Troubleshooting - NetterVibration NHG Series Operating Instructions Manual

Maintenance and repair on hydraulic external vibrators can be performed by
Netter GmbH.
During installation or other work on the
hydraulic external vibrator make sure that
the hydraulic unit is switched off and
secured against unintended switching on.
Check the fastening and the hose connections as well as the oil level
and the filter units on the hydraulic unit at regular intervals – ideally
every month.
When servicing the unit please observe the safety regulations.
Important: All maintenance work must be performed in a clean
Avoid environmental hazards caused by hydraulic oils. When working
on hydraulic components avoid spillage of oil. Collect running out oil in
suitable vessels and return it for waste disposal (supplier).

9 Troubleshooting

Symptom
No power.
The eccentric housing
is filled with hydraulic
oil.
Premature wear
motor shaft seal.
Premature wear of the
vibrator bearing.
and dust protected environment.
Possible cause
Too high pressures in tank or
leak oil line.
(See chapter
pressure and temperature)
on
Too high speed, i.e. too high
flow volume.
(See chapter 2 Technical
Data)
Too high speed, i.e. too high
flow volume.
(See chapter 2 Technical
Data)
Corrective action
Replace the motor shaft
2 operating seal.
Replace the motor shaft
seal.
Replace the bearings the
eccentric weight.
13