1995 Komatsu PC200-6, PC200LC-6, PC210LC-6, PC220LC-6, and PC250LC-6 Hydraulic Excavator Operation and Maintenance Manual (P/N CEAMX20601)

The January 1995 Komatsu Operation and Maintenance Manual CEAMX20601 covers PC200-6, PC200LC-6, PC210LC-6, PC220LC-6, and PC250LC-6 hydraulic excavators, each from serial number A80001 and up.

• Operation and controls: Pre-start inspections, monitor displays, working-mode selection, travel and swing controls, loading, transport, cold-weather operation, and long-term storage.

• Undercarriage and bucket service: Track-tension adjustment, track-shoe bolt tightening, bucket replacement and inversion, ESCO Vertalok tooth replacement, and bucket-clearance adjustment.

• Engine and cooling maintenance: Engine-oil and filter changes, air-cleaner servicing, cooling-system flushing, fan-belt inspection, and corrosion-resistor cartridge replacement.

• Hydraulic maintenance: Tank-oil and filter replacement, inline-filter cleaning, accumulator handling, and air bleeding for the pump, cylinders, swing motor, and travel motors.

• Troubleshooting and electrical checks: Engine, chassis, and electrical fault tables, electronic-control error codes, fuse assignments, and identification of work requiring distributor service.

• Attachments and cab equipment: Breaker/crusher circuit selection, attachment mounting and removal, bucket-and-arm compatibility charts, track-shoe selection, and air-conditioner operation and maintenance.

This manual is intended for trained, authorized operators and maintenance personnel.

Operator Checks and Fault Identification

Operating guidance addresses steep slopes, mud recovery, and work near high-voltage lines. The monitor section separates basic checks, caution indicators, and emergency-stop warnings.

Troubleshooting tables connect symptoms with likely causes and distinguish routine checks from work requiring distributor attention. That distinction helps operators decide when a fault needs repair support.

The electronic-control table explains E02 for the TVC valve system, E03 for the swing brake, E05 for the governor, and CALL indications. Override-switch guidance concerns temporary operation pending immediate distributor inspection. Electrical coverage consists of basic checks, fuse/circuit assignments, and fault tables.

Track, Bucket, and Hydraulic Maintenance

Track-tension instructions distinguish measurement locations by model; PC250LC-6 track-shoe fasteners also have a separate tightening specification. Bucket-clearance adjustment is illustrated with the split-shim arrangement.

Routine service covers swing-machinery and final-drive oil changes, swing-pinion lubrication, and hydraulic tank/strainer servicing. The hydraulic bleeding section distinguishes pump, cylinder, and motor requirements. It warns that operating an unfilled pump case can cause overheating and premature pump damage.

The maintenance schedule chart also distinguishes ordinary digging from hydraulic-breaker use, with oil and filter intervals linked to the proportion of breaker operation. Standard tightening-torque tables and a maintenance-tool list support the documented work.

Secure the machine on level ground and follow the manual’s pressure-release precautions before carrying out inspections or maintenance.

Cooling Service and Engine Work Limits

Cooling-system coverage includes an antifreeze mixing-rate table, corrosion-resistor replacement, and radiator and oil-cooler cleaning. Aftercooler cleaning applies to PC220LC-6 and PC250LC-6.

Engine-valve adjustment, turbocharger inspection, and alternator or starter repairs are referred to the distributor. This operation and maintenance volume does not provide internal overhaul procedures for those components.

Fuel-filter procedure limitation: The continuation on printed page 3-57 is missing from this file, while page 3-59 appears twice. The fuel-filter replacement and fuel-system bleeding instructions are therefore incomplete.

Attachment Compatibility and Cab Equipment

The Change-over Hydraulic Circuit chart explains breaker and general-attachment routing. The manual warns that breaker operation in H.O. mode can damage the hydraulic equipment.

Bucket installation combination charts relate bucket types to arm lengths and material-density limits. Backhoe control-pattern conversion views show the alternate layout; the conversion itself is assigned to the distributor.

Application and misuse guidance covers crushers, grapples, thumb and rotating grapples, shears, and hydraulic pile drivers. Cab sections address heater controls, air-conditioner operation, refrigerant checks, filter cleaning, and compressor-belt adjustment.

A Preview of Belt-Tension Specifications

These belt checks are a small sample of the maintenance specifications in the manual.

The fan-belt specification is approximately 8 mm (0.31 in) of deflection midway between the alternator and water-pump pulleys under about 6 kg (13 lb) of force.

For machines with air conditioning, compressor-belt deflection is 15–18 mm (0.6–0.7 in), measured midway between the drive and compressor pulleys under approximately 6 kg (13 lb) of force.

Text Search, Bookmarks, and PDF Contents

Search and diagram detail: OCR text search is available, with recognition errors and incomplete text capture in some tables and illustrations. Embedded bookmarks cover the main sections and many subsections; the MAIN MENU bookmark requires a separate file that is not included. Small fuse-layout and attachment-valve labels are readable when enlarged.

One printable English PDF contains 250 pages total: 248 manual pages, one additional introductory page, and one manual-revision form. Both additional pages are already included in the total.