COMPONENT OPERATION / Travel Device OUTLINE The travel device consists of the travel motor, travel reduction gear and travel brake valve. The travel mo- tor is a swash plate type variable displacement axial plunger motor and equipped with the parking brake (with built in a wet-type negative multi-disc brake). The travel motor is driven by pressure oil from the pump and transmits its rotary power to the travel re- duction gear. The travel reduction gear is a three-stage reduction planetary gear type, converts rotary power transmitted from the travel motor to slow large torque, and rotates the sprocket and track.
The travel brake valve pre- vents the travel circuit from being overloaded and prevents the occurrence of cavitation. ZAXIS450-3, 450LC-3, 470H-3, 470LCH-3 ZAXIS500LC-3, 520LCH-3 Travel Reduction Gear Travel Motor Travel Reduction Gear Travel Motor T1J1-03-05-002 T1J1-03-05-009 Travel Brake Valve Sprocket Travel Brake Valve Sprocket T3-5-1