... part. It is very convenient to service. Transmission is multi-stage planetary gear drive to realize modular assembling and disassembling. ... 2nd gear, 3rd gear forward or reverse rapidly, through multi-functional control valve.Final drivesdouble reduction, planetary gearTransmission case ... braking clutch are adjustment free, oil-type, and multi-disc clutch.Braking clutch is pressed by spring, separated ...