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Power units and control units for use with the DD-750 HY
1. The D-LP 15 hydraulic unit
The D-LP 15 is connected directly to the DD-750 HY. The oper-
ating controls on the DD-750 HY are used, with feed controlled
by the handwheel or by the DD-MF-ML fine feed unit.
2. The D-LP 15 hydraulic unit and D-RC 15 remote control
unit
The system is operated from the D-RC 15, making use of the
DD-AF-HY hydraulic feed unit. It can be used in conjunction
with the handwheel. If necessary, the DD-AF-HY can be
switched off by pulling out the knob. Drilling can then continue
with manual feed control.
3. The D-LP 32 hydraulic unit
The DD-750 HY can be operated directly with manual feed control as described at section 1. The
DD-AF-HY automatic feed unit (if used) can be connected directly to the D-LP 32 and controlled
by the D-RC-LP32 remote control unit with a maximum oil flow rate of 60 I/min. Reducing cou-
plings are used for connecting the units in this configuration.
MF
3
/
–
5
/
coupling
4
8
FM
3
/
–
5
/
coupling
4
8
MF
3
/
–
5
/
angular coupling
4
8
FM
3
/
–
5
/
angular coupling
4
8
4. Using the DD-750 HY for drilling vertically upwards
● A suitable means of fastening (anchor) must be used to fasten
the base plate (capable of taking up a min. tensile force of
12.6 kN). Use the Hilti quick-release brace, item no. 51230, as a
setting-up aid.
● Use the DD-CP-L clamping piece, item no. 235929, to pre-
vent the motor unit and carriage from sliding down or falling off
the column when drilling in this position.
● When the DD-AF-HY automatic feed unit is used, the
pressure coupling, item no. 241634, must be fitted to the pres-
sure hose. The resulting opposing pressure permits the carriage
to be moved upwards even when the drilling motor is not rotat-
ing (no pressure from load applied).
5. Using the DD-750 HY for underwater drilling
Basically speaking, this is possible. Your Hilti specialist can provide further information.
6. Using the cross column adaptor or other modules
Please refer to the separate operating instructions for the other Hilti diamond core drilling
systems.
Printed: 22.10.2015 | Doc-Nr: PUB / 5128296 / 000 / 02
Item no. 241632, PH 58
Item no. 241633, PH 58
Item no. 241622, PH 34
Item no. 241621, PH 34
/
5
8
2x D-PH 58-10
1x D-WH 11
2x D-PH 58-10
D-RC15
1x DD-FH 2/14-10
DD-AF-HY
5
/
hydraulic hose to LP 32
8
5
/
hydraulic hose to LP 32
8
3
/
hydraulic hose to 750 HY
4
3
/
hydraulic hose to 750 HY
4
29
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