USER MANUAL
AcuDrill
DRILLING MACHINE
Edition: June 2016
Revision: No. 4
MODE OF USE
-
29
3.5.6
Drilling the mains:
Once the pressure test is complete, lower the chuckshaft by rotating the machine body
(with your hand in the knurled area), until the pilot drill makes contact with the pipe (the
chuckshaft will have risen depending on the contact force: see measurement
a
of
Figure
40
). At this point, withdraw the tip of the drill from the pipe by approximately one turn.
Now begin drilling the mains by activating the chuckshaft using the ratchet wrench, if
drilling is manual, or through the pneumatic swivel gear.
SWIVEL GEAR
If a pneumatic swivel gear (pneumatic, non-impact tool) is used, the
following considerations must be taken into account:
C
The rotation speed must be that indicated by the hole saw manufacturer.
C
The adapter components may be supplied by Acuster Global, SL.
C
The usage and safety recommendations given by the manufacturer must
be followed.
Feed is achieved by making the machine body rotate (with the hand placed in the knurled
area). The recommended distance produced by the feed is
a
= 1 or 2 mm (see
Figure 40
)
when drilling with the pilot drill. Once perforated with the drill, remember that distance
a
will be increased by the internal driving pressure. The feed limit is indicated by a
mechanized line on the fastening bush shaft. If due to an excess of compression (feed +
internal pressure) this line becomes visible (see
Figure 40
), turn slightly in the opposite
direction to return to the previously-recommended distance.
Ensure that the drilling is complete by making one or two additional turns.
WARNING !
It is recommended to avoid excess feed, especially in the pilot drill work
phase, given that the drill could break specially at low revolutions.
Figure 40
Figure 41