RTV1140CPX, WSM
TRANSMISSION
[1] HYDROSTATIC TRANSMISSION (HST)
(1) Structure
The RTV1140CPX has its HST built into the transmission case and incorporates a hydraulically operated servomechanism. The servomechanism controls the pedal operation hydraulically. As a result a smoother pedal operation can be achieved. The components of the RTV1140CPX HST (transmission case) are variable displacement piston pump, fixed displacement piston motor, variable displacement piston motor, charge pump, servo-regulator, unload valve and various valves. Refer to the next page for detailed parts in the HST.
(1) Input Shaft (Pump Shaft)
(2) Charge Pump
(3) Output Shaft (Motor Shaft)
(4) Suction Pipe
(5) HST Housing
(Transmission Case)
(6) Assist Motor Cover
(7) Servo Piston
(8) Servo Regulator
(9) Oil Filter Cartridge (HST)
(Yellow Color)
(10) Oil Cooler
(11) Filter Bracket
(12) Oil Filter Cartridge (Suction)
(Orange Color)
(13) Check and High Pressure
Relief Valve (Reverse)
(14) Suction Hose 2 (Oil Filter to
HST Change Pump)
(15) Suction Hose 1
(Transmission Case to Filter)
(16) Check and High Pressure
Relief Valve (Forward)
(17) Unload Valve
9Y1210293TRM0003US0
2-M3
KiSC issued 05, 2014 A
RTV1140CPX, WSM
TRANSMISSION
(1) Input Shaft (Pump Shaft)
(2) Feedback Lever
(3) Regulator Shaft
(4) Output Shaft (Motor Shaft)
(5) Charge Pump
(6) Variable Swashplate (Pump)
(7) HST Oil Filter Cartridge
(8) Piston
(9) Cylinder Block (Pump)
(10) Port Block Cover
(11) Suction Oil Filter Cartridge
(12) Charge Relief Valve
(13) Control Piston
(14) Assist Motor Cover
(15) Variable Swashplate
(Assist Motor)
(16) Piston
(17) Cylinder Block (Assist Motor)
(18) Unload Spool
(19) Cylinder Block (Motor)
(20) Piston
(21) Servo Piston
(22) Guide
(23) Cradle Bearing
(24) Regulator Spool
(25) Regulator Valve Assembly
(26) Check and High Pressure
Relief Valve
(27) Anti-cavitation Valve
9Y1210293TRM0004US0
2-M4
KiSC issued 05, 2014 A
