1、 Leakage of the manhole cover of the suction truck
1. The pull rod is too long. Solution: Adjust the length of the pull rod;
2. The left screw is not in place. Solution: Screw the left screw in place;
3. The sealing gasket is damaged and ineffective. Solution: Replace the sealing gasket.
2、 The vacuum gauge reading of the suction truck is too low or has no indication value
1. The speed of the vacuum pump is too low. Solution: Increase the throttle;
2. The vacuum gauge is damaged. Solution: Replace the vacuum gauge;
3. The vacuum gauge tube is blocked, and the solution is to remove the blockage;
4. The four-way ball valve is not fully opened, and the solution is to replace the rotating disc.
3、 What should I do if the vacuum pump makes abnormal noise and the temperature rise is too high?
1. The wheel sleeve is worn. Solution: Replace the wheel sleeve;
2. Impurities or debris have entered the pump chamber. The solution is to disassemble, inspect, and clean the vacuum pump, and replace worn parts.
3. Insufficient lubricating oil mixed with impurities. Solution: Add or replace lubricating oil in a timely manner.
4、 What should I do if the fuel tank of a suction truck leaks oil?
1. The sealing gasket is damaged. Solution: Replace the sealing gasket;
2. The connecting screws are loose. The solution is to tighten the bolts.
3. The amount of lubricating oil is too large. Solution: The lubricating oil surface is located in the middle of the liquid, which is a suitable position.
5、 What should I do if there is an abnormal sound from the power take-off and the temperature rises?
1. Part wear, solution: disassembly and inspection, cleaning of power take-off, replacement of worn parts;
2. The lubricating oil has impurities or insufficient quantity. The solution is to replace or add lubricating oil in a timely manner.
When encountering a malfunction of a suction truck in daily life, this article can be used as a reference for repair and regular maintenance.
