Start-Up And Operation - NetterVibration NTP Series Operating Instructions Manual

7

Start-up and operation

Observe the safety instructions in Ch. Safety, from page 5 on.
Please refer to Ch. Technical data, page 7 for permissible operating condi-
Permissible
tions.
operating
conditions
Regulation of The frequency of the NTP should be set or regulated with the pressure
frequency regulator of the maintenance unit. Use a 3/2-way valve.
The frequency is reduced by lowering the air pressure before the NTP.
The centrifugal force is hereby also reduced. At the same time the ampli-
tude remains almost constant.
Regulation of If required, install a throttle valve in the exhaust air line in order to regulate
amplitude the amplitude of the NTP by throttling the exhaust air.
Important: Reduced cross-sections already throttle (observe the nominal
diameter).
By throttling the exhaust air, the centrifugal force is reduced. The frequen-
cy hereby remains almost constant.
Important: Reduce the amplitude only up to approx. 50 %. This can cause
start-up problems if below.
Setting mist Set the mist lubricator to the smallest safely adjustable number of drops
lubricator while the NTP is running. Notice: The NTP is ready for operation only af-
ter adjustment and correct functioning of the mist lubricator.
Netter
Recommend-
ed number of mist lubricator depending on the type of NTP:
drops
NTP ...
18, 25
32
48
Check that the following steps have been carried out:
Checklist
start-up
Screw connections checked before start-up?
Desired frequency set on pressure regulator?
Desired amplitude set by throttling the exhaust air?
Mist lubricator set?
After one hour of operation:
Hose supply connections as well as fastening screws checked,
retightened, if necessary?
Then follow the maintenance plan.
14
Vibration recommends setting the following number of drops on the
Start-up and operation
Number of drops
1-2 drops/2 min
1-2 drops/min
2 drops/min