Instructions
Type 
Mounting 
Thread 
Tightening 
Torque 
Thread
Supply 
Line 
max. 
Length 
Supply 
Hose Size
Thread 
Discharge
Line 
Discharge 
Hose Size 
Water 
proof *
Temperature 
Range 
NTS 120 HF, NF 
M 8  20 Nm  G 1/8×6 NW 6 G 1/8  NW 8  yes  5°C to 60°C
NTS 180 HF, NF 
M 10  18 Nm  G 1/8×6 NW 6 G 1/4  NW 8  yes  5°C to 60°C
NTS 250 HF, NF 
M 12  20 Nm  G 1/8×7 NW 6 G 3/8  NW 8  yes  5°C to 60°C
NTS 350 HF, NF 
M 12  30 Nm  G 1/4×7 NW 6-10 G 3/8  NW 8-12  yes  5°C to 60°C
*) Underwater operation requires air discharge to the atmosphere. 
The air supply is located on the side 
of the housing (imperial thread). Do 
not use fittings with threads longer 
than specified (see table) e.g. no tubes with male 
thread. The housing may thereby be deformed – 
the piston will seize. 
The compressed air supply must be 
securely fastened. 
The air is discharged via the silencer. 
The housings have a metric mounting thread in 
the base. 
 Start-up and Operation 
The  start-up  of  the  vibrator  is  possible 
immediately after the correct installation. 
Make sure that the pneumatic system is able to 
supply the air quantity specified in the operating 
instructions. Otherwise the vibrator will not be 
able to reach the technical specifications. 
Permissible operating conditions: 
Ambient temperatures 
The permissible temperature range 
of 5°C to 60°C must not be 
exceeded or fallen short of during 
operation. 
At ambient temperatures ≤ 10°C higher start-up 
pressures may be required (≥ 2 bar). 
Ensure that the compressed air supply system 
is able to meet the air consumption value 
specified in the detailed operating instructions. 
Otherwise the vibrator will not be able to 
achieve the technical specifications. 
Amplitude adjustment: 
The amplitude of vibration can be adjusted by 
regulating the exhaust air using an optional 
throttle. The exhaust throttle can be mounted 
directly to the vibrator or integrated in the air 
discharge line. 
Checklist for Assembly and start-up: 
1.  Install the unit carefully. 
2.  Secure the fastening screws. 
3.  Install maintenance unit (filter, regulator), 
valve and supply line. 
4.  Install lubricator and adjust oil flow (2 to 6 
drops/h). 
5.  Check: Are fastening screws secured? 
6.  Have notes on hose length and nominal 
width been observed? 
Maintenance 
NTS vibrators can be cleaned with a water jet 
from outside. Then operate the vibrator for a 
short while after. 
Dirty  compressed  air  causes 
clogging of filter and silencer. 
If necessary empty the filter, clean 
filter element and silencer (wash out). 
The use of a mist lubricator requires that it works 
correctly (are the contents decreasing? drops/h?). 
Top up oil regularly. 
Screw connections must be checked 
and  retightened  after  1  hour  of 
operation and then at regular inter-
vals (normally every month). 
For maintenance instructions and trouble shooting refer to the operating instructions. 
Waste disposal: The parts must be disposed 
off according to valid regulations, depending on 
the material. 
All  units  can  be  disposed  of  through  your 
supplier. The valid waste disposal prices are 
available on request.  



