If your Variant T1 stops driving while welding, check that the heater locks correctly into the welding position.
How the Weld Position Locking Mechanism Works
After allowing the tool to cool down completely. Slide the heater all the way to the right/outside of the tool. Note that you can now see a groove in the guide shaft.
In the picture below, a small flat screw driver is being held against a ball bearing set screw.
Note: Always change both brushes at once. If one brush needs to be changed, change them both.
If you're building an extension cord for your Leister automatic tool such as the BITUMAT, VARIMAT, or VARIANT T1, here are some things to keep in mind:
Machine is not running straight
This section is designed to provide our customers with some quick tips for common problems they may encounter with their tools. Our tips come straight from John Wesselson, our repair technologist.