Troubleshooting: When pipe blockage happened, we should take immediate steps are repeated, inverted pump methods, gradually concrete pump outlet suction hopper back to re-mixing after delivery.

• 排除方法：当发生堵管时，应立即采取反复进行正、反转泵的方法，逐渐使泵出口的混凝土吸回料斗重新拌合后再输送。