12M, 140M and 160M Motor Graders Hydraulic and Steering System Caterpillar


Hydraulic Schematic

Usage:

12M B92


Illustration 1g06008809
(1) Wheel lean cylinder
(2) Circle drive motor
(3) Centershift cylinder
(4) Side shift cylinder
(5) Blade tip cylinder
(6) Steering control valve
(7) Steering cylinders
(8) Inlet manifold
(9) Blade tip control valve
(10) Swivel
(11) Blade side shift control valve
(12) Centershift control valve
(13) Circle drive control valve
(14) Wheel lean control valve
(15) Articulation cylinders
(16) Blade cushion
(17) Blade lift cylinder
(18) Blade cushion
(19) Blade lift cylinder
(20) Signal relief valve
(21) Centershift lock
(22) Pilot filter
(23) Shutoff valve
(24) Pilot control manifold
(25) Inlet manifold
(26) Blade lift control valve
(27) Blade lift control valve
(28) Articulation control valve
(29) Hydraulic tank
(30) Return filter
(31) Implement and steering pump
(32) Secondary steering pump
(A) Test port for implement pilot circuit
(B) Oil sample port
(C) Test port for the pump signal
(D) Test port for pump supply pressure

Caterpillar Information System:

14L Motor Grader Hydraulic and Steering System Introduction
Secondary Speed Timing Sensor Harness Inspection on Certain C18 Engines {1408} Secondary Speed Timing Sensor Harness Inspection on Certain C18 Engines {1408}
Installation of the 483-5957 Snow Blade and Mounting Gp on Certain Motor Graders {6158, 6159} Installation of the 483-5957 Snow Blade and Mounting Gp on Certain Motor Graders {6158, 6159}
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Installation of the 483-5955 Snow Blade and Mounting Gp on Certain Motor Graders {6158, 6159} Installation of the 483-5955 Snow Blade and Mounting Gp on Certain Motor Graders {6158, 6159}
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M314F, M316F, M318F, M320F, M322F, MH3022, MH3024 and MH3026 Wheeled Excavator Engine Supplement Crankshaft Front Seal - Remove and Install
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Technical Analysis 1 (TA1) Visual Inspection for Articulated Trucks {0372, 1000, 7000, 753S, 7565} Technical Analysis 1 (TA1) Visual Inspection for Articulated Trucks {0372, 1000, 7000, 753S, 7565}
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Caterpillar Machine Fluids Recommendations Reference Material
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Grommets for Antenna Wires are Now Available for Certain Motor Graders {1408, 7301, 733B} Grommets for Antenna Wires are Now Available for Certain Motor Graders {1408, 7301, 733B}
Announcing New Procedure to Reroute Speed Sensor Harness on Certain Compact Track Loaders {1408, 1439} Announcing New Procedure to Reroute Speed Sensor Harness on Certain Compact Track Loaders {1408, 1439}
A New Speed Sensor Harness Protection Kit is Available For Certain Compact Track Loaders {1408, 1901} A New Speed Sensor Harness Protection Kit is Available For Certain Compact Track Loaders {1408, 1901}
M314F, M316F, M318F, M320F, M322F, MH3022, MH3024 and MH3026 Wheeled Excavator Engine Supplement Engine Front Mount - Remove and Install
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M314F, M316F, M318F, M320F, M322F, MH3022, MH3024 and MH3026 Wheeled Excavator Engine Supplement Engine Rear Mount - Remove and Install
AP600F Asphalt Paver Machine Systems Electrical System (Auxiliary Hydraulic)
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