11
02
17
35
03
01
Detail of the
max pressure valve
FIG. 3 – COOLANT UNIT
The type SR5000 coolant unit (01) consists of a tank complete with tube and maximum pressure
valve, fi tted 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 shut-off of the lubrocoolant are controlled automatically, when drilling with
a broach cutter, by the guide bit; when drilling with a spiral bit, delivery and shut-off of the
fl uid must be eff ected 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.
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, while it must be fully opened when the pressure in the tank is low.
When using the coolant 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 fi ll tank with lubrocoolant, turn handle anticlockwise approximately 2 turns to release
handle locking mechanism. Remove handle/piston assembly from tank.
01 – Tank complete with hose
and max. pressure valve
02 – Tap
03 – Quick-coupling
17 – Vent valve
35 – Attachment valve
4. SR5000 COOLANT UNIT
(Ref. to Fig. 3)