Planing; Repair And Maintenance; Changing The Cutters - Proxxon DH 40 Gebrauchsanleitung

Planing

Caution:
Always operate the thicknesser from the position as
shown in Fig. 2a so that you are always in optimal con-
trol of the work piece. Stand in front of the device while
working! Never work with your DH 40 from the side or
even from the back. Ensure sufficient stability while you
work!
Caution:
Never use your hand to reach into the infeed slot while
the planer is in operation! Risk of injury!
Caution:
Wear protective goggles.
Caution:
The service flap must always be closed during operation.
The planer is now ready for operation. The height of the
planing table 2 and thus the pass-through height and the
depth of cut (i.e. the "planing depth") can now be set on
the hand wheel 1 (Fig. 3). The position of the planing
table must, of course, first be set roughly to the thickness
of the workpiece. This can expediently be estimated by
means of the linear scale 3 at the side of the inlet open-
ing. The value printed here gives the distance between
the tips of the planing cutters and the surface of the plan-
ing table. If this value is the same as the thickness of the
workpiece, the depth of cut (i.e. the "shaving thickness"
so to speak) is exactly "zero".
Note:
It is recommended that the opening be set rather "gen-
erously" and the workpiece run through a few times.
increasing the depth of cut a little each time by turning the
hand wheel to the left in order to obtain a feel for the cor-
rect height. When the planing cutter just comes into con-
tact with the top edge of the workpiece while it is passing
through, then the depth of cut is zero.
The scale ring 4 on the hand wheel can now be set to ze-
ro. There is a mark 5 on the housing to assist with this.
The required depth of cut can now be set using the hand
wheel. One turn corresponds to one millimetre stroke of
the planing table, i.e. if it is required to make a reduction
of 0.5 millimetres, the hand wheel must be turned to the
left by half a turn. The exact value can be read off on the
scale ring.
Note:
Although your planer is a solid and robustly made ma-
chine, in spite of this it is primarily intended for fine and
precise working. Do not overload the planer by machining
harder types of wood with large depths of cut and a cor-
responding width of workpiece over a long period of time.
Please note:
When you have run the workpiece through and planed it
a few times and are approaching the required thickness,
it is recommended that the last passes be made with a
rather smaller depth of cut in the interests of a better sur-
face quality.
If the workpiece is drawn in but comes to a stop after a
few centimetres, then the depth of cut has been set too
large. In this case, turn the hand wheel to the right to low-
er the planing table and thus reduce the depth of cut. The
workpiece will then be drawn in normally once more.
Then continue to plane until the required thickness is
achieved.
Note:
Make sure that no work pieces are inserted, which are
higher than 40 mm.
In this case, the workpiece will no longer be pushed
through by the draw-in roller in the planer and can be-
come stuck in the kickback device, which normally pre-
vents the workpiece from sliding back.
Note:
Depending on the amount of accumulated dust, we rec-
ommend cleaning the chip discharge channel (pos. 11,
Fig. 1) with a vacuum cleaner. Caution! Always switch off
the planer!

Repair and maintenance

Changing or reversing the planing cutters
The cutter shaft of your planer is equipped with 2 re-
versible cutters for the highest surface quality. Each of
the fitted planer cutters 6 (Fig. 4) has two blades (re-
versible cutters). When the first has become worn or
damaged, you can simply remove the cutter, reverse it
and use the other side. When this is no longer sharp
enough, then new cutters must be fitted. Remember al-
ways to reverse or replace the cutters in pairs.
You can obtain replacement cutters from your dealer.
Use only the spare knives intended for the machine!
Note:
Used planing cutters must not be reground. Please al-
ways replace or reverse them. Replace damaged plan-
ing cutters immediately.
Caution:
Please only handle the cutters with extreme care, as
these are very sharp. Risk of injury!
Caution:
When carrying out any repair and service work, it is es-
sential that the mains plug be removed in order to pre-
vent accidental starting of the planer.
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