1. Connect the emergency drive hose during loading and rely on the power of other mixer trucks. Drive the mixing drum to rotate and discharge the concrete. However, if the reducer fails at the same time, this method cannot be used. The specific operation steps are as follows:
(1) Prepare an emergency drive hose and remove the connecting pipe and connector cover;
(2) Operation of the failed truck (driven truck): turn off the engine of the failed concrete mixer; loosen the fastening nut to the left; turn the knob to the right until it can no longer be screwed; remove the high-pressure hose from the motor connector;
(3) Operation of rescue vehicle (drive vehicle): set the operating handle to the neutral position; shut down the engine; remove the high-pressure hose from the high-pressure oil pipe; connect the emergency drive hose to the high-pressure oil pipe; cover the high-pressure hose of the drive vehicle with the connector cover on the emergency drive hose to prevent oil leakage. Start the engine of the rescue vehicle. Turn the operating handle of the rescue vehicle to "discharge" Position so that the concrete in the failed vehicle can be discharged. After the emergency drive, restore the two vehicles to their original state.
2. The reducer is damaged. If the reducer is suddenly damaged during operation, first discharge the concrete in the mixing drum to prevent solidification; Secondly, replace the reducer, or contact the manufacturer.
3. The plunger pump fails. When not loaded, replace with a new plunger pump to restore the normal operation of the mixing drum.
4. Leakage at the hydraulic pipe joint. Remove the connector, replace the sealing ring and retighten it.