The excavator travel motor generally use high-speed motors plus planetary reducers or cycloidal pin reducers. The PC400-7 final drive assembly is equipped with a high-voltage automatic variable device. When the high-speed gear is engaged, the circuit is connected to the manual shift port to oil, pushing the shift valve to the left to make the motor become a small displacement; if the running resistance is increased, the oil pressure is raised to When the value is set, the oil pushes the shift valve to the right and the motor automatically changes to a large displacement low speed gear to increase the torque. Therefore, the motor can automatically change the gear as the walking resistance changes.

Frequently asked questions：

1.Is this PC400-8 travel motor assy can be used for my excavator?
Please check the suitable list if this final drive can be used or not, if is not inside, please contact us.

2.How is the quality of this 208-27-00243 final drive assembly?
There is no doubt with the quantity, our quantity is unbeatable.

3.How to replace 208-27-00280 final drive assembly(installation)?
Please check your excavator instruction manual and follow it replace/installation. If have problem can contact our technical support team.

Buy PC400-7 final drive assembly form construction machinery with best price, then you can get fully technical support. Tonkee offers high quality PC400-8 travel motor assy with professional technical and after-sales support service with more than 10 years.