Valley FABRICATOR 251 Service Manual - Service Manual
August 22, 2008
3-7
SERVICE MANUAL
FABRICATOR 251
3.08 Attaching the Gun and Cable
Assembly to the Power Source
The Fabricator 251 is supplied with a Valley National Gases 400 AMP air-cooled gun. This MIG gun is designed with an
ergonomic handle and fewer parts to reduce performance problems. It also uses standard readily available Valley
National Gases consumable parts.
1. Open the door panel to the machine by inserting your left and right index fingers into the two release mechanisms
marked with hand arrows in Figure 3-4. Slide them toward each other and pull the cover outward and up to
open.
Art # A-07142_AB
Set up Ch
art
Figure 3-4: Door Panel Opening
NOTE
Lubricate the O-ring on the quick-connect fitting of the gun cable with grease (Dow company #4 compound
or equivalent).
2. Route the gun cable through the access hole in the front panel. Refer to Figures 3-5 and -3-6.
3. Loosen the thumbscrew and insert the gun cable end as far as it will go. Tighten thumbscrew. Refer to
Figure 3-6.
4. Align the keyways of the Gun Switch connector with the receptacle below the gun cable and plug them together.
Secure by turning the locking ring to the right (clockwise ). Refer to Figure 3-6.
NOTE
When disconnecting gun switch leads from the machine, loosen the locking ring and grab the connectors
and pull. Do not pull on the wires.
5. To remove the gun, reverse these directions.