Schwing SPB 28, Руководство по эксплуатации

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GENERAL RULE S
700+smgr.fm
PAGE 63
S AF ETY M AN U AL
16.14
When initially priming the delivery system, when restarting
after moving, when restarting after adding or removing hoses, or whenever air has
been introduced into the line, warn everyone to stay away from the discharge until
concrete runs steadily and there is no movement of the delivery system. Personnel
should stay back a reasonable and prudent distance beyond the reach of the end
hose or point of discharge (Figure 80). Air will be in the line when first starting,
when restarting after moving, when a blockage has been successfully removed by
“rocking” the concrete, and after the line has been taken apart or opened for any
reason.
16.15
Never use compressed air to clear a blockage! The operator
is responsible for knowing the safe blockage removal procedures. It is unsafe and
unnecessary to use compressed air. If the pump pressure can’t move it, air pres-
sure won’t either.
16.16
Never stand on, sit on, or straddle a pipeline while it’s in use, or
whenever it is pressurized. Pipeline wears out with each stroke of the pump. If the
pipe bursts, you want to be to the side of it, not on top of it (Figure 81).
16.17
Expulsion hazard! (See Figure 82.) Never open a pipeline that
is under pressure. The pump must be run in reverse for at least two strokes and
then stopped before opening a pipeline. If the pipeline is pressurized with air, do
WARNING
WARNING
WARNING
pipelineguyColor.eps
Figure 81
Never straddle or sit on
a pressurized pipeline
WARNING