Mini roller compactor failure causes and repair solutions

 The mini roller compactor has the advantages of convenient operation, small size, light weight, suitable for compaction operations in narrow areas and places where large road rollers cannot be driven. It has been widely used, but due to factors such as large engineering workload and long working hours, When mini road roller is performing compaction work, it is inevitable that there will be some failures. If it is not solved in time, it will not only affect the work efficiency but also delay the construction period.

Engine won't start

Causes of failure: fuel exhaustion; fuel filter blockage; fuel pipe leakage; battery leakage or poor connection.

Solution: Fill the fuel tank with fuel; replace the filter; check whether the battery is deficient, charge it in time if it is deficient, replace the battery with a new one, and check the circuit.

Brake failure

The cause of the failure: there is dust and dirt on the friction plate, or it is damaged; there is a problem with the brake connection.

Solution: Remove the dust and dirt on the friction plate, and replace it with a new one if it is damaged; check the connector line failure and repair it.

Under pressure

The cause of the failure: It may be due to the blockage of the pilot relief valve of the small roller compactor that the control oil has no pressure or the hydraulic pump has no pressure; the amount of fuel is insufficient; the relevant parts are worn out and the coordination fails.

Solution: Check whether the overflow valve is blocked, and deal with it in time; replace the fuel with good quality; check the wear of related parts and repair it in time.

The road roller machine cannot change speed when walking

The cause of the failure: The variable motor mechanism cannot change speed because the displacement control mechanism of the variable motor cannot be opened normally or has a malfunction.

Solution: Check whether the walking speed control switch is in good condition, whether the variable speed solenoid valve is normal, and whether the circuit is unobstructed at the solenoid valve part to ensure that the solenoid valve can be opened smoothly and connected to the variable speed control oil circuit to ensure that its pressure is normal (the pressure is complementary Oil pressure).

When troubleshooting the road roller machine, be sure to perform a good maintenance for every failure so that the machine can take advantage of its performance. When mini road compactor is in operation, it is necessary to take a proper rest and allow it to be adjusted well, so as not to cause greater wear and tear of the road roller due to long-term operation, thereby reducing its life. If you have any other questions about mini road roller, you can call us and we will do our best to serve you.