How to repair the rotor on the generator of electric forklift?

I believe you can also see from the name that the generator is very important for the electric forklift. The generator of electric forklift is composed of rotor, stator, rectifier, front and rear end covers and transmission heat dissipation device. The rotor is an important part of the generator. If the rotor of the electric forklift generator fails, it will affect the normal operation of the whole generator. However, many drivers reported that they were unable to determine what was wrong with the rotor, let alone how to solve it. Today, the manufacturer which has forklift for sale will tell you in detail.

If we find that the slip ring surface of the rotor of the electric forklift generator has serious erosion, we need to finish turning on the lathe. If it is only slightly ablated, polish it with fine abrasive paper. Note that the surface of the slip ring should be free of oil stain. How to judge whether there is a problem with the grounding of the rotor? We need to check with the AC test lamp. If the lamp is not on, it means that there is no problem with the grounding. Otherwise, it means that there is a problem with the grounding. In order to detect whether the rotor has short circuit and open circuit fault, it is necessary to measure the resistance between two slip rings with a multimeter. Under normal circumstances, the resistance value should be consistent with the technical data provided by the manufacturer which has forklift for sale. Too large or too small can prove that the rotor has open circuit or short circuit fault.

When we detect that the rotor of the electric forklift generator has short circuit and open circuit faults, we need to take different solutions according to different situations. If the circuit is open due to the general wire end desoldering, it can be re-welded firmly. In case of serious grounding or short circuit, the winding should be removed and rewound if possible. When rewinding, the solder between the magnetic field winding lead and the slip ring should be melted off, and then the rotor shaft should be backed out with a press. After the winding is wound, it needs to be painted and dried before installation, and then the shaft is pressed in. In order to determine whether the rotor shaft has radial runout, it is necessary to use a differential table to measure. The manufacturer which has forklift for sale requires that the value should not be greater than 0.05mm. If it exceeds this value, it should be corrected.

The above is the specific method to repair the rotor of the electric forklift generator. I believe that if the generator fails again, the driver can find out whether the fault is caused by the rotor and solve it smoothly. However, the rotor is a small precision part after all. If it still cannot be properly repaired, we recommend that you seek the help of professional maintenance personnel or consult the manufacturer which has forklift for sale.