Replacing Gun Contact Tip; Gun Maintenance - MAC TOOLS MW50 Owner's Manual

5-6. Replacing Gun Contact Tip

Tools Needed:

5-7. Gun Maintenance

Head Tube
Y Disconnect gun first.
3/8 in
Remove nozzle,
contact tip, and
liner collet.
3/8 in
Remove liner.
Tools Needed:
2
1
To Reassemble Gun:
Install contact tip.
Insert new liner.
Install collet onto liner and tighten into gun/
feeder connector using wrench.
Cut liner off near collet so that liner end is
as close to drive rolls as possible without
touching.
Install nozzle.
Reinstall gun (see Section 3-4). Thread
welding wire (see Section 3-9). Close door.
3/8 in
Y Turn Off power before
replacing contact tip.
1 Nozzle
2 Contact Tip
Cut off welding wire at contact tip.
Remove nozzle.
Remove contact tip and install new
contact tip. Reinstall nozzle.
Ref. ST-801 978
Gun/Feeder
Connector
Blow out
gun casing.
OM-154 501 Page 17