Lincoln Electric AUTODRIVE 4R220 Operator's Manual page 14

A-7
PRESSURE ARM ADJUSTMENT
WARNING
ELECTRIC SHOCK can kill.
• Turn the input power OFF at the weld-
ing power source before installation or
changing drive rolls and/or guides.
• Do not touch electrically live parts.
• When inching with the gun trigger, electrode
and drive mechanism are "hot" to work and
ground and could remain energized several sec-
onds after the gun trigger is released.
• Do not operate with covers, panels or guards
removed or open.
• Only qualified personnel should perform mainte-
nance work.
------------------------------------------------------------------------
The pressure arm controls the amount of force the
drive rolls exert on the wire. Proper adjustment of the
pressure arm gives the best welding performance.
Set the pressure arm as follows:
(See Figure A.3)
Aluminum wires
Cored wires
Steel, Stainless wires
FIGURE A.3
LOADING WIRE
WARNING
• Keep hands, hair, clothing and tools
away from rotating equipment.
• Do not wear gloves when threading wire
or changing wire spool.
• Only qualified personnel should install,
use or service this equipment.
------------------------------------------------------------------------
INSTALLATION
between 1 and 3
between 3 and 4
between 4 and 6
AutoDrive™ 4R220
CONDUIT INSTALLATION
The K1546-xx series of conduits are compatible with
K515-xx, K565-xx, Wire Wizard and Electron Beam
Technologies conduits.
To install conduit to the wire drive:
1. Slide the conduit bushing into the feed plate and
secure with the set screw.
2. Slide the conduit into the bushing and lock in
place with the thumb screw.
CONDUIT
BUSHING
A-7
SET
SCREW
THUMB
SCREW
CONDUIT