Textron JACOBSEN GP400, Technical/Repair Manual

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5-16 4252490-Rev A
HYDROSTATIC POWER TRAIN
5
Traction Circuit—Reverse Schematic (2WD Models)
See Figures 5-7 and 5-8.
Figure 5-7
1 Return Oil to Steering Unit (Port P) 4 Operating Pressure Oil to Rear Wheel Motor 7 Return Oil from Center Reel Motor Case
Drain
2 Return Oil to Reel Valve Unit (Port P) 5 Return Oil from Shuttle Valve, Steering Unit (Port T),
and Lift Valve (Port T)
3 Charge Pressure Oil to Front Wheel
Motors 6 Return Oil from Right and Left Reel Motor Case
Drains
TN3086
Traction
Pump
Suction
Strainer
Hydraulic Tank
125 Micron
Check
Valve
A
B
Engine
3400 rpm
Oil
Cooler
2 psi
Crack
Bypass
Gear
Pump
Charge
Relief Valve
150–210 psi
Tow
Valve
0.33 ci
M1
1
2
3
4
5
Tank Fill Cap
Assembly
0.40 ci
0.92 ci
Implement
Relief Valve
800 psi
Check
Valve
Charge Pump
M3 V1
M2 M4 L1 S
51 psi
Crack
Bypass
29 psi
Crack Bypass
Switch
10 Micron
Filter
6
7
Operating Pressure Oil Charge Pressure Oil Inlet or Drain Oil
Charge
Filter
10 Micron