Cembre LD-41P Operation And Maintenance Manual page 9

13.1.2) Removal of metal residues from the
crankcase
When the drill is positioned as shown in Fig. 26
unscrew the cap with magnetic insert (28) on
which any metal residues present in the oil will
have collected. Carefully clean the magnetic
insert with a clean cloth and screw it back into
the appropriate housing.
FIG. 26 – REMOVAL OF
METAL RESIDUES
Every 50 hours of operating
13.1.3) Checking of screws.
– Check and re-tighten all screws where necessary.
13.1.4) Lubrication (Ref. to Figs. 33 and 34)
– Lubricate the spindle support housing by means of the appropriate lubricator (25), the
screw of the DBG-F2 clamping device.
13.1.5) Cleaning of coolant fi lter (Ref. to Fig. 27)
The coolant system of the drilling machine is provided with anti-impurity fi lter; should a
decrease of the fl ow of the lubrocoolant be noticed, it may be necessary to clean it in the
following way:
– Using a 14mm key, unscrew the coupling (02).
– Extract the fi lter and clean it carefully.
– Reassemble the fi lter into the coupling (02) as shown in the Fig. 27, fully tighten the
coupling.
28
anti-impurity fi lter
02
FIG. 27 –
CLEANING OF COOLANT FILTER
The type SR5000 coolant unit consists of a tank complete with tube and maximum pres-
sure valve (01), 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 drill-
ing with a broach cutter, by the guide bit; when drilling with a spiral bit, delivery and
shut-off of the fl uid 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.
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 pres-
●
sure 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
FIG. 3 – COOLANT UNIT
27 8
4. COOLANT UNIT TYPE SR5000
Detail of the
max pressure valve
02
35
03
01 – Tank complete with hose
and max. pressure valve
02 – Tap
03 – Quick-coupling
17 – Vent valve
35 – Attachment valve
17