29Bend-Tech Dragon
Toolhead & Tools Troubleshooting
04
Troubleshooting Guide
4.2 Grounding the Torch
It is critical the Plasma Torch is grounded properly. Improper grounding can lead to numerous
cutting issues. Early Dragon A400 Machines used a pair of brushes contacting the Chuck
Spindle to ground the Torch. To achieve a more consistent grounding convert to a grounding
tab mounted on the pillow block bearing.
Tools Needed
•
• Ratchet
• 12 in. extension
•
• ¾ in. socket
• ½ in. wrench
• Grinder
1. Remove the Trolley Cover
Trolley Base. Unscrew the red E-stop button. Reach inside the Trolley Cover and hold the
E-Stop button while unscrewing the chrome retaining collar. Remove the chrome retaining
collar and yellow E-stop label. Remove the E-Stop button and lay it out of the way on the
Trolley. Remove the Trolley Cover.
2. Remove the Pillow Block Mount Bolt
Use a ¾ in. socket to remove the rear pillow block mount bolt nearest the Y-Axis Motor.
3. Grind the spot Clean of Paint
4. Fabricate a Grounding Tab
grounding tab from Bend-Tech.
5. Remove the Grounding Cable from the Carbon Brush Mount
mount. Place a ½ in. wrench on the nut to assist in the removal.
6. Attach the Grounding Tab to the Prepared Space on the Pillow Block
Place a small amount of grease on the ground surface of the pillow block bearing. Place the
grounding tab on the ½ in. pillow block mount bolt, then place the washer. Insert the ½ in.
bolt and thread it into the mounting hole. Ensure the grounding tab is positioned so it will not
interfere with the Trolley Cover.
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