HYDROSTATIC POWER TRAIN
4203780 First Edition 5-25
5
Traction Circuit—Reverse 4WD,
Differential Unlocked Schematic Continued
Figure 5-13
1 Operating Pressure Oil to Control Valve
(Port P)
4 Case Drain Oil from Front Axle Motor 7 Charge Pressure Oil to Lift Valve
2 Charge Pressure Oil from Front Axle Motor
and 4WD Valve (Port A)
5 Charge Pressure Oil to Control Valve (Port
F)
3 Operating Pressure Oil to Front Axle Motor
and 4WD Valve (Port B)
6 Charge Pressure Oil from Control Valve
(Port ST)
TN1729
4WD Valve
L1
11.9
ci
1
Right
Wheel
Motor
2
2.48 ci
Secondary 4WD
Shuttle Valve
3
Hydraulic
Oil Tank
4
5
4WD
Reverse
Solenoid
R1
4WD
R2
L2
B
C
Left
Wheel
Motor
11.9
ci
T
Charge Pressure
Relief Valve 250 psi
Charge Pressure
Light Switch
4WD Solenoid
4WD
Differential Lock
Control Valve
125 psi N.C.
Differential
Lock Solenoid
Priority Valve
4.5 gpm
F
CP
SW
DL
SD
P
ST
LD
Tank Check Valve
6
7
A
AD
BD
L
Operating Pressure Oil
Free Flowing or Drain Oil
Charge Pressure Oil
Metered Oil
Return Oil
Front
Axle
Motor
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