Considerations for concrete placing boom

• After the completion of concrete placement,concrete placing boom must use products and clean water will clean the pump tube, each time pumping water when cleaning, spray balls must use scales should not be used instead of other objects, after cleaning, lifting weight, hanging fabric shaft after work to the next location, once it is installed, into the stack, repeating previous work.
  concrete placing boom are not allowed to take a long, take a long, in addition of fixed radius greater than promised work required support.
  Outlet when changing the position, wrapped in a burlap sack will be exported, avoiding concrete falling on the ground, to another position and then unlock.
  Prepare concrete placement of signal cables and radio, dual controls, columns, walls, concrete pouring, it make sure the lamp is pump stop, halt State stopped pouring required advance 4S stopped, turn off the light at the front desk, communication must assign, nighttime construction, control must match on flashlights, see concrete level.
  Test control concrete outlet with rope, and lever arm bent in the Middle split, running at its maximum effective range for a week.
  Concrete pump pipe, at the time of taking over, it is necessary to fully check that the tubing is cleaned, an interface must use rubber gaskets. Concrete pump tube should be checked after tightening.
  Four-foot boom with mooring rope fixed mooring rope should not be too tight, mechanical deformation of the interval should be left out of the boom.
  Material pole mounted on the frame to the legs with a tube of compaction, can be installed on the floor goes.
  Placing boom and counterweight, asked the boom among the necessary beats 200~300mm, upholstery sleeper or wooden foot surface, check whether the cloths Rod shaft vertical.
  Erection of boom position frame and check acceptance, calculating bearing capacity of parts of the body, double buckle securing, Foundation of stable situations.
  Inspection boom tighten all bolts, hinges are normal.
  concrete placing boom is straight and see if it is in the case of no counterweight is straight. (Boom under normal circumstances consider as not counterweight can be straight, because when the lifting boom, General tower crane boom and counterweight cannot be lifted, lifted up again and have to install).