General
1 - 30
Figure 1-25 Sequence of Operation - BRAKE-OFF, Option Code D
Tractor
Control
Lever
Electric
Operated
Control Lever
Center Position
Control
Manifold
d
Co
Ce
High Pressure
Low Pressure
Pilot Pressure
Drain Pressure
To Tractor
Ripper
Valve
Pilot
Supply
From
Tractor
To Tractor
Drain
Brake
Planetary
Reducer
Brake-Off
Clutch
A
B
X1
Counterbalance
Relief Manifold
BO
(BRAKE OFF switch activated)
ECM
M5
Motor
Note: Electrical control wiring
between the Brake-Off and
Hi-Speed control switches and
control manifold are not shown
for clarity.
Summary of Contents for H12E
Page 8: ...vi Notes ...
Page 48: ...General 1 40 Notes ...
Page 54: ...Section 1 1 46 Figure 1 35 H12E Hydraulic Electrical Schematic Option Code B CAT D8T C74 ...
Page 55: ...Section 1 1 47 Figure 1 36 H12E Hydraulic Electrical Schematic Option Code D CAT D8T C74 ...
Page 59: ...Section 1 1 51 Figure 1 40 H12E Hydraulic Electrical Schematic Option Code D CAT D8R C59 ...
Page 63: ...Troubleshooting 2 4 Notes ...
Page 75: ...Service 3 12 Notes ...
Page 90: ...Section 4 4 15 Intentionally Blank ...
Page 102: ...Section 4 4 27 Intentionally Blank ...
Page 108: ...Section 4 4 33 Intentionally Blank ...
Page 116: ...Section 4 4 41 Intentionally Blank ...
Page 119: ...Repairs 4 44 Notes ...
Page 120: ......