Miller Electric XR A - Manual (Page 31)

OM-1581 Page 27
5-10. Flowmeter (Optional)
CAUTION
Wire feeding system is designed for maximum of 50 psi (345 kPa) gas pressure.
•
Be sure that regulator/flowmeter has preset conditions of no more than 50 psi (345 kPa) gas pressure.
1 Flowmeter
2 Valve
Use flowmeter to control shielding
gas flow at the feeder. The scale on
the flowmeter is in cubic feet per
hour (CFH). Read gas flow at the
widest part of the float in the meter.
Rotate valve to change gas flow as
necessary.
A regulator is still required on
shielding gas supply with this
option.
S-0659
10 10
20 20
30 30
40 40
50 50
60
60
CFH
Ar CO 2
1
2
5-11. Internal Controls
LOW TORQUE
HIGH TORQUE
BRAKE
RELEASE
Open left side door.
1
Fuse F1
See Section 6-11.
2
Circuit Breaker CB1
See Section 6-11.
3
Motor Torque Switch
Use switch to select the force used
to push wire. The up position is for
low force, or torque. The down
position is for high force, or torque.
If welding wire appears to be
kinked, nicked, or damaged, place
switch in low torque position.
4
Brake Release Button
Whenever power is On and the
welding power source is energized,
button may be pressed to release
spool brake so wire spool can turn
freely.
Close and latch door.
Ref. 151 779 / Ref. S-120 552-A
1
2
3
4