Start-Up; Adjustment Of Unbalances - NetterVibration NED 605 Operating Instructions Manual

7 Start-up

During start-up of the vibrators the rules and regulations of the local associa-
tions for electrical engineering (e.g. VDE) and the applicable accident preven-
tion rules must be observed.
IMPORTANT
The vibrators must always be switched on and off at a main switch.
The vibrator must not be operated
without the cover for the unbalances in
place! The rotating unbalances cause a
WARNING
risk of injury!
The vibrators have to be adapted to your application by adjusting the unbalances.
You can directly influence vibration amplitude, centrifugal force and current
consumption, see chapter 8 „Adjustment of unbalances".
Exception: NED 605 has a fixed unbalance.
Retightening:
WARNING
Screw connections must be checked and, if necessary, retightened after 1 hour
of operation (after initial start-up) and then at regular intervals (as a rule, once per
month).

8 Adjustment of unbalances

All vibrators of the series NED (except the NED 605) provide the possibility to
adjust the unbalances.
Unless otherwise specified by you, the units will be shipped with the default
setting (100 %).
IMPORTANT
By adjusting the unbalances you can directly influence the vibration amplitude,
centrifugal force and current consumption.
On all units with adjustable unbalances these must only be adjusted symmetrical-
ly mirrored!
WARNING
The tables below show the type of unbalance and the number of unbalances per vibrator at
the default setting of 100 %.
How to proceed:
• Switch off vibrator, secure against being switched on unintentionally and check that unit is
voltage-free.
• Remove both unbalance covers.
• Loosen locking nuts and/or safety screws.
• Adjust the unbalances as required.
• Tighten locking nuts and/or safety screws.
• Fasten unbalance covers.
13