1997 Komatsu PC200LC-6, PC210LC-6, PC220LC-6, and PC250LC-6 Excavator Shop Manual (P/N CEBM001001)

This Komatsu shop manual, publication CEBM001001, covers the 1997 PC200LC-6, PC210LC-6, PC220LC-6, and PC250LC-6 hydraulic excavators, each from serial number A83001 and up.

The English-language file is a 720-page PDF with searchable body text and embedded bookmarks. Many diagram labels are stored as images and cannot be searched.

• Engine testing: Fuel injection timing, compression and blow-by pressure checks, valve-clearance adjustment, governor motor linkage adjustment, and engine oil-pressure measurement.

• Hydraulic repair: Main pump removal, input-shaft oil-seal replacement, control valve and center swivel joint disassembly, hydraulic cylinder assembly, and air-bleeding procedures.

• Swing and travel: Model-specific final drive and swing machinery disassembly, swing circle inspection, travel motor leakage tests, and travel-deviation diagnosis.

• Undercarriage service: Track shoe tension adjustment and replacement, recoil spring disassembly, and idler, track roller, and carrier roller repair.

• Electrical diagnostics: Machine monitor service codes, S-NET communication troubleshooting, engine throttle and pump controller tests, connector pin tables, and electrical circuit diagrams.

• Factory reference data: Component weight tables, standard tightening torque charts, fluid capacities, wear limits, hydraulic test specifications, and general assembly drawings.

Written for service technicians performing workshop repairs, this manual calls for hydraulic test instruments, lifting equipment, and special tools for the relevant jobs.

Engine Tests and Repair Scope

The engine tables distinguish the turbocharged S6D102E-1 in the PC200LC-6 and PC210LC-6 from the turbocharged, aftercooled SA6D102E-1 in the PC220LC-6 and PC250LC-6. Each engine group has its own operating and test specifications.

Engine-related repair coverage includes engine removal, water-pump replacement, radiator/hydraulic oil-cooler removal, and access work for the fuel injection pump and cylinder head. Several detailed procedures refer to a separate Engine Shop Manual, which is not included. This PDF does not contain a complete internal engine overhaul.

CLSS Hydraulics and Component Repair

The closed-center load sensing system (CLSS) section explains LS and PC valve logic, pump discharge controls, and pump flow merging and dividing. Hydraulic piping drawings and circuit diagrams show neutral, boom raise, independent travel, and combined operation.

Control-valve drawings distinguish the six-spool base block from configurations with added service valves. Testing extends to LS differential pressure, PC valve output, PPC valves, and EPC solenoids, with procedures for locating hydraulic drift and measuring internal leakage.

The main pump oil-seal procedure warns that removal can damage the shaft surface. Center swivel joint assembly also has specific cautions against damaging seals and O-rings during shaft installation.

Controller Diagnostics and Wiring

Monitor panel service-code tables and failure-mode judgment charts connect symptoms to electrical and mechanical checks. The E218 communication-abnormality section includes S-NET diagnosis and model-code comparisons, helping technicians distinguish a model-selection problem from a network fault before replacing a controller.

Electrical circuit diagrams for the E-, C-, and M-mode systems cover governor control, pump control, and the machine monitor system. Connector-location drawings and pin-number tables support circuit tracing. Engine control explanations also cover automatic warm-up, auto-deceleration, and Power Max operation.

Final Drives, Swing Machinery, and Wear Standards

The PC250LC-6 has separate final drive and swing machinery disassembly and assembly procedures from the PC200LC-6, PC210LC-6, and PC220LC-6. Its travel motor and several undercarriage components also have separate maintenance standards.

Inside, you will find maintenance standards and judgment criteria for inspecting disassembled components, including gear backlash, shaft end play, pin-and-bushing clearances, and replacement limits. Exploded assembly illustrations and component cross-sectional views accompany the repair information.

Tool lists identify the 799-101-5002 hydraulic tester and 791-545-1510 final drive floating-seal installer, with application tables and sketches for selected tools.

Review the included hazard warnings for suspended components, stored hydraulic pressure, and recoil springs, and verify your machine's serial number before using the procedures.

File Format and Readability

The total includes 719 manual pages plus one added DealerNation logo page. The OEM cover, six-page revision list, and diagram foldouts are already included in the manual page count.

Bookmarks cover the five main sections and many individual procedures. The external “MAIN MENU” bookmark points to a separate file that is not included. The large electrical circuit foldouts require zooming to read small connector, pin, and wire-code labels.