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Part IV Maintenance and Repair (cont.)
C. Installation
Insert liner into power pin with cable laying straight. Con-
tinue 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).
Making sure cable is straight, trim and deburr liner beyond
end of neck to 9/16" (14.3 mm)
When using Jump Liner: Trim and deburr liner with 1/4"
(6.4 mm) extending beyond the gun handle. Install neck.
Install gas diffuser and nozzle.
Section 9. Rigid Strain Relief
A. Removal
Using a counterclockwise motion, unseat cap and sleeve
assembly from rigid strain relief. Remove screw securing
strain relief to adapter block.
B. Service
Inspect all components for cracks, debris, excessive wear
and breakage. Replace with new components if safety or
performance of product is compromised.
C. Installation
Align flats in rigid strain relief with flats on adapter block.
Slide strain relief onto adapter block and install screw.
Torque screw to 12 in-lbs (1.4 Nm). Using the arrows on
the cap to align with mating grooves, slide the cap and
sleeve assembly toward the rigid strain relief until seated,
and turn clockwise until engaging snap is felt.
Miller Power Pins
A. Removal
Remove the power pin tip that retains the liner from the
power pin with the appropriate wrench. Remove liner and
rigid strain relief from gun assembly. Position control lead
wires as necessary as not to damage them. Remove power
pin from adapter block using appropriate wrenches in a
counterclockwise rotation (See Figure 3).
FIGURE #3
Cable
Cap
Spring
Primary Trigger Leads
& Spare Leads
Screw
Adapter Block
B. Service
Test lead wires for continuity when trigger is engaged. Lubri-
cate o-rings with silicone lubricant. Inspect all components
for cracks, debris, excessive wear, and breakage. Replace
with new components if safety or performance of product is
compromised.
C. Installation
Assemble power pin onto adapter block in a clockwise rota-
tion using appropriate wrenches. Torque to 13 ft-lbs (17.6
Nm)
Install liner. Install power pin tip and tighten to retain liner
assembly (See Figure 3).
Strain Relief
(300A & 400A)
Strain Relief
(250A)
Power Pin
Liner
Liner Lock
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