Hilti DD-750 HY Mode D'emploi page 26

General description and technical data for the DD-750 HY
level of exposure to vibration should also take into account the times when the tool is switched
off or when it is running but not actually doing the job. This may significantly reduce the exposu-
re level over the total working period. Identify additional safety measures to protect the operator
from the effects of vibration such as: maintain the tool and the accessories, keep the hands
warm, organisation of work patterns.
● 4-speed gearing:
The gears and drilling dia. ranges
indicated correspond to a core bit
peripheral speed of approx. 3–4 m/s.
● With the D-LP 32 hydraulic unit, fine speed adjustment is possible, allowing optimum results
● Overload protection is provided in the form of a hydraulic pressure limiting valve (170 bar).
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Printed: 22.10.2015 | Doc-Nr: PUB / 5069605 / 000 / 03
➊
5 / ʺ hydraulic coupling
8
➋ On/off lever
➌ Gear change lever
➍ Drive shaft
➎ Water connection
➏ Quick-release mount
➋ 152–300 mm dia.
➍ 52–112 mm dia.
➊ 300–750 mm dia.
➌ 77–152 mm dia.