Brief introduction of ZF 4wg200 transmission

Brief introduction to electrical maintenance of ZF 4wg200 transmission

ZF 4wg200 gearbox is the product of ZF, a German transmission system supplier. It adopts electro-hydraulic control and fixed shaft power shift gearbox. The gears are the first four and the last three, and the supporting engine power is about 200kW. It is commonly used for 5-ton and 6-ton loaders.

The transmission system is composed of gear selector, electric control box, sensor, transmission control valve, transmission, etc. the control flow is shown in Figure 1:

Circuit faults mostly occur in gear selector, electric control box, control solenoid valve, sensor and line connection.