Instructions

18
9 Troubleshooting
Fault
Possible causes
Troubleshooting
Remedial Action
Does not
start
Connected wrong way
round.
See illustrations under
Chap. 4 “Structure and
Mode of Operation”
the air intake is on the cover side,
the output on the piston side.
Air supply
Check whether enough
pressure is present.
Check valve.
It must be a 3/2-way valve so that the
inlet to the device is vented.
Cover loose.
A leaky cover causes
the device to stop.
Tighten screws.
Pipe diameters
Observe minimum
diameters
see details under "Installation"
Piping between valve
und NTK too long.
Results in slow start-up
and possible stopping of
the piston in centre position.
If necessary place actuated 3/2-way
valve in front of the vibrator.
Exhaust air throttled too
much.
Throttle and silencer
Open throttle wider. Clean silencer.
Piston hangs in
extended position
O-ring on the piston
missing or too small,
Start-up pressure too
low
Fit correct O-ring,
Use starting control.
Piston braked in centre
position.
Ensure that the piston
can oscillate freely.
The piston must not be positioned in
the centre position by external
influences.
Rattling
Screw loose.
Screws on piston and
housing
Check the screws on piston and
housing.
Drop in
perfor-
mance
Lack of lubrication
Check function of the
lubricator
Set lubricator if oiled compressed air
is stipulated.
Device contaminated.
Film
Dismantle, remove film.
Wear
Check device and piston
for visible wear.
Replace component parts or device.
Configuration
Has the correct size
been chosen?
Change device size.
Pressure too low
Check pressure at the
device intake during
operation.
Increase pressure if necessary.
10 Spare parts
When ordering spare parts please give the following details:
1. Type of device
2. Description and position of replacement part
3. Quantity required
Please note: piston and housing come as a set and can only be supplied
together.