
3-35
M
AINTENANCE
Service Manual
Torch Lead
Torch Position
Sleeve
Blue
Wires (2)
Red
Wires (2)
Screw
White
Wires (2)
White Wires
(4 ea.)
Torch
Main Body
Black Plunger
Wires (2)
Screw (3)
Cap Sensor
Microswitch
Torch
Sleeve
O-Ring
Retaining
Cap
Shield
Figure 3-9 PAC121MS Torch Assembly
5.
Secure the red wires from the torch lead to the torch main body with screw.
6.
Position the torch sleeve onto the torch main body and secure it with the three screws.
7.
Use caution when installing the O-ring onto the torch main body, it can be easily damaged.
Lightly coat with silicone.
8
Screw the torch position sleeve and the torch sleeve together.
9.
When the nozzle, electrode and swirl ring are properly in place, replace the retaining cap with
shield. When the retaining cap is tightened, the microswitch will click, indicating that the torch
main body has been replaced correctly.
10. Align the connector plug key (on torch lead) with the connector receptacle key slot (on power
supply) and push it in until the pins seat.
11. Turn the connector securing ring 1/4 turn counterclockwise to ensure that the securing ring
threads and the connector receptacle threads are aligned prior to tightening. Turn the
connector securing ring clockwise to tighten.
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