CHESTER Champion 20VS, Operation Manual

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In order to prevent you from having to reorient the milling head when altering later
on, we recommend you to provide the column and the adapter as well as the engine
bed with alignment pins. If required, pin the column together with the cross table
before disassembling the column.
It is recommended to use hardened straight pins according to DIN 6325 in 8mm or
10mm and a fitting tolerance zone m6. (zB. DIN 6325-8 m6 x 30). These alignment
pins have a round cap on one side which facilitates pinning together the parts. When
assembled the boring holes must be pilot-drilled to 0.2mm smaller and then rubbed
with a reamer also when assembled. Ideally, use a new twist drill with a diameter of
7,8mm for alignment pins of 8mm.
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