MS Schippers Dumbox Mode D'emploi page 21

-it there is a lump you grind some concrete away from under the rail. -with holes you put something carrying (eg: metal,
concrete casting, ...) underneath the rail.
-Now drill and fix the second rail.
*ASSEMBLING LOCKING BLOCKS
Pull the complete wagon outside just against the stops of the rail and position and fix the locking block
Leave +/-0,5cm margin.
If the latch is touching the locking block you must shorten this a bit so that it comes easily behind the locking block.
2x(locking Block light + plug 14 + coach screw)
You do this also when the wagon is completely inside.
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