Installation – Lincoln Electric IM915 POWER FEED 10M SINGLE WIRE FEEDER User Manual

Page 15

To change the gun bushing:

1. Turn off power at the welding power source.

2. Remove the welding wire from the wire drive.

3. Remove the thumb screw from the wire drive.

4. Remove the welding gun from the wire drive.

5. Loosen the socket head cap screw that holds the con-

nector bar against the gun bushing. Important: Do not
attempt to completely remove the socket head cap
screw.

6. Remove the outer wire guide, and push the gun bush-

ing out of the wire drive. Because of the precision fit,
light tapping may be required to remove the gun bush-
ing.

7. Disconnect the shielding gas hose from the gun bush-

ing, if required.

8. Connect the shielding gas hose to the new gun bush-

ing, if required.

9. Rotate the gun bushing until the thumb screw hole

aligns with the thumb screw hole in the feed plate.
Slide the gun receiver bushing into the wire drive and
verify the thumb screw holes are aligned.

Note: Some gun bushings do not require the use of the

thumb screw.

10. Tighten the socket head cap screw.

11. Insert the welding gun into the gun bushing and tight-

en the thumb screw.

Gun Receiver

For use With

Bushing

K1500-1

K466-1 Lincoln gun connectors;
Innershield and Subarc guns)

K1500-2

K466-2, K466-10 Lincoln gun
connectors; Magnum 200/300/400
guns and compatible with Tweco

#4)

K1500-3

K1637-7 Lincoln gun connectors;
Magnum 550 guns and compatible
with Tweco

#5)

K1500-4

K466-3 Lincoln gun connectors;
compatible with Miller

guns.)

K1500-5

(Compatible with Oxo

guns.)

K489-9

( Lincoln Fast-Mate guns.)

A-7

INSTALLATION

POWER FEED

10M SINGLE WIRE FEEDER

A-7

DRIVE ROLL PRESSURE SETTING

The POWER FEED

10M Single Wire Feeder is facto-

ry set with the pressure indicator approximately "2".
The best drive roll pressure varies with wire type, wire
surface, lubrication and hardness. Too much pressure
could cause "birdnesting", but too little pressure could
cause slippage.

Set the drive roll pressure by:

1. Press the end of the gun against a solid object that

is electrically isolated from the welder output and
press the gun trigger for several seconds.

2. If the wire "birdnests" or jams, the drive roll pres-

sure is too high. Reduce the pressure by one turn
of the knob, run new wire through the gun, and
repeat step 1.

3. If the only result is slippage, disconnect the gun and

pull the gun cable forward about 6" (150mm).
There should be a slight waviness in the exposed
wire. If there is no waviness, increase the pressure
setting one turn, reconnect the gun and repeat the
above steps.

CHANGING THE GUN RECEIVER BUSHING

Gun receiver bushings make it easy to switch from
one gun to another.

Tools required:
1/4" Allen wrench

FIGURE A.5

ITEM

DESCRIPTION

Thumb Screw

Gun Receiver Bushing

Connector Bar

Socket Head Cap Screw