Hilti D-LP 15 Operating Instructions Manual page 24

9. Setting up, checking and operating the saw system
to approx. the 1 / position. Do not close it completely,
4
otherwise automatic control will no longer function.
– With a fuse rating of 16 A, the system can be oper-
ated at correspondingly lower power with the power
regulation valve opened by approx. 1 (one) com-
plete turn.
– If the blade sticks or stalls:
This happens from time to time. The safety system
is activated immediately (the pressure limiting valve
on the DS-TS 22 and the pressure release valve on
the D-LP 15 are set to 190 bar). This situation pre-
sents no risk to the operator or the saw system. The
operator should react by reversing the direction of
advance. The saw blade then usually begins to
rotate again. If not, the arm must be pivoted to lift
the blade out of the kerf. These steps should be tak-
en without delay. The blade drive motor should be
switched off if it takes longer than 1–2 minutes to
free a sticking/ stalled blade.
9.5
Starting the saw system and beginning the
sawing procedure
– All operating levers should be set to the O = OFF
position and the direction control levers should be
in the neutral position.
– Close the power adjustment knob
fully to the right. Open it again by turning it a
to the left. This is then the starting position for mak-
ing the guide cut and for beginning sawing.
– Switch on the water supply.
– Switch on the hydraulic unit at the green button (I)
and listen to ensure that the electric motor switches
from star to delta (Y-∅).
– Quickly move the lockable lever
drive motor from O (OFF) to the I (ON) position.
– Move the plunge control lever
direction as far as it will go. Adjust the plunge speed
regulating knob. Maximum speed
fully 1 turn. After reaching the correct depth, adjust
the knob to O (close) and move the direction control
lever to the neutral position.
– Set the advance lever
appropriate direction. Adjust the advance speed
knob. Maximum speed
Leave it set at the optimum advance setting. The
saw will cut continuously.
– Now close the power regulating knob
turn to the right) in order to obtain maximum pow-
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Printed: 13.01.2016 | Doc-Nr: PUB / 5139176 / 000 / 02
by turning it
1 / turn
2
for the blade
in the appropriate
knob opened
as far as it will go in the
knob opened fully 1 turn.
slowly ( 1 /
er. Listen and observe how the saw performs and
keep your eye on the pressure gauge.
– In practice, once the operator has found and set the
optimum power setting, he will leave control
this position and only make further adjustments
when considerable variations in the material being
cut are encountered.
– After a good guide cut has been made, subsequent
cuts can be made with the saw arm in the leading or
trailing position, as required.
– When the concrete has been cut through, lift the
blade out of the kerf while it is still rotating and
switch off the motor.
– Various operations require use of the advance
movement or saw arm pivot movement without the
blade motor running. This can be achieved by open-
ing the motor control lever only slightly, without
actually causing the blade motor to rotate. Controls
and can then be used as described above.
– At the end of the cut, bring all the levers and buttons
into the O position (switch off the blade motor slow-
ly) and switch off the hydraulic unit.
0–I–0
After finishing the cut (if using the D-LP15/DS-TS22) switch OFF at
the on/off (I–0) switch on the hydraulic power unit.
– The system should be cleaned initially at the work-
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place before it is dismantled.
at