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WARNING:
Do not operate this machine until the pressure gauge shows the correct pressure
of approximately 6 -8bar . Other pressure settings can cause potential damage to the machine.
CAUTION:
Use care when installing or removing
sharp boring bits.
To install boring bits:
1. Make sure the two set screws ( Fig.
chuck are backed out far enough for the bit to be
inserted. Push the shank of the boring bit into
the knurled end of the chuck. Make sure the flat
of the boring bit shank is toward the set screws,
as shown in Fig.
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2. Tighten both set screws on the chuck with a
2,5mm hex wrench, shown in Fig. 1.
3. Push the chuck all the way down onto the
spindle. See Fig. 2. Rotate the chuck right and
left while pushing it down, to make shure it
properly engages the spindle, and ist fully
seated, as shown in Fig. 3. (The roll pin inside
the chuck should slide into the notch in the
spindle)
4. Repeat for other spindles as needed.
5. After all boring bits are installed, check to make
sure they are aligned, that is, that they all
protrude an equal distance from the chuck. ( This
assumes, of course, that all boring bits are of equal length ). This can be done by laying a
straight edge across the tips of the boring bits, as shown in Fig.
6. If a boring bit does not align with the others, remove that boring bit/chuck from the spindle.
Loosen the two set screws on the chuck and remove the bit from the chuck.
7. Re-insert the bit into the chuck and tighten the two set screws.
8. Re-install the chuck on the spindle, and confirm the accuracy of the adjustment with your
straight edge.
13.5.5 Boring Head: 90 Degree Pivot
To pivot the boring head from vertical position to
horizontal position, proceed as follows:
Make sure the main fence has been moved back, so
that it cannot bind against the table when the boring
head pivots upward.
• Loosen the locking handle (rotate counterclockwise)
on the left side of the machine frame. See Fig. 10.
• Pull out on the angle pin. (NOTE: You may have to
loosen the socket head cap screw on the angle pin
to allow it to move freely)
• On the front control panel, turn the "Vertical-
Horizontal" switch to Horizontal position (see
"Operating Controls")
HOLZMANN MASCHINEN GmbH
8
) on the
www.holzmann-maschinen.at
MULTI-DÜBELBOHRMASCHINE / SINGLE-RAW MULTI-BORING MACHINE / TALADRO MULTIPLE DBM 21N
8
Angle pin
Locking handle
ASSEMBLY
Fig. 8
Fig. 9
Fig. 10
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