4.6-2
004.290.05-EN
- Sand in the water box of the concrete
pump:
If an increasing clogging of the water through
concrete fine particles is determined during
the regular cleaning of the water box, the
pumping pistons are worn.
If the same error occurs again in the short
term, the pumping cylinders must also be
replaced.
- Hydraulic oil in the water box of the
concrete pump
If oil streaks are determined on the water
surface or a milky emulsion in the water box
when the concrete pump is upright, the
sealing of the differential cylinder can be
worn.
- Water in the hydraulic oil
Small amounts of condensation in the
hydraulic oil box are normal and should be
drained regularly according to maintenance
schedule.
A strong increase of the water content
suggests water ingress from the outside.
A worn sealing of the differential cylinder can
also be assumed here.
- Dirt in the hydraulic oil
If external contamination (e.g. refilling from an
unclean container) can be ruled out, you
should first analyse the oil. See page 4.20-2.
The oil analysis determines the type of
clogging. In consequence thereof, e.g. the
condition of the hydraulic pumps (metal
particles) can be concluded.
If clogging through concrete fine particles is
determined, the sealing for the differential
cylinder should be checked as well.
INFORMATION
Our machines are constantly optimised in the
course of improving the specification. In
doing so, a critical focus is on the
improvement of the wear and tear.
Special components are also available for
special applications.
In case of need, please ask our Customer
Service for the optimal solution to your wear
problem.
Содержание SP 1800-D
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