When the trailer is towing the concrete trailer pump, the pump should be stubbed up, the guide wheel must be fully retracted and not in contact with the ground, the speed of the trailer should be moderate, the speed should not be greater than 15 km per hour, and the cable should be tied firmly.
Operation of the support to retract the pump
(1) Operate the lifting handle of the guide wheel, make the guide wheel retract upward, the front section of the bottom frame descend, and the whole vehicle tilt forward.
(2) Put down the rear outrigger, insert the outrigger positioning pin, and lock the locking pin of the positioning pin.
(3) Operate the lifting handle of the guide wheel, make the guide wheel downward, the front end of the bottom frame up, put down the front legs, and insert the positioning pin.
(4) After the above operation, keep the pump roughly horizontal, land the four legs at the same time, make sure the tires are not loaded, and finally retract the guide wheel.
(5) Collect the pump to operate the guide wheel in the opposite way to retract the legs.
(6) If necessary, use a jack to assist in supporting the collection.

1. Check the towing pump in position, the towing pump should be installed on roughly horizontal, solid ground, four legs at the same time on the ground, to ensure that the tires do not carry, the ground of the site is soft, to prevent sinking need to add a wooden square or board to fix.
2. Check the laying and connection of each pipeline, check whether the straight pipe is in a line, whether the piping is reasonable, and whether the joints of each pipe mouth are tight.
3. Check whether the water tank and hopper are filled with water.
4. Check whether the hydraulic oil tank oil level, grease pump oil tank oil level is filled, and should be filled when it is insufficient. Pump oil manually, check whether the lubrication point oil supply is normal.
5. Before starting the motor, check whether the hopper screen and bottom door are closed and whether there are foreign objects in the hopper.

1. Before pumping concrete, pump water to lubricate the pipeline, check whether there is sealing and water leakage at each pipe card, and then pump mortar to open the pipeline.
2. After confirming that the mortar is open, mix the remaining concrete in the car fully before pumping normally.
3. When pumping concrete, pay attention to the slump of the concrete and contact the technical department when abnormalities are found. Reject unreasonable excess water addition phenomenon.

04. Trailer pump work process finished

1. After confirming the work of pumping concrete, open the positive pump to airlift 3-4 strokes, discharge the residual concrete, stop the positive pump, clear the residual concrete in the hopper and S pipe with tools such as shovel and rake, open the lower discharge door of the hopper, flush the concrete inside and outside the hopper with water, and close the material door after clearing.

2. Fill the hopper with water, start the positive pump to pump water, the remaining concrete with the pump out, water discharge is completed, open the hopper door, start the anti-pump, not pumped out of the stone, sand with the water flow, close the hopper door, airlift 20 minutes, continue to supply grease, until the lubrication point out of oil. After cleaning, turn off the motor, turn off the power, cover the pump.

3. Discharge the water in the tank, especially in winter, and observe whether the water is turbid.

4. Clean and dry all parts of the body. There should be no concrete block, mortar, mud and other dirt in all parts of the pump body.

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