Tweco 15XC Merlin - Manual (Page 75)

Manual 0-2251 5-3 CUSTOMER/OPERATOR SERVICE
5.2 HAND TORCH HEAD REPLACEMENT (continued)
Hand Torch Head
Replacement (continued)
4. With a twisting motion, pull the handle from the torch
head. Slide the handle back over the leads to expose the
leads connections.
5. 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.
6. Connect the plasma, secondary, coolant supply, and
coolant return leads onto the replacement torch head
fittings.
7. Use electrical tape to secure the leads in place on the
insulating tab. Locate the tape over the ferrule on the
negative lead.
Make sure the insulating tab completely separates the
coolant supply lead (negative) from the plasma, secondary,
and coolant return leads.
8. Replace the handle onto the torch head.
9. Connect the two torch switch leads connectors and
secure the torch switch leads in place with electrical
tape.
10. Secure the leads sleeving to the leads with electrical
tape. Position the tape close to the back of the handle.
11. Roll the torch switch sheath back over the handle.
Figure 5-C Hand Torch Head Replacement
NOTE
CAUTION