Solenoid Valve; Oil From Regulating Valve; Drain Port- Page 290

TRANSMISSION

L3560, L4060, L4760, L5060, L5460, L6060, WSM

3-M14

[B] GST Valve

GST Valve Assembly

The GST valve assembly is installed at the left side

of  the  transmission  mid  case.  In  the  GST  valve

assembly,  many  parts  comprising  the  system  are

installed,  including  the  solenoid  valves,  shift  pistons,

shift check valves, low-pass valve, proportional reducing

valve, clutch valve, check valves, sensor and switches.

The GST valve assembly functions as the central unit of

the GST system.

9Y1210824TRM0018US0

Solenoid Valve

When the GST lever is operated, the solenoid valve

controls  the  flow  of  oil  according  to  the  gear  shifting

operation.

When the solenoid is not excited, oil from regulating

valve flows to the shift piston through the surrounding of

the ball (10) in the valve. When the solenoid is excited,

plunger (9) presses the ball against the valve seat (11)

to open the unload passage (12), and drain the oil.

9Y1210824TRM0019US0

(1) GST Valve Assembly

(2) Clutch Valve

(3) Low-pass Valve

(4) Connector for Pressure 

Switch

(5) Proportional Reducing Valve

(6) Connector for Oil 

Temperature Sensor

(7) Connector for Solenoid Valve

(8) Solenoid Valves

a:

Oil From Regulating Valve

(1) Solenoid Valve 4

(2) Solenoid Valve 3

(3) Solenoid Valve 6 

(Main Range Shift)

(4) Solenoid Valve 5 

(Sub-range Shift)

(5) Solenoid Valve 2

(6) Solenoid Valve 1

(7) Coil

(8) Solenoid Valve

(9) Plunger

(10) Ball

(11) Valve Seat

(12) Unload Passage

T:

Drain Port

R: IN Port
P:

To Shift Piston

KiSC issued 03, 2016 A