Travelling System; Hydrostatic Transmission; Structure - Kubota GR1600EU Workshop Manual

GR1600EU, WSM

2. TRAVELLING SYSTEM

[1] HYDROSTATIC TRANSMISSION

(1) Structure

(1) Check Valve
(2) Trunnion Arm
(3) Charge Relief Valve
(4) Charge Pump
(5) Center Section
(6) Cylinder Block (Pump)
(7) Piston Spring
Hydrostatic Transmission (HST) consists of a variable displacement piston pump, a fixed displacement piston
motor, two check valves (1) and a by-pass valve.
The pump and motor have five pistons (8) in their own cylinder block (6), (21).
The discharge rate of the HST is 10 cm
With the speed change pedal connecting to the trunnion arm (2) in HST via a link mechanism, the speed change
pedal permits simple operation of this machine, starting, stopping and accelerating or decelerating.
This HST has check valves (1) and does not have relief valves.
(8) Piston
(9) Spring (Cylinder Block)
(10) Washer
(11) Thrust Ball Bearing
(12) Swashplate
(13) Cradle Bearing
(14) Ball Bearing
3
/rev. (0.61 cu. in./rev.).
(15) Oil Seal
(16) Pump Shaft
(17) Ball Bearing
(18) Oil Seal
(19) Motor Shaft
(20) Thrust Ball Bearings
(21) Cylinder Block (Motor)
2-M2
TRANSAXLE
(22) By-pass Plug
(23) By-pass Spool
(24) By-pass Spring
(25) Journal Bearing
(26) Oil Seal
(27) Journal Bearing
(28) Oil Seal
9Y1210595TXM0003US0
KiSC issued 11, 2013 A