas flow,
and begin wire feed.
Switches inside the wire feeder can
be set to provide timed shielding gas
preflow and postflow when trigger is
pressed and released. When this
feature is turned Off, no preflow or
postflow is provided for the welding
operation.
2
Gun Wire Speed Control
Use control to fine adjust wire feed
speed set on XR-Control. Gun Wire
Speed Control has 3-3/4 turns of ad-
justment from minimum to maximum.
Rotate control clockwise to increase
wire speed and counterclockwise to
decrease wire speed.
.
Speed control can be rotated
more than 3-3/4 turns in both di-
rections without being damaged.
1
2
Ref. 804545-B
6-2.
Gun Pressure Roll Tension Setting
.
Aluminum series specific -
Pressure roll tension setting
ensures smooth wire feeding
action.
.
Gun Pressure Roll Tension is
factory set to 4XXX.
1
Pressure Roll Adjustment
Screw
Wire tension should be set to 4XXX
for 4000 series aluminum wire.
Rotate Pressure Roll Adjustment
Screw fully counterclockwise until
indicator line on adjustment knob
lines up with indicator line on handle
in the 4XXX position.
Wire tension should be set to 5XXX
for 5000 series aluminum and stain-
less wire.
Rotate Pressure Roll Adjustment
Screw fully clockwise until indicator
line on adjustment knob lines up
with indicator line on handle in the
5XXX position.
1
Ref. 804545-B
Tools Needed:
Summary of Contents for XR-AlumaPro Series
Page 38: ...Notes...
