Which is more risky pumping upward or pumping downward?
If the pump is setup closer than the safe distance, there is a danger of overturn the machine. Do you know what may happen to the outriggers if they are opened partially or none when the pump works close to a pit with fully unfold boom? They cannot withstand the additional forces and may break. And do you consider any precaution while working next to a pit with a big boom? Or do you completely trust your operator and leave the results to fate?
Setting the machine on the edges of pits, trenches and gaps away always cause a danger. This is frequently encountered in construction sites and more common in large projects during pumping down with big booms. The general rule here is defined as one-to-one or minimum 2 meters. However, while pouring the concrete down with big booms often this is impossible.
What should the operator do and do not in this case? Think that there are some additional hoses used out of rules in order to increase the total length. The boom is full of concrete up to the end of the last hose. And the operator bends the hose. Then calculate the effect of extra load in the boom. And if he tries to move the machine a few meters with open boom and full of concrete. Unfortunately, pump operators have difficulties in such applications and the pumps are operated without static and dynamic calculations. It is obvious that this job cannot be left to the operator alone!
On the other hand, in case of an accident who will be the responsible by law? Possible justifications and claims may be as follows:
-The site chief says that the responsibility of the pump belongs entirely to the operator.
-The insurance company justifies that the safe distance is written on the machine. And it doesn’t make the payment.
-Does the operator automatically accept all warning signs indicated on the machine?
-Can the RMX company claim that this distance limitation clause is not specified in the policy even it is written on the machine?
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