Specifications

11
28
FIG. 3 – COOLING UNIT
5. SR 5000 COOLING UNIT
(Refer to Fig. 3)
The type SR 5000 cooling unit consists of a tank complete with tube and maximum pressure
valve (01), fitted with a pump device for pressurisation, which must be connected to the
attachment (35) on the drill by means of its quick-coupling (03).
The delivery and shutoff of the lubrocoolant are controlled automatically, when drilling
with a broach cutter, from the position of the guide bit; when drilling with spiral bit,
the delivery and shutoff of the fluid must be effected manually by operating the tap
(02). The use of the lubrocoolant supplied by Cembre in the recommended concentrations,
guarantees optimum use of the drilling tools.
The consumption of the lubrocoolant depends both on the variable degree of
opening of the tap (02) and the inner pressure of the tank: it is therefore advisable
to open the tap a little when the tank is at maximum pressure, whilst it must be fully
opened when the pressure in the tank is low.
When using the cooling system pay careful attention to the instructions on the tank label.
Warning:
● When the tank is not under pressure, check that the bush on the maximum
pressure valve is screwed right down.
● To fill tank with lubrocoolant, turn handle anticlockwise approximately 2 turns to
release handle locking mechanism. Remove handle/piston assembly from tank.
02
03
35
17
01
Detail of the
max pressure valve
01 – Tank complete with hose
and max. pressure valve
02 – Tap
03 – Quick-coupling
17 – Vent valve
35 – Attachment valve
Fig. 26a
Fig. 26b
Fig. 26c
02
04
03
10.2) Clamping to the rail flange (Refer to Fig. 26).
To clamp the drill complete with the DBS device (§ 9.1) to the rail, proceed as follows:
10.2.1)
Remove clevis (03) from its housing, and slide the entire “bar (02) - screw (04)”
assembly by hand into the “fully open” position.
10.2.2) Insert the drill, keeping it slightly inclined downwards, underneath the rail flange
near the point to be drilled (Fig. 26a).
10.2.3)
With the positioning templates
inserted between the head and
flange of the rail, bring the drill into
the horizontal position: the rail
flange must be parallel with the
base of the DBS clamping device
(Fig. 26b).
10.2.4)
Slide the “rod-screw” assembly
by hand into the "fully closed"
position so that the bar (02) is
supported on the edge of the rail
flange (Fig. 26c).
If such a position is not achieved,
use screw (04) for adjustment.
FIG. 26
CLAMPING TO THE RAIL FLANGE