wsm L503 - Construction and Function of Components

3-M17
L3130 · L3430 · L3830 · L4630 · L5030, WSM
TRANSMISSION
(2) Construction and Function of Components
(A) Regulating Valve
The oil from the hydraulic pump for the power steering
system flows to the GST circuit to set the pressure of the
circuit. Other oil flows to the power steering circuit.
The oil from the power steering hydraulic pump (2)
flows through the pressure reducing valve (5) to the GST
circuit. When the oil is filled into the circuit, the pressure
reducing valve (5) is closed to maintain the pressure in
the GST system circuit to 2.45 MPa (25.0 kgf/cm
2
, 356
psi).
The oil from the power steering pump passes through
the regulating valve (3) and check valve (4), and then it
flows to power steering circuit. The regulating valve (3)
is provided to maintain 2.94 MPa (30.0 kgf/cm
2
, 427 psi)
at inlet pressure of the pressure reducing valve (5)
except when the power steering is operated. Thereby
getting 2.45 MPa (25.0 kgf/cm
2
, 356 psi) of the GST
circuit pressure.
W1019304
(1) Regulating Valve Assembly
(2) Hydraulic Pump
(3) Regulating Valve
(4) Check Valve
(5) Pressure Reducing Valve
A : To Power Steering Circuit
B : To GST Circuit and PTO
Clutch Valve
C : From Power Steering
Circuit
D : From Hydraulic Pump
KiSC issued 02, 2007 A