Maintenance manual | Electro-pneumatic sliding dampers
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15
4.4.
Troubleshooting
Failure
Possible causes
Proposed solutions
No electrical reaction but
there is compressed air
•
No current
•
Inverse or wrong wiring
•
Connector electrical overload
•
Make sure there is nominal current
(point 3.3)
•
Refer to the wiring diagram (point
3.3)
•
Replace the connector (point 3.3)
Blade doesn’t open although
there is electricity
•
No compressed air
•
Not enough compressed air pressure
•
Make sure there is compressed air
(point 3.3)
•
Make sure to have +/- 6 Bar
Blade doesn’t open although
there is electricity and
compressed air
•
Blade doesn’t slide in line with the body
•
Foreign object blocking the blade
•
Body and seals exert too much pressure on blade
•
Something is pulling the blade
sideways ((point 3.2)
•
Remove foreign object
•
Check the seals and body space
Compressed air leakage
•
Air hose is not correctly inserted in connections
•
Air hose is cracked or deteriorated
•
Threaded components are loose
•
Pull hose out and re-insert (point 3.4)
•
Replace air hose
•
Tighten threaded components
Blade opens too fast / too
slow
•
Air regulators are not tuned to desired position
•
Turn the air regulators to desired
airflow (point 3.7)
5.
Dismantling and recycling
When dismantling a unit, be sure to keep in mind the following important information:
•
As the unit is dismantled, set aside all still functioning parts to re-use them on another unit.
•
You should always separate the different materials depending on their type: iron, rubber, oils, greases, etc…
•
Recyclable parts must be disposed of in the appropriate containers or brought to a local recycling company.
The rubbish must be collected in special containers with appropriate labels and disposed of in compliance with the
national laws and/or local legislations in force.
CAUTION !
It is strictly forbidden to dispose of toxic wastes in municipal sewerage and drain systems. This concerns all oils,
greases, and other toxic materials in liquid or solid form.
