ZD221, WSM
TRAI\lSAXLE
2. TRAVELLING SYSTEM [1] HYDROSTATIC TRANSMISSION (1)
Structure
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(4)~ o
3GZAAADKP002A (1) Lubricating Orifice (2) Pump Shaft (3) Brake Shaft (8T) (4) Center Section (5) Trunnion Arm
(6) Slot Guide (7) Cradle Bearing (8) Cylinder Block (Pump) (9) Piston (Pump) (10) Thrust Ball Bearing
(11) Swashplate (12) Piston (Motor) (13) Needle Bearing (14) Thrust Ball Bearing (15) Piston Spring
(16) Cylinder Block (Motor) (17) Check Valve Spring (18) Relief Valve Spring (19) Check Valve (20) High Pressure Relief Valve
The hydrostatic transmission consists of variable displacement piston pump, fixed displacement piston motor and valve system.
2-M2
