24
11.2) Drilling in line with the rail heads
(Ref. to Figs. 23-24)
11.2.1)
Fit the
MPAF...
positioning template corresponding to the rail to be drilled (see § 7.3).
11.2.2)
Fit the
MRF
clamp on the head of the rail, keeping it in contact with the rail head at a
point which defines the origin of the drilling centres, by locking it in position with the
lever. The lever is provided with a return pushbutton for moving in any direction after
locking. (See Fig. 23)
11.2.3)
Insert the
SPA...
positioning plate so that the curved part is facing upwards.
11.2.4)
Insert the locking pin (02) in one of the two holes of the connection plate.
11.2.5)
With the spindle fully withdrawn, position the drill on the rail close to the
MRF
clamp,
without locking the spindle.
11.2.6)
Slide the drill so that:
– the curved end of the SPA... plate is flush against the MRF clamp on theside iden-
tifying the origin of the distances.
– the MPAF... positioning template is flush against the locking bolt (02).
(see Fig. 24).
11.2.7)
Clamp the drill in this position by tightening the handwheel fully and commence drilling
(see § 10.1).
11.2.8)
To drill the second hole in the rail, repeat operations 11.2.6 - 11.2.7 with the locking pin
(02) inserted in the second hole of the
SPA...
plate.
FIG. 23 – ASSEMBLY OF THE MRF CLAMP