Putzmeister 210109379, Operating Instructions Manual

Page: 225 / 434

Pumpingoperations
63
AP07_029_0905EN
It is particularly important that the machine operator at the concrete
pump and the concreting gang working at the placement site can
communicate with each other if accidents are to be avoided when
pumping. Communication is particulary important in long
− distance
and high − rise pumping where the machine operator cannot see the
site of concrete placement. Communication may be via unambiguous
and non
− interchangable:
− acoustic signals such as a horn, two − way radio, field telephone
etc.
− optical signals such as light signals, hand signals etc.
− a combination of optical and acoustic signals
Suggestions for the most important hand signals are made in this
chapter. They are based on DIN24081, DIN33409 and guideline
RI/08.90/2 issued by the German Construction Employers’ Liability
Insurance Association, amongst other guidelines. The direction of
movement is specified from the machine operator’s direction of view.
Extend both arms outwards
and move up and down
quickly.
10000308
Place a fist on the helmet.
10000307
6.2 Hand signals for
pumping
EMERGENCY STOP
Slow