Incorrect gear or stage in the vehicle's gearbox: The vehicle's engine speed is too low: The concrete pump is sucking in air:
The concrete mixture for pumping is not suitable: Failure in the control settings Heavy running of the S-pipe:
Engage the correct gear. Increase rotation speed. Check installation. Instruct the mixer driver that the funnel should always be filled, minimally, to the mixer shaft. Check the wear of the drive cylinder pistons. Use only high-quality concrete. The service department is allowed to carry out inspections and adjustments. Check the installation of the S-pipe, the condition of the actuation plate and ring for wear or mechanical damage, etc. S-pipe bearing support