When installing a plug on to a power cord:
Ensure your tool is completely cooled down before shutting off:
Watch for a plugged air intake:
If a tool's heater tube gets wet:
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