English - Version - Putzmeister Akademie

Safety manual
Concrete delivery and placing machines
2.4.4 Supports
The placing boom must not be raised until the machine has been
supported in accordance with the Operating Instructions. There is
otherwise a risk of the machine toppling over.
Swing out and telescope the support legs to their end positions in
sequence. Intermediate positions are prohibited to guarantee stability.
Exceptions are machines which have been equipped by the
manufacturer with a device which allows secure erection with a reduction
in support. Check the corresponding notes in this regard in
the operating instructions.
Lock all supports mechanically, if this is provided for in the design.
Close all shut–off valves in the support hydraulics. Leaks can
cause the supports to sink on one side.
The machine must be made level in all directions. The maximum
permitted deviation from the horizontal is 3_. Greater deviations
from the horizontal overload the slewing gear for the placing boom
and jeopardize the stability of the machine.
wz0105
Check stability regularly during operation. The elastic distortions to
the machine frame occasionally occurring under extreme positions
of the placing boom (one support foot lifts from the ground) must be
compensated for by resetting the support cylinders until all support
feet are firmly placed on the ground.
01/2011 Rev08 EN
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