Installation - NetterVibration NHG Series Operating Instructions Manual

6 Installation

During installation or other work on the
hydraulic external vibrator make sure that
the hydraulic unit is switched off and
secured against unintended switching on.
Installation of hydraulic external vibrators:
Hydraulic external vibrators NHG 500 to
NHG 900 may be mounted in any position.
The hydraulic external vibrators NHG are
bolted to stiffening sections (U-section with
fastening plate).
During installation ensure tension free
fastening of the unit.
The fastening plate must be exactly flat!
Tighten the fastening screws only when the
motor flange is sitting correctly.
Please observe already during installation: During operation the
permissible temperature range must not be exceeded, see chapter 4,
"Safety". Versions for other temperature ranges on request.
For fastening use self-locking nuts or a locking fluid.
Use tightening torques according to the following table.
Higher tightening torques may cause fracture of screws or tearing of
threads. Inadequate screw connections may cause loosening by
vibration. This can cause damage to persons and material!
Recommended mean tightening torques for screws of strength class 8.8
(screws as supplied, without additional lubrication):
Type
NHG 500, 600 and 900
NHG 3000
In order to assure free operation the contamination in the oil must be
maintained at an acceptable level. The recommended max. degree of
contamination is 19/16 (see ISO 4406).
Thread/drill pattern (mm)
M 16 / 160 x 80
M 16 / 200 x 70
8
Torque
220 Nm
220 Nm