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C. Installation
Firmly secure gas diffuser with an appropriate wrench in a clockwise
rotation. Always reinstall gas diffuser insulator to decrease the chances
of short circuiting. Note that Centerfire gas diffuser does not require a
gas diffuser insulator.
Section 5. Liner
A. Removal
Remove nozzle, contact tip, and gas diffuser. Lay cable straight. Grasp
liner lock which protrudes from power pin (some direct plugs may
require removal of additional components to access the liner lock) and
remove from cable assembly by pulling.
B. Service
Inspect for excessive wear and debris on the inside diameter. Do not dip
liner in solvents for cleaning. Liner may be periodically blown out with
compressed air. Replace with new liner when excessive wear or debris
produces poor electrode feed.
C. Installation
Insert liner into power pin with cable laying straight. Continue until liner
lock is fully seated into power pin. A twisting motion may be necessary
to seat o-ring (some direct plugs may require installation of additional
components to secure liner). Trim and deburr the liner 3/8” (9.5 mm)
past the nozzle end of the neck. Install gas diffuser and nozzle.
Section 6. Handle/Switch Assembly
I Curved Handle
A. Removal
Remove screws, post fasteners, and hang-up hook (See Figure 1).
Separating handle halves will expose interior connections and trigger
switch assembly. Slide switch assembly out of cavity and remove
terminals from trigger.
B. Service
Inspect for cracks, deformation of hex areas, debris, holes, loose or
missing threaded inserts, excessive wear, exterior heat deformation, and
warpage. If any of the above conditions exist, replace with new handle
or clean all surfaces with mild detergent and reinstall. Test switch for
continuity. Clean any debris from trigger, if necessary, replace with new
trigger.
C. Installation
Begin assembly by placing the hexagon portion of the neck within the
rear hexagon portion of the handle half. The hex bushing will be cradled
within the forward hex locators. Install switch assembly by pressing
control wire terminals fully onto terminals of switch assembly and slide
assembly into switch cavity. Route hoses, cable, control wires, and
switch as not to be pinched when reinstalling second handle half. Install
hang-up hook, post fasteners, and handle screws. Tighten screws while
being aware not to pinch cable jacket in joint between the handle halves.
II Legacy Straight Handle
A. Removal
Remove switch and screws from handle (See Figure 2). Remove
terminals from the switch assembly. Slide handle down the cable to gain
access to neck connections. Neck must be removed to replace handle on
all round handled guns except those with straight necks.
B. Service
Inspect for cracks, debris, holes, loose or missing threaded inserts,
excessive wear, exterior heat deformation, and warpage. If any of the
above conditions exist, replace with new handle or clean all surfaces
with mild detergent and reinstall. Test switch for continuity. Clean any
debris from trigger, if necessary, replace with new trigger.
C. Installation
Slide handle over power cable. Reinstall neck (See Figure 3). Place
the hexagon bushing on the neck. Install aluminum spacers over the
bushing and secure with screws. Install insulation spacers on hexagon
water block and secure using pop rivet. Top mount switch assemblies
require insulation spacers be mounted on the bottom of the hexagon
water block. Bottom mount switch assemblies require insulation spacers
be mounted on the top of the hexagon water block. Route control wires
as not to be pinched when reinstalling handle. Align spacers and secure
with screws. Install switch assembly into position by installing terminals
onto the switch assembly and then secure with screws.
Handle Screws
Handle Half, Left
Handle Half, Right
Post Fasteners
Trigger
Hang-Up Hook
Neck
FIGURE 1
Trigger
FIGURE 2
Trigger Screws
Handle
Handle Screws
Neck
Spacer Screws
Neck
Rivet
Conduit Set Screw
Power Cable
Outer Cover
Conduit
Return Hose
Spacers, Plastic
Bushing
Spacers,
Aluminum
FIGURE 3
