Schwing SPB 28, Operation Manual

Page: 97 / 216

GENERAL RULE S
700+smgr.fm
PAGE 67
S AF ETY M AN U AL
17.2
When power lines are in the area where the boom will be
moving to complete a pour, a spotter must be employed whose only job is to
warn the operator if the boom comes within 20 feet (50 feet above 350 Kv) of
power lines.
The spotter must understand the responsibilities assigned, and must
be able to judge a distance of 20 or 50 feet. (Figure 88.)
17.3
Keep an eye on the movements of the boom even when there
are no power lines or other wires nearby. Alert the operator if he is nearing any
obstruction or hazard. Where jobsite safety is concerned, two sets of eyes and ears
are better than one.
17.4 Never use compressed air to clear a blockage! It is unsafe
and unnecessary. If the pump pressure can’t move it, air pressure won’t either.
Stand away from the discharge and the line if anyone attempts to use compressed
air in this manner.
17.5
Do not look into the end of a plugged hose or pipe while it’s
pressurized!
DANGER
Figure 88
Use cones to assist with
identifying the danger zone
cones.eps
Use a spotter near
obstructions or wires
spotter U se.eps
When the boom will be used near
electric wires, a spotter must stand
in this position to alert the operator
if the boom enters the danger zone.
WARNING
WARNING
WARNING