Thermal Dynamics PAK 200, Operating Manual

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TORCH MAINTENANCE 7-6 Manual 0-5057
PAK 200
Sheath
Connectors From
Torch Switch
Torch Handle
Torch Control
Switch
A-02196
Threaded Locking Nut
Switch Wiring
3. Carefully cut and remove the tape from the leads
and the end of the leads sheathing.
4. Slide the sheathing back to expose the torch switch
connectors.
5. Remove the tape securing the two connectors
together.
6. Disconnect the torch switch leads.
NOTE
The torch switch connectors are made to fit
into the matching connectors.
7. Remove torch from handle.
NOTE
Keep the lock nut threaded on the torch head.
8. Disconnect all four leads to disconnect the torch
head.
9. Remove torch head assembly.
A-02197
Secondary Lead
Plasma (+) Lead
Coolant Return Lead
Coolant (-) Supply Lead
Torch Head Removal (PCH-200)
10. Remove the torch handle and switch from the
leads.
11. If the torch switch is defective, remove the switch
from the torch handle.
B. Reassembling Torch Switch and Torch Head
Assembly
NOTE:
Verify that small rubber duck valve is in torch
plasma fitting.
To install the torch switch or torch head assembly use
the following procedure:
1. Slide the torch handle with torch switch and sheath-
ing over the torch leads.
2. Connect all four leads to connect to the replacement
torch head assembly.
3. Remove the rigid insulator from the old Torch Head
Assembly from between the layers of Estermat
paper and install replacement insulator. Refer to
illustration pg. 7-7 for location and orientation of
rigid insulator.
NOTE
Over a period of time there may be a breakdown
of the estermat paper causing the Torch Head to
short out if the rigid insulator is not installed.
4. Secure the rigid insulator in place with electrical
tape.
5. Tighten the threaded locking nut with the flat
(non-chamfered) edge against the torch head,
then loosen the nut slightly by turning it back ap-
proximately one-half turn.
6. Install the torch head on the handle.
NOTE
The torch switch connectors are made to fit
into the matching connectors.
7. Connect the two torch switch leads.
8. Tape the two control cable connector leads to-
gether.
9. Pull the leads sheathing over the connectors and
secure with electrical tape to the torch leads.
10. Roll the torch switch sheath back over the han-
dle.
11. Install torch parts in torch.
12. Align the Torch Control Switch on the handle in
the desired position for cutting, position the torch