Logosol PH260 - Levelling the Machine Table; Levelling Procedure

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- Turn each of the threaded bars until the cutter head touches
the block along its entire length (alternatively, measure
between the table and the cutter head). Each threaded bar
has to be turned a little at a time to avoid the table getting
locked due to angular misalignment. Do not use force.
- When you are satisfied with the table adjustment, i.e.
the table’s lateral position, also check the table’s position
lengthways in the machine by measuring its height against
the upper edge of machine frame, and level the table in this
direction as well.
- Make sure that all the threaded bars are easy to turn. If any
of the threaded bars is difcult to turn, it is due to angular
misalignment of the table. Adjust this by slightly turning
the difcult bar, even if this results in the table being not
completely level. This deviation is taken care of by ne-tuning
the position of the upper cutter (see Adjusting the upper
horizontal cutter).
- Make sure that the table cannot be wobbled diagonally.
- Place the chain on the sprockets and tension the chain using
the chain tensioner on the out-feed side of the machine.
When the bearing housings of the upper cutter have been
adjusted, or when the take-off of the planing knives has been
altered, the rotating scale has to be calibrated. Possibly, the
pointer on the height scale on the front side of the machine
also has to be adjusted.
Levelling the machine table
Levelling the machine table is a serious and complicated
operation. Ensure that this operation is really necessary
before beginning any adjustments.
The machine table is already levelled from factory, but the table
can have changed its position by rough handling during transport
or by the machine being subject to impact.
Indications that the machine table is not level:
1. The upper cutter cannot be adjusted so that it is parallel to
the machine table (see p.14).
2. The crank for raising and lowering the table is difcult or
impossible to turn.
3. The chain that connects the trapezoidal threaded bars
that holds the machine table, has come off or has moved
incorrectly on a sprocket.
Instructions for levelling the machine table:
- Set the both bearing housings of the upper cutter in their
lowest position (see Adjusting the upper horizontal cutter on
p.14).
- Place an absolutely level block on the machine table directly
under the cutter head.
- Turn the cutter so that you can measure against the cutter
head (not against the knives or the knife slots).
- If possible, turn the machine table crank until the block comes
very close to the cutter. If it is impossible to raise the table,
you later have to take the measurement between the table
and the cutter head instead of using the block. This operation
is slightly more difcult.
- Loosen the chain for the machine table by opening the
chain lock (take the opportunity to clean and lubricate the
chain).