Model 7100 Portable Pin Welder
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SETUP and OPERATION
1. Attach the spring loaded ground clamp to the work table or directly to the duct. Insure the
connection is clean and free of foreign material or weld quality will be compromised.
2. Plug the welder into a proper electrical outlet and adjust the “Weld Time” to number “5”.
3. Use duct liner and a piece of scrap metal of the same gage for the following test.
4. Place a weld pin on the gun’s magnetic weld tip.
5. Press the pin into the liner, making contact with the metal using a twisting motion, then
apply moderate pressure prior to activating and throughout the weld cycle.
6. Pull and hold the trigger to start and continue the weld cycle. The green “WELD ON”
light will turn ON during the weld cycle and will automatically go OFF.
7. Release the trigger, lift the gun from the metal, then repeat the process with a new pin.
8. Test weld several pins in this manner and adjust the “Weld Time” to the lowest setting
required to give good weld results.
MAINTENANCE
The Model 7100 Portable Pin Welder requires very little maintenance due to it’s solid state
circuitry and design. We do, however, recommend the following procedures periodically.
CAUTION: Turn welder OFF and disconnect from electrical supply before
any maintenance or service is performed.
1. Remove all accumulated insulation dust and foreign debris from inside the welder.
2. Tighten all mounting hardware on solid state circuit components, transformers, cable con-
nections to weld transformer, ground clamp, weld gun and control cable.
3. Using a steel wire brush, clean the contact surfaces of the spring loaded ground clamp.
4. Clean and inspect the magnetic weld tip. Replace if badly burned, deeply pitted or if the
magnetism is too weak to properly hold a weld pin.
5. Carefully inspect and tighten all cable strain reliefs.
Note
: On the weld gun assembly, the
weld cable should take the heavy strain load, not the lighter control cable.
