Section 5 − Installation; Installing Nozzle, Contact Tip, And Adapter; Installing Welding Gun - Hobart Welding Products Handler 187 Owner's Manual

5-1. Installing Nozzle, Contact Tip, And Adapter

Tools Needed:
8 mm

5-2. Installing Welding Gun

.
Be sure that gun end is tight against drive assembly.
Incorrect
Gun Not Seated
SECTION 5 − INSTALLATION
2
3
1
8 mm
1
3
Exposed O-rings
will cause shielding
gas leakage.
Head
Tube
4
2
3
3
Correct
Gun Fully Seated
! Turn off welding power
source.
1 Nozzle
2 Contact Tip
3 Tip Adapter
.
Wire size stamped on tip − check
and match wire size.
246 669-A
1 Drive Assembly
2 Gun Securing Thumbscrew
3 Gun End
Loosen thumbscrew. Insert end
through opening until it bottoms
against drive assembly. Tighten
thumbscrew.
Welding gun must be inserted
completely to prevent leakage of
shielding gas.
4 Gun Trigger Leads
Insert leads, one at a time, through
gun opening on front panel.
Connect female friction terminals to
matching male terminals in unit.
Polarity is not important.
Close door.
804 621-A
OM-228 187 Page 13