Miller 20 Series Owner's Manual - Page 21

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Miller 20 Series Owner's Manual

5-7. Motor Start/Burnback Control

Tools Needed:
Non-Conductive
1/4 in.
Notes
1
2
3
!
Turn Off wire feeder and
welding power source. Stop
engine on welding generator.
To change wire feed starting speed
proceed as follows:
Turn Off unit and welding power
source.
Remove wrapper.
1
Motor Board PC1
2
Motor Start Control
Potentiometer R73
Remove protective white rubber cap
before making adjustment. Adjust
potentiometer R73 using a small
nonconductive screwdriver. Rotate
potentiometer clockwise to increase
time it takes the motor to ramp up to
speed.
3
Burnback Potentiometer R42
Remove protective white rubber cap
before making adjustment. Adjust
potentiometer R42 using a small
nonconductive screwdriver. Rotate
potentiometer clockwise to increase
burnback time.
Reinstall wrapper.
Ref. 240357-D
OM-281138 Page 17