Cembre DBSN Manual De Uso Y Mantenimiento página 3

The DBSN clamping device has been designed to attach Cembre drill to the fl ange of the rail
in "Non Possession" conditions. It can therefore remain in position during the passage of trains.
The DBSN clamping device consists of:
– Clamping unit (1)
– Clamping tooth (2)
– Clevis (3)
– Screw (4)
– 2 pcs special M6 screws (9)
– 2 pcs self-locking nuts (10)
– 2 pcs M6x35 screws (13)
– Thickness plate (15)
FIG. 1
NOTE: drilling operation by drilling machine equipped with DBSN device requires long type broach
cutters (88 mm) eg CY190L.
Fitting the dbsn clamping device to the drill (Ref. to Figs 3 ÷ 6).
The drill is clamped between the assembled positioning template (order separately) and the clamping
tooth (2) of the DBSN device (see Fig. 3).
To fi t the DBSN device on the drill proceed as follows:
– Select the positioning template for the type of rail to be drilled.
– Fit the positioning template on the DBSN clamping device by securing it with the two special
screws and nuts supplied (see Fig. 5).
Position the template approx. 90° to the base of the device, then screw up the two nuts without
fully tightening them
Note: Bear in mind that the small square "windows" in the lateral wings of the template must face
upwards (see Fig. 4).
– Lay the drilling machine on its side with advance lever upside, then withdraw the spindle com-
pletely.
– Fit the thickness plate (15) on the front plate (90) of the drilling machine.
Pins (91) will facilitate correct location (see Fig. 6).
Fit the assembly of clamping unit (1) and the positioning template on the thickness plate (15);
clamp the positioning template by fully tightening the two relevant screws (13).
3
DBSN CLAMPING DEVICE
15
2
3
4
1
ENGLISH
9
10
13