Kubota WSM ZD321 User Manual

2-M2
ZD321, ZD326, ZD331, WSM
TRANSAXLE
2. TRAVELLING SYSTEM
[1] HYDROSTATIC TRANSMISSION
(1) Structure
The hydrostatic transmission consists of variable displacement piston pump, fixed displacement piston motor and
valve system.
(1) Lubricating Orifice
(2) Pump Shaft
(3) Brake Shaft (8T)
(Motor Shaft)
(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
KiSC issued 04, 2007 A

Kubota WSM ZD321 Specifications

General

Fuel Type	Diesel
Engine Type	Diesel
Transmission	Hydrostatic
Cutting Width	60 inches
Type	Zero-Turn Mower
Turning Radius	Zero turn