Becker O 5.10 Operating Instructions Manual page 24

24 | O 5.10, O 5.16, O 5.21, O 5.25, U 5.40
The pump does not reach the required vacuum
Cause
Leakage in the supply line
Strainer in the intake manifold is
clogged
Resistance in the supply line too
high
Resistance in the supply line too
high
Resistance in the supply line too
high
The motor runs in the wrong
direction of rotation if the pump
does not prime correctly and emits
loud noise.
Oil level not sufficient
Water/condensate in the oil
Table 7.1: Fault tables 1
The pump does not start
Cause
Supply voltage is not present
Supply voltage is not present
Supply voltage is not present
Pump mechanically blocked
Table 7.1: Fault tables 2
Review
Visual inspection of the supply line
elements (e.g. piping, fitting, hose
clamps)
Check the strainer for dirt If this
occurs repeatedly, check the intake
line for dirt if necessary.
Check the dimensioning of the
supply line
Check supply lines for blockages,
kinks and deformations.
Check throttle elements for opening
condition
Check the direction of rotation
using the direction of rotation
arrow.
Visual inspection of the oil sight
glass during pump standstill
Check oil for condensate residues
Review
Check electrical protection devices
(e.g. motor protection switch, fuses,
emergency stop).
Check electrical connection cable
Check electrical connection
Exclude electrical causes; check
free movement on the motor fan
(with a screwdriver).
Troubleshooting
Replacing the faulty supply line
elements
Clean / replace sieve
Carry out dimensioning according
to operating instructions Further
support from BECKER Service
Remove foreign bodies from the
media line. Repair supply lines if
necessary
Open throttle elements if necessary
The motor installation must be
corrected by a qualified electrician.
The oil recommended
manufacturer must be adjusted to
the correct level.
Change the oil.
Troubleshooting
Remedy the identified fault by a
qualified electrician
Repairing the connection line
Have the identified fault rectified by
a qualified electrician
Contact BECKER service
by the