Tweco PCM - 102 Machine Torch - Manual (Page 42)

SERVICE 5-10 Manual 0-2818
5.08 Servicing Machine Torch (PCM)
Components
WARNINGS
Disconnect primary power to the system before
disassembling the torch or torch leads.
DO NOT touch any internal torch parts while the
AC indicator light of the Power Supply is ON.
A. Removing Machine Torch Head
1. Unscrew the positioning tube from the Torch
Head.
2. Slide the positioning tube back over the leads to
expose the Negative / Plasma Lead connection,
Pilot Lead connection, and two PIP (parts-in-place
circuit) connectors.
Machine Torch Head
Pinch Block Assembly
Positioning
Tube
A-02587
Figure 5-13 Torch Mounting Assembly
3. Disconnect the Negative / Plasma Lead, Pilot
Lead and the PIP connectors to allow removal of
the Torch Head Assembly.
Pilot Lead
Connection
Parts-in-Place
Wires
Negative/Plasma
Lead Connection
A-02581
Figure 5-14 Torch Head Removal
B. Reassembling Machine Torch Assembly
1. Connect the two PIP lead connectors, the Nega-
tive / Plasma Lead and Pilot Lead.
NOTE
Tape the PIP lead connectors to the leads covering.
2. Screw the positioning tube tightly onto the Torch
Head.