Safe Points of Using Concrete Mixer

1. New machine should be as requested in the instructions for use before using, survey held and necessary testing run to systems and parts.
2. The parking place of mobile concrete mixer must choose smooth and massy field, and should have good water draining measure around.
3. After concrete mixer in its position, lay down their support to jack up the rack, and make the tires off the ground. When using time relatively long area, should apply underlay wood set up the machine, remove the tire and draw bar, and make the machine level.
4. When the hopper in the lowest position, should add a bed cushion between hopper and ground.
5. Check up the pressure and power, the pressure rang not exceed 5% of concrete mixer electric equipment regulation.
6. Have the no-load test before working, and observe the blades of the mixing drum rotation direction whether consistent with the direction shown by the arrow. If opposite directions, you should change the electrical wiring. Reverse discharge concrete mixers should be positive and negative rotation for a few minutes, to see whether have impact and judder. If having abnormal noise should check out.
7. After the drum and blades well running, it can have hopper lifting test to observe the clutch and brake whether flexible.
8. Check and revise the pointing of water system whether accordance with actual water yield. If the error exceeds 2%, it should check pipeline whether leakage, and adjust the throttling valve in necessity.
9. Joined the mixture at a time, must not exceed 10% of rated value of the concrete mixer. To reduce viscosity, feeding should be in the order of coarse aggregate, cement, sand, or sand, cement, or coarse aggregate.
10. When hopper lifting, anyone strictly prohibit staying in or through the hopper. If it is necessary in the hopper, should be after the hopper lifting and hang insure hook or take effective measures.
11. Repair, adjustment or refueling shall not be carried out in the working, and prevent sand, stones and other materials from falling into the machine transport system.
12. The mixing process should not be shut down, if must be shut down, starting again should dismount loading first, and shall not be starting with loading.