Tweco 15XC CE Merlin PAK - Manual (Page 76)

SERVICE 4 - 4 Manual 0-2529
4.3 MACHINE TORCH HEAD REPLACEMENT
Machine Torch Leads
Replacement
WARNING
Disconnect primary power to the system before
disassembling the torch, leads, or power supply.
Refer to Figure 4-D (page 4-5) and:
1. Remove the electrical tape from the end of the nylon
outer leads sleeving next to the mounting assembly
and push the sleeving back onto the leads approxi-
mately one foot (0.3 m) to expose the shielded inner
leads sleeving.
2. Remove the electrical tape from the shielded inner
sleeving and push back over the leads approximately
one foot (0.3 m).
3. Unscrew the mounting assembly from the torch head.
Slide the mounting assembly back over the leads to
expose the leads connections.
4. Remove the tape that secures the lead connections
around the insulating tab. Disconnect the plasma,
secondary, coolant supply, and coolant return leads
from the torch head.
To minimize coolant leaks during torch head replacement,
perform the operation with the torch head above the level
of the coolant reservoir.
5. Connect the plasma, secondary, coolant supply, and
coolant return leads onto the replacement torch head
fittings.
6. Use electrical tape to secure the leads in place on the
insulating tab. Locate the tape over the ferrule on the
negative lead.
NOTE