Service And Repairs; Troubleshooting - Aventics ECD-BV Serie Instrucciones De Servicio

AVENTICS | ECD-BV | R412025988–BAL–001–AA | English
7

Service and Repairs

External contamination
Damage and disruptions due to penetrating fluids
or contact with aggressive media
Penetrating fluids and use of solvents and aggressive
cleaning agents can lead to damage and disruptions.
In this case, reliable ejector function can no longer be
guaranteed.
O Only clean the ejector with a damp, lint-free cloth.
O Only use water and, if necessary, a mild detergent
for cleaning.
O Make sure that the silencer and the controller are
not soaked in fluid.
O Do not use a high-pressure cleaner.
Silencer
Damage due to excessive force
Exerting excessive force when tightening the mounting
screws can lead to damage to the housing.
O Observe the maximum torque of 0.5 Nm when
tightening the mounting screws on the silencer
module.
We recommend that you also replace the damping
plate when exchanging the silencer insert.
The open silencer can become soiled if exposed to heavy
contamination by dust, oil, etc. and thus reduce the suction
capacity. It should be replaced in this case. Due to the
capillary effect of the porous material, cleaning is not
recommended.
Spare and wearing parts
Designation
Silencer insert
"Blow-off" pilot valve for ejector
type NO/NC / "Suction" pilot valve
for ejector type NC
"Suction" pilot valve for ejector
type NO
Damping plate
NOTICE
NOTICE
Material number
R412026154
R412026285
R412026286
R412026156
8 Disassembly
System is under pressure during operation
Working on the system under pressure can lead to
injuries and damage to property.
O Depressurize all relevant system parts prior to
performing work on the system.
System is under voltage during operation
Working on the system under voltage can lead to
injuries due to electric shock or damage to the
components.
O Make sure that all relevant system parts are not under
voltage before performing work on the system.
O Connect or disconnect plug connectors only if all
relevant system parts are without voltage.
1. Make sure the relevant system part is not under
voltage or pressure.
2. Actuate the locking lever in order to disassemble the
pilot valves.
9

Troubleshooting

Malfunction Possible cause
Vacuum level Silencer soiled
is not reached
Leakage in tubing
or vacuum
line
builds up too
Leakage on
slowly
vacuum cup
Operating
pressure too low
Inside diameter of
tubing line too
small
Unable to hold Vacuum level too
useful load low
Vacuum cup too
small
CAUTION
CAUTION
Remedy
Replace silencer
Check tubing
connections
Check vacuum cup
Increase the
operating pressure
(observe max. limits)
See
recommendations for
tubing diameter
Increase the
operating pressure
(observe max. limits)
Select larger vacuum
cup
11