Robland KM 775, Instruction Manual

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Instructions manual KM 775 - 785
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
As described in the special maintenance section, the wheels and chain need
cleaning to prevent any loss of adhesion.
7.4 Router trimming diminishes:

If both chain and wheels are dirty and covered with a layer of dust, they lose their
adherence, and bearing in mind that all the stations exert pressure on the board, in
the end it is expelled and the tracing station is lost.

If dirt on the chain and wheels or poor trimming station adjustment means that
when the board arrives it is moved, then the start of routing will be traced (trimmed
correctly) but as the board passes through it will lose the tracer due to following a
non-parallel line. In the end the cutter will be so far separated that proper trimming
will be impossible.
7.5 The board moves:

As the above points have shown, keeping the chain and wheels clean is very
important for the piece to keep to the same line. On occasions, when it moves the
presser tends to drop. It is certainly possible to tighten a millimetre more with
respect to the panel measurement, especially with small pieces, but more than one
millimetre would mean overloading the drive motor, possibly to the extent that the
thermal cutout trips due to motor overheating. The presser wheels and rubbers
would also experience excessive wear, when the solution is simply to clean them.

It is very important to keep the presser fixing levers tightened to avoid the presser
lifting as the board passes through, leading to a loss in pressure making the board
very liable to move.

Check pressure roller tracing. See the “Pressure rollers” section for further details.
7.6 Uneven gluing:

Read the “Glue pot station” section carefully.

Check the condition of the glue.

Check tracing and glue pot pressure. If more tracing is needed, make sure that
none of the stations is moving the board before touching the tracer stop screw (see
“The board moves” section for further details).
8 INVERTER PARAMETERS
END TRIM
– TRIMMING
PARAMETERS VALUE
P-01 200
P-03 5
P-04 2
P-07 0
P-08 7