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Repair Procedures
B. Regulator Kit
Disconnect electrical and compressed air service.
First follow "Handle Disassembly Instructions" then remove the
two large Phillips head screws to the rear of the wire terminals
on the right-hand side of the handle. This allows the regulator
assembly to swing free, connected only by the hose going
from the brass rear of the regulator to the loading chamber
assembly, and the main hose assembly. Remove the main hose
by unscrewing the elbow fitting from the regulator. Use a 5/16"
(8 mm) wrench to remove the loading chamber hose from
the regulator. Reassemble with a new regulator using reverse
procedure. Be sure hose fittings are quite snug. Check for air
leaks by activating the regulator. Once this is done, reassemble
the handle and heat shield.
C. Valve Kit
3M™ Hot Melt Applicator PG II must be heated prior to
repairing nozzle valve.
Avoid contact with hot adhesive and applicator tip. May
cause burns. Wear personal protective equipment (PPE) per
workplace and industry standard operating practices and
procedures when using and cleaning or changing tip. KEEP
TIP POINTED AWAY FROM BODY PARTS. Disconnect Air Line
before making repairs.
Nozzle valve assembly consists of the nozzle tip and the nozzle
valve. Remove the old valve assembly using a 5/8" (16 mm) open-
end wrench. Replace with new assembly. Gently snug up the
valve assembly. With a 1/2" (13 mm) wrench, also snug up
the new tip.
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CAUTION
D. Hose Kit
Disconnect electrical and compressed air service.
Follow "Handle Disassembly Instructions," page 13. Remove the
main hose by unscrewing the elbow fitting from the air regulator.
Cut the cable ties holding the power cord and hose assembly
together. Remove the hose and reconnect the new hose using
reverse procedure. Add new cable ties to the hose and power cord.
E. Switch Kit
Disconnect electrical and compressed air service.
Follow "Handle Disassembly Instructions," page 13. Lift the switch
from the slot in the right half of the handle. The power lead can
be unplugged from the power cord receptacle. The other wires
terminating in ring lugs should be removed from their respective
terminals, noting that the black lead is connected to the Thermal
Cut Out Assembly and the white lead to the heaters. Install the
new switch using reverse procedure.
F. Trigger Kit
Disconnect electrical and compressed air service.
Follow "Handle Disassembly Procedures". Lift the trigger
assembly off the trigger pin and replace. Reassemble following
reverse procedure.
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