Schwing SP 1800, Original Operating Instructions

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4.16 Servicing the pumping line
Wartung-Foerderleitung-EN.fm - 01.15.01 305
4.16 Servicing the pumping line
GEFAHR!
Danger!
Risk of explosion due to ruptured tubes!
Pumping lines are wear parts.
If the minimum wall strength is not met, then there is a great risk of tube breakage.
Check the pumping line regularly using a suitable wall-thickness measuring device.
If the minimum wall thickness is not met, then replace the tubes and elbows.
Under extreme conditions, daily checks may be necessary.
SCHWING’s customer service can recommend suitable measurement devices de-
pending on the pumping line material being used.
The minimum permissible wall thickness depends on the maximum possible con-
crete pressure of the concrete pump.
During operation, the operator must monitor the pumping line for leaks (water es-
caping). Leakages lead to blockages due to the concrete "bleeding" out. Stop op-
eration immediately and remedy leakage.
WARNUNG!
Warning!
If fluid leaks from the walls of a pipe or formed part, there is a great risk of
accidents due to pipe breakage.
Stop operation immediately and release pumping line by means of back-siphonage!
ACHTUNG!
Attention!
Tapping with a hammer is not recommended, because:
• Any resulting dents can lead to accelerated wear.
• It can damage the hardened layer of highly wear-resistant tubes