Factory Repair Manual For Caterpillar 312B, 312BL Excavator. Illustrations, instructions, diagrams for step by step remove and install, assembly and disassembly, service, inspection, repair, troubleshooting, tune-ups.

Format: PDF
Language: English
Pages: 3973
Bookmarks: Yes
Searchable: Yes
Wiring Diagrams: Yes
Hydraulic Diagrams: Yes

Model

Caterpillar 312B; 312BL

312B 2NS
312B 9HR
312BL 3FS
312BL 8JR

312B 6SW 6SW00001-UP
312B 9NW 9NW00001-UP
312BL 9FS 9FS00001-UP
312BL 2KW 2KW00001-UP

-AIR INLET AND EXHAUST SYSTEM
Systems Operation
Testing and Adjusting
Specifications / Disassembly and Assembly
-BASIC ENGINE
Systems Operation
Testing and Adjusting
Specifications / Disassembly and Assembly
-COOLING SYSTEM
Systems Operation
Testing and Adjusting
Specifications / Disassembly and Assembly
-ELECTRICAL AND STARTING SYSTEM
Systems Operation
Testing and Adjusting
Troubleshooting
Specifications / Disassembly and Assembly
-ENGINE ARRANGEMENT
Engine Design
Troubleshooting
General Information
Engine Design
-FRAME AND BODY
Counterweight – Remove and Install
Swing Drive – Remove
Swing Drive – Disassemble
Swing Drive – Assemble
Undercarriage Frame – Remove
Undercarriage Frame – Install
Swing Gear and Bearing – Remove and Install
Fan Guard – Remove and Install
Hood – Remove and Install
-FUEL SYSTEM
Systems Operation
Testing and Adjusting
Specifications / Disassembly and Assembly
-HYDRAULIC SYSTEM
Systems Operation
Testing and Adjusting
Specifications / Disassembly and Assembly
-IMPLEMENTS
CP Boom
Boom – Remove
Boom Bearings and Seals – Remove
Boom Bearings and Seals – Install
Boom – Install
Grease Lines – Stick
Grease Lines – Boom
Bucket Linkage
Bucket Linkage – Remove
Bucket Linkage Bearings and Seals – Remove
Bucket Linkage Bearings and Seals – Install
Bucket Linkage – Install
Stick – Short
Stick – Long
Stick – Medium
Stick – Remove
Stick Bearings and Seals – Remove
Stick Bearings and Seals – Install
Stick – Install
-LUBRICATION SYSTEM
Systems Operation
Testing and Adjusting
Specifications / Disassembly and Assembly
-MACHINE ARRANGEMENT
Service Intervals
Heating and Air Conditioning Service Publications
-OPERATOR STATION
Systems Operation
Testing and Adjusting
Troubleshooting
Specifications / Disassembly and Assembly
-POWER TRAIN
Duo-Cone Conventional Seals – Install
Final Drive – Remove
Final Drive – Disassemble
Final Drive – Assemble
Final Drive – Install
Final Drive Sprocket – Remove and Install
Track Roller – Remove
Track Roller – Disassemble
Track Roller – Assemble
Track Roller – Install
Track – Separate
Track – Connect
-SERVICE EQUIPMENT AND SUPPLIES
Systems Operation
Testing and Adjusting
Troubleshooting
Disassembly and Assembly
-TORQUE SPECIFICATIONS
CP Metric (ISO) Fasteners
English (SAE) Fasteners
Ground Engaging Tool (G.E.T.) Fasteners
Installation of Fittings
Straight Thread O-Ring Fittings
Plugs
O-Ring Face Seal Fittings
Bulkhead Nuts
Flare Fittings
Air Conditioning Fittings
Air Brake Fittings
Tapered Pipe Thread Fittings
Miscellaneous Fittings
Hose Clamps
-UNDERCARRIAGE
Track Adjuster – Remove
Track Adjuster – Install
Front Idler and Recoil Spring – Remove
Front Idler and Recoil Spring – Install
Front Idler – Disassemble
Front Idler – Assemble
Track Carrier Roller – Remove
Track Carrier Roller – Disassemble
Track Carrier Roller – Assemble
Track Roller – Remove
Track Roller – Disassemble
Track Roller – Assemble
Track Roller – Install
Front Idler and Recoil Spring – Remove
Front Idler and Recoil Spring – Install
Recoil Spring – Disassemble
Recoil Spring – Assemble
Track Adjuster – Disassemble
TrackAdjuster-Assemble
-WORK TOOLS
Bucket
Bucket Adjuster
Quick Coupler
Bucket – Remove
Bucket – Install
-312B 312B L SCHEMATICS
312 and 312B Excavators Medium Pressure with Blade
312B Excavators Double Action, One Pump (HAB) Hydraulic System (Attachment)
312B Excavators Stick Lowering Control Valve Hydraulic System (Attachment)
312B Excavators Stick Lowering Control Valve w HAB Hydraulic System (Attachment)
312B Excavators Single Action, One Pump Hydraulic System (Attachment)
312, 312B and 312B L Excavators Medium Pressure Hydraulic System (Attachment)
Caterpillar 312B and 312B L Excavator Electrical System
312B Excavator Hydraulic System With Blade
Fluid Power and Electrical Graphic Symbols