Instructions

11
6 Installation
IMPORTANT
The installation of the vibrators must only be carried out by authorised, qualified
staff.
The staff has to work exclusively with tools suitable for the application.
IMPORTANT
During installation please comply strictly with the safety regulations in chapter 2
and the accident prevention rules!
Installation of the system must be performed in compliance with the local,
applicable regulations (e.g. VDE-regulations).
6.1 Fixation of the vibrator
Netter electric external vibrators can be operated in any position.
During installation the following notes must be strictly observed:
WARNING
The mounting surfaces must be abso-
lutely level ( 0.1 mm flatness fault), so
that the feet of the vibrators have full
area contact and to avoid tension in the
housing when tightening the
fastening screws. The surfaces should
also be free of any paint residues and
branding. Tensions in the housing can
cause mechanical and/or electrical
damage.
For safe fastening we recommend the use of Netter NBS screw connections con-
sisting of a screw, a special lock washer and, if applicable, a nut.
The vibrators can also be fastened with fastening screws of quality 8.8 (DIN 931
or 933). These must be secured with appropriate locking devices and checked
and retightened at regular intervals (usually monthly).
WARNING
The tightening torques can be found in
the following table. Higher
tightening torques may cause fracture
of screws or tearing of threads.
Unsuitable screw connections may
cause loosening of the vibrators by
vibration. This can cause damage to
persons and material!
Recommended tightening torques for fastening screws and nuts [Nm]
(screws as supplied, without additional lubrication):
Type of screw
M6
M8
M10
M12
M16
M20
M22
M24
Property class 8.8 [Nm]*
10
25
50
87
210
411
559
711
Stainless steel screws [Nm]
8,8
21,4
44
74
183
-
-
-
* coefficient of sliding friction µ = 0,14
Use a torque wrench and tighten the screws crosswise.