Schwing SP 1800-D, Оригинальная инструкция по эксплуатации

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3.38-3
005.148.02-EN
- Check the operating pressure of the
concrete pump while pumping concrete.
INFORMATION
The hydraulic pump of the concrete pump
system is equipped with a pressure cut-off.
This swivels the pump back before the
maximum operating pressure set on the
pressure relief valve (PRV) is reached.
Also see the “Check pressure settings”
chapter.
- Open the shut-off valve (7) (Fig. 5) and
release the operating pressure on the
pressure gauge (6).
If the operating pressure reaches the setting
values of the pressure cut-off, pumping must
be slower, a pumping line must be laid with
larger cross section or the pumpability of the
concrete must be improved.
For "Pmax", see hydraulic switching diagram or
data sheet.
The pressure relief valves set in the factory
may not be altered.
Reconnect the concrete pump to rod-sided
application, when higher performance is
required. See the “Working operation concrete
pump” chapter.
In order to protect the pressure gauge from
spikes in pressure, close the shut-off valve (7)
immediately after the test.
- Immediately prevent clogging at the base
by pumping the concrete in reverse:
- Stop the agitator and concrete pump.
- Set the agitator to "reverse" and the
concrete pump to "suction".
Do not forget to switch the agitator. The
returning concrete could otherwise damage the
agitator.
Should the clogging not be resolved with
reverse pumping, switch off concrete pump and
fix the problem.
- Monitor the agitator.
In the event of, for example, jamming caused
by rocks (maximum pressure), switch agitator
briefly to reverse running.
Fig. 5