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PR-2000
6.2 Single-Sided Spot Welding
Figure 6.6
Figure 6.9
6.3 Bolt Welding
Figure 6.10
Figure 6.12
Copyright © Pro Spot International, Inc.
2005-2009
Single-Sided spot welding is used where Two-Sided spot welding cannot be used.
Important: The Single-Sided spot welding is not permitted on supporting
frameworks of a vehicle. It is only permitted for cosmetic purposes.
1. Push the Single-Sided weld mode button (fig 6.3). Single Sided Weld Programs
will display on the screen (fig. 6.5). The PR-2000 software defaults to Single Spot
Weld Mode (fig. 6.6).
2. Choose weld power level by pressing the "Next Program" button repeatedly.
(refer to section 4.6 "Setting the weld program").
3. Fit the Single-Sided Gun with Single-Sided electrode (fig.6.9).
4. Grind between the inner and the outer body sheets to remove paint, primer and
rust. This ensures good electrical contact when performing Single-Sided welding.
5. Ground the working area (refer to section 6.1 "Single-Sided Welding
Overview").
6. Apply about 33-44 lbs of pressure on the Single-Sided gun and push the trigger
to weld. Reposition and weld again.
Note: Make sure that Single-Sided electrode is clean. If it isn't, use a file
or tip dresser to clean it. If the weld cap shows considerable wear, it
should be replaced (refer to section 5.4 "Removing Welding Electrodes")
Many of today's car bodies come with factory equipped threaded studs. After a
collision, the studs may be lost or do not accompany the replacement part. With
the PR-2000, threaded studs can be welded-on in factory style. This type of stud
is also common throughout the car body for attachments of interior, tail lights,
door moldings, etc.
Tip: A threaded stud can also be used to fasten the ground clamp directly
to the panel, minimizing the area needed for grinding.
Studs are held in place during welding with magnetic adapter electrode.
1. Push the Single-Sided weld mode button (fig 6.3). Single Sided Weld Programs
will display on the screen (fig. 6.5). The PR-2000 software defaults to Single Spot
Weld Mode (fig. 6.6).
2. Select Bolt Welding Program by pressing the Left or Right Navigatioin Buttons
(fig. 4.9). Make sure that Bolt Welding graphic appears on the screen (fig. 6.10)
3. Choose weld power level by pressing the "Next Program" button repeatedly.
(refer to section 4.6 "Setting the weld program").
4. Fit Single Sided gun with the magnetic stud adapter (fig. 6.12).
5. Insert stud into the adapter (fig. 6.12).
6. Prepare the surface area by removing paint and primer.
7. Ground the working area (refer to section 6.1 "Single-Sided Welding
Overview").
8. Position single sided gun over work area and push the trigger to weld.
9. Repeat as needed.
6 Single-Sided Welding
Page 25
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