Lukas DUO Traversing System - Manual (Page 20)

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6.1.8 Setting up and adjusting the distance bars
The distance between the load lifting points must be set exactly with the distance bars. For
this reason they come with a rough and fine adjustment option.
Rough adjustment of the distance bars:
1. Pull out the lock pin.
2. The coupling bar can now be pulled out to roughly set the distance between the roller
carriages. The hole in the coupling bar must be aligned with the corresponding hole in the
tube.
3. Reinsert the lock pin in the corresponding hole in the tube.