Putzmeister Concrete Pump Repair Manual PDF

Concrete pump, also known as concrete pump, is a kind of machinery that uses pressure to continuously transport concrete along the pipeline by using the pump body and the conveying pipe. This kind of machinery is widely used with the development of the construction industry, like Putzmeister concrete pump, because of its displacement, conveying distance, head, product type, diversity of conveyable materials and other characteristics and advantages, so that pump putzmeister company maintains many world records in the field of hydraulic piston pumps, but also makes its products widely used in the market. In the process of use, it may cause some problems due to improper operation, the following will be introduced by Elephant Fluid Power to you about some common faults about concrete pumps and troubleshooting methods.

Fault 1: The main motor cannot start or cannot reach the speed

Exclusion method:

1.If the main motor cannot be started, you should first check whether QF1 is closed, if QF1 cannot be closed, you should check the circuit and eliminate the fault.

2. If the start button is pressed, the electricity and the casing run, but the specified speed cannot be reached, the power supply can be checked at this time. In addition, if the operation is not possible, it will also cause difficulty in starting, at this time it is necessary to check whether the water pump, whether the operation handle is in the middle position, if it cannot be started, check whether the solenoid valve that controls the pressure of the main oil pump is normal, and should ensure that the main oil pump is in a state of discharge when starting

Fault two: Press the pumping button, the concrete conveying cylinder does not work or works weakly

Exclusion method:

1. First check whether the hydraulic oil level is normal, if the oil level is insufficient, it should be added to the specified position; Start the motor again to observe whether the vacuum gauge reading is normal.

2. In the shutdown state, turn on the main power supply, press the pumping button, check whether the solenoid valve that controls the pumping is operating, if it is abnormal, it should be further determined whether it is a line failure or a damaged solenoid valve coil or a stuck spool. If normal, check the operation of the hydraulic directional valve.

3. If the main cylinder does not operate when the reversing position, it can be judged that there may be a problem with the stroke switch.

4. Check the pressure of the main pump system, if the specified value is not reached, the relief valve and the main oil pump should be checked.

5. The temperature of the hydraulic oil is too high, resulting in increased leakage, decreased oil pressure, and weak work. The heat dissipation system should be overhauled to ensure that the heat dissipation effect is good.

Fault three: The main cylinder does not reverse

Exclusion method:

If the main cylinder does not reverse, check the stroke switch and its related lines; If normal, check whether the solenoid valve and hydraulic directional valve that control the operation of the master cylinder are stuck. In addition, check whether the hydraulic oil pressure of the control hydraulic directional valve is sufficient, if it is insufficient, it cannot push the valve core to move, and the cylinder will not be reversed.

If your hydraulic pump or pump parts are missing or need to be replaced, take a look at Elephant Fluid Power. We are a company specializing in the production of hydraulic system accessories, after a long period of production and business growth, our technical team has accumulated rich experience. The pumps and parts we manufacture are compatible with the original pump truck hydraulic parts system, regardless of quality or performance. And we have our own factory, fast delivery and intimate after-sales service is our cooperation basis, if you are willing to cooperate with us, then we believe that we will become your long-term partner with high-quality products and perfect after-sales service!