Connect the emergency drive hose during loading, relying on the power of other mixing trucks. Drive the mixing drum to rotate and discharge the concrete. However, if the reducer malfunctions simultaneously, this method cannot be used. The specific operation steps are as follows:

1，准备好一根紧急驱动软管，卸下接管和接头盖；

1. Prepare an emergency drive hose and remove the connecting pipe and joint cover;

2，故障车（被驱动车）的操作：将故障混凝土搅拌车的发动机熄火；将紧固螺母朝左旋松；再将旋钮朝右旋转，直到不能再旋为止；将高压软管从马达接头处卸下；

2. Operation of the faulty vehicle (driven vehicle): turn off the engine of the faulty Concrete mixer; Loosen the fastening nut to the left; Rotate the knob to the right again until it can no longer be turned; Remove the high-pressure hose from the motor connector;

3，救援车（驱动车）的操作：将操作手柄于空档位置；将发动机熄火；将高压软管从高压油管处卸下；将紧急驱动软管接到高压油管上；用紧急驱动软管上的接头盖将驱动车的高压软管盖起，以防漏油。启动救援车的发动机。将救援车的操作手柄拨“出料”位置，使故障车内的混凝土排出。紧急驱动完毕后，使两车各自恢复原状。

3. Operation of rescue vehicle (drive vehicle): Set the operating handle to the neutral position; Turn off 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 driving vehicle with the connector cover on the emergency drive hose to prevent oil leakage. Start the engine of the rescue vehicle. Move the operating handle of the rescue vehicle to the "discharge" position to discharge the concrete inside the faulty vehicle. After the emergency drive is completed, restore each vehicle to its original state.

4，减速机损坏。如在工作中出现减速机突然损坏，需将搅拌筒内的混凝土排出，以防出现凝固现象；其次再更换减速机，也可联系生产厂家。

4. The gearbox is damaged. If there is sudden damage to the gearbox during work, it is necessary to first discharge the concrete from the mixing drum to prevent solidification; Secondly, to replace the gearbox, you can also contact the manufacturer.

5，柱塞泵发生故障。非装载时换上新的柱塞泵，使拌筒恢复正常运转。

5. The plunger pump has malfunctioned. Replace with a new plunger pump during non loading to restore normal operation of the mixing drum.