15
If there is not enough play in the bearing housings for the
cutter to be adjusted, the machine table has to be adjusted
(see p.22).
Adjust the planing knives so that they are on a level and
protrudes 1 mm (0.04”). This is done with the help of the setting
block of aluminium (ref. no. 7500-000-1020), which is found in
the parts box that lies on the machine table when you receive
the machine.
Loosen the chip breaker’s lock screws, and pass the setting
block sideways over the planing knife. Raise or lower the knife
until it just touches the setting block when the block is passed
over the knife. (The protrusion of the planing knives can also
be adjusted with a magnetic adjuster for the upper cutter, ref.
no. 7500-001-0050. See the instructions that come with the
magnetic adjuster.)
Tighten the chip breakers’ lock screws properly when the
adjustment is made. Screw down the adjusting screws until
they touch the bottom of the indentations of the knives.
When the bearing housings of the upper cutter have been
adjusted, or when the takeoff of the planing knives has been
changed, the position of the rotating scale must be calibrated.
Possibly, the height scale’s indicator on the front side of the
machine has to be adjusted too.
Adjusting the takeoff of the upper cutter
The takeoff of the upper horizontal cutter is set by using the crank
(1) on the right upper corner of the machine. This crank raises
or lowers the machine table via a chain transmission. Set by
the scale on the front side of the machine, which indicates the
thickness of the processed work piece. By moving the indicator
upwards or downwards, the scale can be calibrated to match
the takeoff of the upper cutter. There is also a circular scale
on the crank. This scale indicates that each turn of the crank
raises or lowers the machine table 4 mm. Also this scale can be
calibrated. Loosen the Allen screw under the scale, and rotate
it into the correct position.
Always raise the table upwards to reduce any play in the
threaded bars. If the table is to be lowered, rst lower it 2 mm
more (half a turn with the crank) than the desired height and
then raise the table into the correct height.
The chain that raises and lowers the machine table should not
be slack, but be so tensioned that it does not connect wrong
with the sprockets. The tension is adjusted with a nut that is in
the chassis under the machine table on the out-feed side.
Do not adjust the chain tension as long as the raising and
lowering of the table works. An incorrect tension can cause
the chain to jump off the sprocket.
Removing, mounting, and grinding planing knives
See the section Lower Horizontal Cutter above.
Moulding Knives in the Lower and Upper
Cutter
Before opening the planer’s cover, ensure that the power is
disconnected and that the cutter heads are not rotating. Use
protective gloves. This is especially important when you are
loosening screws that are tightly screwed, or when you are
tightening the screws (see Safety Instructions). Be careful
of the planing knives. You can easily get cut by those, even
when touching them lightly.
Moulding knives can be mounted both in the lower and the
upper cutter. The moulding knives must always be mounted in
pairs and in the same lateral position in the opposite slots of
the cutter head. A certain degree of lateral deviation between
the moulding knives can, however, be accepted, as long as the
cutter head stays balanced.
Warning! Lack of balance in the cutter head creates
vibrations that can damage the machine and cause
personal injury.
The moulding knives must always be mounted in pairs so
that the cutter head stays balanced.
After mounting of moulding knives:
Make sure there are no tools left inside the machine.
Make sure that all screws are reliably tightened.
Make sure that the cutter heads can rotate freely before
closing the protective cover.
Do you remember the safety instructions on pp.4-5?
Mounting moulding knives
The lower and the upper cutter have four knife slots each. As
mentioned above, the machine comes with two mounted planing
knives in each horizontal cutter. In the two empty slots you can
mount moulding knives of different sizes and proles.
If back relief knives are mounted in the lower cutter, these
should be laterally positioned in such a way that they can
pass through the tracks in the machine table.
Screwed to the chassis, above the machine table on the
in-feed side, there is a limiting plate that, when it is turned
up-side-down, limits the maximum takeoff of the upper cutter.
This plate must be used when moulding knives are mounted
in the upper cutter. If a work piece that is too thick is fed
through the machine, the feed rollers can be pressed
upwards so that they come in contact with the moulding
knives.
- Assemble the knife clamping gib (chip breaker) (D) and the
moulding knife (E). (See p.13.)
- Insert the gib and the moulding knife in the wide end of the
slot in the cutter head.
- Push the knife and the gib along the slot, and then fasten
them by turning the screw (F) on the back of the gib
anticlockwise so that it presses against the side of the
slot.
The lock screw must be xed in the narrow part of the slot.
I must not be xed in the wide end of the slot.
- Measure the lateral position of the knife, and t an identical
knife in exactly the same position on the opposite side of
the cutter head.
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