9 servicing warning, Warning – Elmo Rietschle G-BH9 User Manual
Page 25
Servicing
© Gardner Denver Deutschland GmbH
25 / 32
610.44434.40.000
9 Servicing
WARNING
Improper use of the unit can result in serious
or even fatal injuries!
Have you read the safety precautions in Chapter
1, "Safety", Pg. 3 f.?
Otherwise you many not carry out any work with
or on the pump-motor unit!
WARNING
Improper use of the unit can result in serious
or even fatal injuries!
All maintenance work on the pump-motor unit
must always be performed by the Service
Department!
Maintenance work on the pump-motor unit may
only be conducted by the operator itself when
the related maintenance manual on hand!
Inquire with the Service Department!
9.1 Emptying/Rinsing/Cleaning
Before any maintenance/servicing work, empty,
rinse and clean the outside of the unit.
Empty unit with air and rinse until all residues
have been removed.
Clean the outside of the unit with compressed
air.
–
Wear gloves and protective safety glasses.
–
Secure the surrounding area.
–
Clean the entire surface of the unit and
exterior fan with compressed air.
9.2 Repairs/troubleshooting
Fault
Cause
Remedy
Carried
out by
Motor does not
start; no motor
noise.
At least two power
supply leads
interrupted.
Eliminate interruption by fuses, terminals or
power supply cables.
Electrician
One power supply lead
interrupted.
Eliminate interruption by fuses, terminals or
power supply cables.
Electrician
Open vacuum pump/compressor cover,
remove foreign body, clean.
Service*
)
Impeller is jammed.
Check or correct impeller gap setting if
necessary.
Service
Impeller defective.
Replace impeller.
Service*
)
Motor does not
start; humming
noise..
Rolling bearing on drive
motor side or vacuum
pump/compressor side
defective.
Replace motor bearing or vacuum
pump/compressor bearing.
Service*
)
Winding short-circuit.
Have winding checked.
Electrician
Reduce throttling.
Service*
)
Motor overloaded.
Throttling does not
match specification on
rating plate.
Clean filters, mufflers and connection pipes if
necessary.
Service*
)
Protective motor
switch trips
when motor is
switched on.
Power
consumption too
high.
Compressor is jammed. See fault: "Motor does not start; humming
noise." with cause: "Impeller is jammed.".
Service*
)