Tweco 220 VAC 50Hz Drag-Gun - Manual (Page 23)

Operating Manual 0-2737 19 DRAG-GUN Plasma Cutter (Australia)
7.0 P 7.0 P 7.0 P 7.0 P 7.0 PAR AR AR AR ARTS TS TS TS TS
REPLACEMENT REPLACEMENT REPLACEMENT REPLACEMENT REPLACEMENT
NOTE
All major parts troubleshooting, repairs, or parts
replacement should only be conducted by a quali-
fied service technician. All repairs are subject to
warranty - tampered parts may void warranty.
WARNING
Disconnect primary power to the system before dis-
assembling the torch & leads, or power supply.
7.1 T 7.1 T 7.1 T 7.1 T 7.1 Tor or or or orch & Leads Replacement ch & Leads Replacement ch & Leads Replacement ch & Leads Replacement ch & Leads Replacement
NOTE
Prior to removing leads, note all leads connections
inside the unit.
To remove the leads from the unit:
1. Disconnect the following torch lead connections in-
side the unit (see Appendix I-Torch & Leads Replace-
ment):
a. 2-pin Connector
b. Faston Connector to Resistor (red)
c. Faston Connector to CD Coil (white)
2. Loosen the 90° nylon fitting nut and remove the brass
lead fitting. Remove the torch leads from unit. (Cut
lead if necessary).
3. Remove 90° nylon fitting from unit Air Compressor.
(You may need to pull the sheet metal back slightly to
do this.)
To install replacement leads:
4. Remove the securing nut from the strain relief sup-
plied on the end of the replacement torch leads.
5. Feed the end of the replacement torch lead through
the hole in the front panel.
6. Tighten the strain relief and securing nut against the
sheet metal, allowing approximately 1 inch between
the end of the lead and the strain relief nut.
7. Apply teflon thread sealant to the threads of the re-
placement 90° nylon fitting and install in correct ori-
entation as shown in Appendix I-Torch & Leads Re-
placement.
8. To connect the brass lead fitting to the 90° nylon fit-
ting, loosen the nut on the nylon fitting until 3 threads
are visible. Moisten the end of the torch lead brass
fitting with water, then insert it into the nylon fitting
until it bottoms on the fitting's shoulder. Tighten ny-
lon nut securely by hand.
9. Make other connections as described in step 1 above.
7.2 W 7.2 W 7.2 W 7.2 W 7.2 Work Cable Replacement ork Cable Replacement ork Cable Replacement ork Cable Replacement ork Cable Replacement
Refer to Appendix I-Work Cable Replacement.
7.3 Input Power Cable 7.3 Input Power Cable 7.3 Input Power Cable 7.3 Input Power Cable 7.3 Input Power Cable
Replacement Replacement Replacement Replacement Replacement
Refer to Appendix I-Input Power Cable Replacement.
NOTE
In some models, the power cable plug must be re-
moved by customer and replaced by an appropri-
ate plug or wired directly to disconnect. Refer to
section 8.2-E, Parts List for those power cords re-
quiring special wiring.
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Order replacement parts by catalog number and complete
description of the part or assembly. Also include the
model and serial number of the torch. Address all in-
quiries to your authorized distributor.
NOTE
Standard hardware has been used in this unit. Re-
placement hardware can be purchased locally.
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If a product must be returned for service, contact your
authorized distributor. Items return to the manufacturer
without proper authorization will not be accepted.