2-M2
ZD18(F) · ZD21(F) · ZD28(F), WSM
TRANSAXLE
2. TRAVELLING SYSTEM
[1] HYDROSTATIC TRANSMISSION
(1) Structure
[Serial No. Affected: below 20000]
The hydrostatic transmission consists of variable displacement piston pump, fixed displacement piston motor and
valve system.
(1) Trunnion Arm
(2) Swashplate
(3) Cradle Bearing
(4) Ball Bearing
(5)Thrust Ball Bearing
(6) Piston
(7) Piston Spring
(8) Cylinder Block (Pump)
(9) Pump Shaft
(10) Thrust Ball Bearing
(11) Motor Shaft
(12) Needle Bearing
(13) Cylinder Block (Motor)
(14) Center Section
(15) Needle Bearing
(16) Neutral Orifice
(17) Lubricating Orifice
(18) Check Valve (Ball)
(19) Check Valve Spring