English - Version - Putzmeister Akademie

Safety manual
Concrete delivery and placing machines
2.6.4 Opening delivery lines
You must not open or tap delivery lines while these are
pressurized. Concrete exiting under pressure can cause injury.
The concrete column must be depressurized by reverse pumping
before the delivery line is opened. Never work bending directly over
the coupling.
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2.6.5 Clearance to delivery
lines
2.6.6 Fastening delivery
lines
2.6.7 Continuation delivery
lines
No–one should remain in the vicinity of separate delivery lines
during pumping operations. Cordon off the danger zone. If it is not
possible to place a large enough cordon around the danger zone,
the delivery line must be covered by suitable means.
Delivery lines, in particular riser lines which are not laid along
placing booms, must be securely fastened in order to transfer the
forces generated in them into the structure or other structural
members. The lines must be laid so as to avoid kinks, sharp bends,
stresses and damage during pumping operations.
A continuation delivery line connected to the placing boom must
not exert a load on the boom.
01/2011 Rev08 EN
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