Full Caterpillar 320C Track-Type Excavator Parts Manual (852 Pages) | Workshop Ready

Caterpillar 320C & 320C L Parts Manual

Heavy Construction Asset Logistics

• Total Page Count: 852 Pages
• Publication Date: December 2004
• Document Type: Illustrated Parts Manual
• File Format: Searchable PDF
• Series Identifier: XEBP7956-03

Track-Type Excavator Series Compatibility

Caterpillar 320C and 320C L models are fully detailed across several production ranges. This manual provides exhaustive coverage for machines powered by the 3066 engine (S/N 7JK52509-UP). Applicable vehicle serial number ranges include FBA1-UP, GAA1-UP, MAA1-UP, and PAA1-UP. Content spans standard configurations and high-utility attachments including Demolition, Hammer, and Long Reach front-end arrangements.

Operational Continuity & Investment Protection

• Maintain fleet integrity using precise OEM part numbers for sub-assembly overhauls.
• Prevent catastrophic downtime by utilizing exact serial-number-matched component diagrams.
• Verify assembly sequences with indented part name structures for complex hydraulic rebuilding.
• Streamline procurement by referencing the specific 3066 engine arrangement for your chassis.

Visual Systems Logic & Troubleshooting

Diagnosis of the 320C series relies on the detailed "Model View" and alphabetical index to isolate systemic faults. Logic flow is supported by the parts relationship mapping, where indented nomenclature identifies internal components of larger groups like the main control valve or hydrostatic final drives. Technicians use these hierarchies to determine whether a fault requires a full group replacement or a specific internal seal kit, such as the 137-3767 stick cylinder kit.

Precision Benchmarks & Impact Values

• Main Hydraulic Relief: 4980 PSI (34,300 kPa) | Impact: Critical for maximum breakout force and hydraulic tool performance.
• Net Power Output: 138 HP (103 kW) @ 1800 RPM | Impact: Core efficiency for high-volume cycles and fuel economy.
• Drawbar Pull Force: 24,100 lb (107 kN) | Impact: Direct correlation to gradeability and undercarriage component longevity.
• Electrical Core: 24V System / 50A Alternator | Impact: Essential for electronic governor response and cold-start reliability.

Schematic & Group Visuals

High-resolution illustrations provide 3D-perspective breakdowns of every major machine section. Critical diagrams include the cooling system arrangements with suction fan groups, the full cabin interior/exterior layouts, and the multi-stage undercarriage frames. Specialized views for auxiliary hydraulic lines ensure correct orientation for high-pressure and medium-pressure demolition circuits.

Detailed Table of Contents

• Engine Section: 3066 Core, Turbocharger, Water Pump, and Fuel Injection.
• Power Train: Final Drive, Swing Drive, and Sprockets.
• Hydraulic Systems: Main Pump, Control Valves, and Pilot Logic.
• Undercarriage: Track Linkage, Rollers, Idlers, and Adjusters.
• Operator Station: Cab Layout, Monitor Group, and Control Levers.
• Service/Work Tools: Buckets, Quick Couplers, and Linkage Pins.

FAQ

Engine and drivetrain repair coverage for Caterpillar 320C / 320C L? 852 pages of exhaustive parts data ensure that the 3066 engine (S/N 7JK52509-UP) is fully documented, including turbocharger arrangements, fuel injection pumps, and water pump groups. High-density technical breakdowns permit exact identification of internal drivetrain components for the hydrostatic final drive and swing drive groups, facilitating precise component ordering for high-hour overhauls.

Verification of 320C hydraulic system schematic depth? 4980 PSI (34,300 kPa) main relief pressure specifications are supported by detailed 3D exploded views of the pilot-operated control valve and main hydraulic pump groups. The manual facilitates complex diagnostic mapping by providing indented parts lists for the 189-2367 Main Control Valve Group and specialized attachment arrangements like the 190-7814 Auxiliary Lines Group.

Relationship between XEBP7956-03 and other Caterpillar service volumes? Comprehensive service requires referencing the Operation & Maintenance Manual and the Systems Operation Testing and Adjusting Manual for specific performance calibration. While this parts manual identifies every serviceable component from the 1R-0739 oil filter to the 221-6552 track motor, the separate Service Manual is necessary for torque sequences and pressure adjustment procedures.

Workshop compatibility for Caterpillar 320C L print-outs? Searchable PDF format ensures that specific assembly groups, such as the 194-4411 Undercarriage Frame or 176-7128 Track Link Groups, can be printed at high resolution for on-site bench repairs. This digital-to-print capability ensures that technicians have clear, smudge-free reference diagrams for identifying the exact 137-3767 seal kits required for cylinder maintenance.

Undercarriage and track assembly benchmarks for Caterpillar 320C? 24,100 lb (107 kN) of drawbar pull capacity is maintained through the detailed parts support of the track-type undercarriage, including idler, roller, and track adjuster groups. The documentation covers both standard and long (L) configurations, ensuring that specific track shoe widths and bolt-on protector arrangements are accurately identified for the GAA, FBA, MAA, and PAA serial number prefixes.