15
9 Troubleshooting
Fault Possible cause Remedy
No starting Silencer Clean the silencer
Air supply Check pressure on unit! Pressure high
enough? Check valve. A 3/2-way valve
is strictly required, so that the supply
line to the unit is ventilated.
Cover loose
leaking cover will cause standstill of
the vibrator Tighten the screws.
Line cross-sections too
small
Observe minimum cross-sections, see
specifications under „Installation“
Line between valve and
NTS too long
Causes slow starting and possible
standstill of piston in central position.
If necessary, install a pilot-controlled
3/2-way air valve in front of the vibrator
Exhaust air excessively
throttled
Open the throttle further. Check
silencer (sufficient air flow?).
Grommet has too long
thread
This may deform the housing (if this
has already happened, return the unit
to Netter GmbH!).
Spanning due to
installation
Check whether the contact surface is
even.
Rattling Screws loose Check the fastening screws
Power drop No lubrication Check function of lubricator if
lubricated compressed air is specified.
Unit soiled Dismantle, remove dirt film.
Wear Check unit and piston for visible wear
(if wear is found return the unit to
Netter GmbH!). See also note in
chapter 10 „Spare parts“.
Design: Check size of unit. Has the size been
chosen correctly?
Pressure too low Check the pressure at the inlet of the
unit (!) during operation. If necessary
increase the pressure. Line cross-
sections OK?
10 Spare Parts
When ordering spare parts please give the following details:
1. Type of unit
2. Description of spare part
3. Required quantity
Please note: Piston and housing are matched to each other and can
only be delivered together.
In order to assure compliance with the technical performance data
synchronously operated vibrators should always be replaced together. If this
is neglected, the new vibrator will adapt its power to the weaker vibrator.
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