USER MANUAL
AcuDrill
DRILLING MACHINE
Edition: June 2016
-
MODE OF USE
Revision: No. 4
22
3.3.5
Pressure test:
Once the drilling machine set and accessories are installed on the
intermediate valve, perform a pressure test.
To do so, apply compressed air through the venting valve to check
tightness of the assembly (see
Figure 25
).
Once the interior is pressurized, and with the venting valve closed,
check for leaks in the threaded connections or the gasket at the
mains head seat gasket using a spray detector or soapy water.
Correct in case of leaks.
Once the check is complete, open the venting valve to
depressurize, then leaving it in the “closed” position.
Figure 25
3.3.6
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
26
). 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 electrical or pneumatic swivel gear.
SWIVEL GEAR
If an electrical actuation swivel gear (drilling machine) or 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, S.L.
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
26
) 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 26
), 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.
Figure 26