Multiquip ST70 - Manual (Page 9)

ST-70 — PARTS & OPERATION MANUAL — REV. #4 (05/29/07) — PAGE 9
ST-70 — SAFETY INSTRUCTIONS
STABILIZER JACK
Prior to jacking check the soil conditions. If necessary, enlarge
the support foot area by placing square timbers underneath.
Keep a sufficient distance from excavations; slopes could break
away because of support pressures.
On inclines and slopes place chocks behind the wheels.
Jack the pump in such a manner that it is in a horizontal (level)
position. Check the position of the pump frequently.
CONCRETE PUMP
To avoid splashes due to suction of air, the agitator hopper
must always be filled with concrete up to the mixing shaft.
DO NOT OPERATE ANY CONCRETE PUMP
WITHOUT THE HOPPER GRILL FIRMLY IN
PLACE.
NEVER ALLOW ANY HANDS NEAR THE
SHUTTLE CRANK VALVE OR IN THE
AGITATOR HOPPER WHILE THE MACHINE
IS RUNNING.
WARNING! DANGER OF WARNING! DANGER OF WARNING! DANGER OF WARNING! DANGER OF WARNING! DANGER OF
AMPUT AMPUT AMPUT AMPUT AMPUTA A A A ATION! TION! TION! TION! TION!
Never place your hands or any part of your
body in the hopper or allow anyone else to do
so while the engine is running or when there
is accumulator hydraulic pressure or series
injury could result.
Refer to Operation section of this manual for more details.
PIPELINES
PIPELINES AND CLAMPS MUST BE OF SUFFICIENT SIZE
FOR THE PUMP’S CAPACITY.
The pipeline connections must not be opened under working
pressure. Before the pipeline is opened, pressure must be
relieved by sucking back the concrete. Secure the couplings
after the assembly of the pipeline.
When laying pipeline use as few bends as possible. Horizontal
pipelines must be adequately supported. When installing a
vertical pipeline, the best method is to use upright struts that
can be anchored to the building.
It is preferable to install pipelines within the building whenever
possible. See Operator’s Manual and “Pumping Concrete”
booklets for more information on pipeline installations.
MAINTENANCE AND REPAIR
TURN OFF THE ENGINE AND
DISCONNECT THE BATTERY CABLES
BEFORE PERFORMING ANY
MAINTENANCE OR REPAIRS.
MAKE SURE THAT THE ACCUMULATOR PRESSURE GAUGE
READS ZERO BEFORE ALLOWING ANYBODY TO PUT
THEIR HANDS INTO HOPPER OR SHUTTLE AREA.
Refer to maintenance section of this manual for more details.
CAUTION:
If the hoses or lines are blocked for any
reason, or if the lines are kinked when
starting up or during the pumping cycle, the
pump pressure could straighten out the kink
or force out the blockage. This rapid surge of
material could cause the lines to whip or move in such a manner
that it could cause injury to anyone working near the hosses
or lines.
When moving hoses from one site application to another, it is
important to walk the entire system and visually inspect for
any kinks or sharp bends in the hose. You must and straighten
them before starting or resuming the pumping operation.
Inspect the lines at all times to prevent the above conditions.