Cembre DBSN Manual De Uso Y Mantenimiento página 4

ENGLISH
Clamping the drilling machine to the rail fl ange (Ref. to Fig. 7)
To clamp the drill complete with the DBSN device to the rail, proceed as follows:
– Lift clevis (3) from its housing, so to manually slide the entire complete "tooth (2) - screw (4)" as-
sembly into the "fully open" position.
– Insert the drill, keeping it slightly inclined downwards, underneath the rail fl ange near the point
to be drilled (see Fig. 7a).
– With the positioning template inserted between the head and fl ange of the rail, bring the drill
into the horizontal position: the rail fl ange must be parallel with the base of the DBSN clamping
device (see Fig. 7b).
– Slide the "tooth-screw" assembly by hand into the "fully closed" position so that the tooth (2) is sup-
ported on the edge of the rail fl ange (see Fig. 7c).
If this cannot be achieved, adjust screw (4).
– Relocate clevis (3) and tighten screw (4) with a 19 mm socket/spanner, to achieve fi rm clamping
to the rail fl ange (see Fig. 8).
N.B.: To be able to locate clevis (03) in its working position, screw head (04) must lean against the
body of the DBSN device.
– To remove the drill from the rail proceed as follows:
– Slacken screw (4) just enough to release the clevis (3);
– Lift the clevis and slide the "tooth (2) - screw (4)" assembly by hand into the fully open position,
which enables the drill to be removed from the rail fl ange.
ATTENTION:
With a cutter/bit fi tted and the drilling machine clamped to the rail, to avoid advance lever
interference in train area, ensure before drilling, that:
• The spindle shaft is completely withdrawn and the advance lever is parallel with the axis of
the rail, facing in the direction shown in Fig. 2.
• Check that the lever is not free to move.
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FIG. 2 – INITIAL POSITIONING OF THE LEVER
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