Schwing SPB 28, Operation Manual

Page: 102 / 216

GENERAL RULE S
PAGE 72
700+ smgr.fm
S AF ETY M AN U AL
17.21
Do not allow the boom hose to get lower than two feet above
the deck to prevent the boom hose from hitting the feet of the hose-person, and to
prevent the hose opening from being blocked by the deck, which could cause the
hose to whip.
17.22
Never stand on, sit on, or straddle a pipeline while it’s in use, or
whenever it is pressurized (Figure 96). 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.
17.23
To avoid confusion and conflicting signals, only one person
should act as a signalperson (give operational signals to the pump operator).
However, the operator is trained to obey a stop signal from anyone and everyone.
Before the pour begins, the hose-person, the operator and the
signalperson should agree on hand signals (Figure 97)
WARNING
WARNING
NO!
pipelineguyColorSM.eps
Figure 96
Never straddle or sit on a
pressurized pipeline
WARNING
WARNING
(2 taps)
acpahandsignew.eps
9.
BOOM DOWN
10.
BOOM LEFT
11.
BOOM RIGHT 12.
OPEN OR
EXTEND BOOM
13.
CLOSE OR
RETRACT BOOM
8.
BOOM UP
6.
ADD WATER
4-GALLONS
7.
ALL DONE
CLEAN UP
5.
RELIEVE
PRESSURE
4.
LITTLE BIT
3.
STOP PUMP
2.
SLOW PUMP
DOWN
1.
START PUMP
SPEED UP
14.
STOP BOOM
Figure 97
ACPA recommended hand signals