Komatsu PC300-8 PC350-8 Hydraulic Excavator Operation & Maintenance Manual – PEN00181-02

Description

Komatsu PC300-8 PC350-8 Hydraulic Excavator Operation & Maintenance Manual

This is the complete Operation & Maintenance Manual for the Komatsu PC300-8, PC300LC-8, PC350-8, and PC350LC-8 hydraulic excavators, published under form number PEN00181-02. It is the manual that ships with the machine from the factory and covers everything an operator or maintenance technician needs — from daily checks and safe operating procedures through scheduled maintenance intervals, hydraulic system service, and machine specifications.

File Details

• Manual type: Operation & Maintenance Manual
• Brand: Komatsu
• Models covered: PC300-8, PC300LC-8, PC350-8, PC350LC-8
• Serial numbers: PC300-60001 and up; PC350-60001
• Engine: Komatsu SAA6D114E-3 diesel engine
• Language: English
• Page count: Approximately 393 pages
• File format: PDF
• Document number: PEN00181-02
• Publication date: December 2007

Chapters Covered

• Foreword, California Proposition 65 warnings, and emissions warranty information
• Safety Information — signal words, hazard identification, safety alert symbols
• Introduction — machine use, directions of machine, product identification number, serial number locations
• Safety — safety labels and their locations, general precautions common to operation and maintenance, fire prevention, precautions when getting on or off the machine, precautions for operation, starting engine safety, transportation, towing, lifting, maintenance precautions, high-pressure oil and fuel precautions, accumulator and gas spring handling, waste disposal
• Operation — detailed controls and gauges, monitoring system, machine monitor screens and switches, working mode selector, travel speed selector, auto-deceleration, wiper and washer, air conditioner controls, radio, auxiliary power, fuses and fusible links, controllers, toolbox, grease pump holder, fire extinguisher, walk-around checks, checks before starting, engine starting procedures, warm-up operations for engine and hydraulic equipment, breaking-in a new machine, machine operation, steering, swinging, work equipment controls, working modes, prohibited operations, general operating information, traveling on slopes, escape from mud, recommended applications, bucket replacement and inversion, parking, locking, transportation, lifting
• Maintenance — maintenance information, outline of service, wear parts list, recommended fuel/coolant/lubricant, tightening torque specifications, safety critical parts list, maintenance schedule chart (initial 1000 hours, when required, every 50/250/500/1000/2000/4000/5000/8000 hours), maintenance procedures for air cleaner, cooling system, track tension, bucket teeth, air conditioner, hydraulics, engine oil and filter, fuel filters, hydraulic filters and strainers, swing machinery, final drive, accumulator, and more
• Specifications — operating weight, bucket capacity, engine horsepower, dimensions, travel speed, swing speed, working ranges
• Attachments and Options — general safety precautions, bucket with hook, machine ready for attachment, hydraulic circuit, attachment removal and installation, attachment operations, attachment guide, track shoe selection, recommended attachment operations, handling machines equipped with KOMTRAX
• Index

This Komatsu PC300-8 PC350-8 Operation & Maintenance Manual is far more than a basic owner’s guide. It walks through the complete machine monitor system with all its warning and caution displays, explains every control lever and pedal, and provides the full maintenance schedule that Komatsu specifies for these excavators. The maintenance section alone covers everything from initial 1000-hour service through every 50, 250, 500, 1000, 2000, 4000, 5000, and 8000-hour intervals, including detailed procedures for replacing fuel filters, hydraulic oil filters, breather elements, corrosion resistor cartridges, final drive oil, swing machinery oil, and hydraulic tank oil. It also includes the safety critical parts list with replacement intervals, tightening torque specifications for metric bolts and hydraulic hoses, and the recommended fuel, coolant, and lubricant chart by ambient temperature.

Machine Operation and Controls

The Operation section of this PC300-8 PC350-8 manual gives you the full picture of the operator’s compartment. It documents the machine monitor layout with every warning lamp, gauge, and pilot display explained, the working mode selector switch (P, E, L, B, and ATT modes), the travel speed selector (Lo, Mi, Hi), auto-deceleration switch, one-touch power max function, swing lock, wiper and washer, air conditioner controls, radio, and auxiliary power outlets. It also covers the lock lever, travel levers and pedals, and both work equipment control levers with their full range of motion for arm, boom, bucket, and swing functions.

Beyond the controls, this manual provides the engine starting procedure including automatic preheating, the turbo protect function, and the warm-up sequence for both the engine and the hydraulic equipment. It then covers breaking in a new machine, moving and steering the machine, swinging, work equipment operation, and the working mode selector with its applications for each mode.

Maintenance and Service Information

The Maintenance section is where this Komatsu PC300-8 PC350-8 manual becomes a genuine workshop reference. It gives you the complete maintenance schedule chart broken down by interval, with every procedure referenced to its page. The procedures themselves are detailed, covering air cleaner element cleaning and replacement, cooling system cleaning and coolant change with antifreeze mixing ratios, track shoe bolt tightening, track tension adjustment, bucket teeth replacement for both vertical and horizontal pin types, bucket side cutter and shroud replacement, bucket clearance adjustment, window washer fluid, air conditioner refrigerant check and compressor belt tension, washable floor cleaning, gas spring check, hydraulic system air bleeding, water separator inspection, greasing points at 50, 250, and 500-hour intervals, battery electrolyte level, fuel pre-filter and main filter cartridge replacement, swing pinion grease, swing machinery case oil, final drive case oil, engine oil and filter, radiator and oil cooler fins, air conditioner filters, hydraulic tank breather elements, hydraulic oil filter element, damper case oil, fan belt and alternator belt, corrosion resistor cartridge, final drive case oil change, hydraulic tank strainer, accumulator charge pressure, and hydraulic circuit pressure release.

Specifications and Troubleshooting

This manual includes a dedicated Specifications section with operating weights, bucket capacity, engine horsepower, overall dimensions, track width, cab height, track length, tumbler center distance, ground clearance, travel speed, swing speed, and the full working range diagram with maximum digging reach, digging depth, digging height, vertical wall digging depth, dumping height, and ground-level reach. A Troubleshooting section covers running out of fuel and air bleeding, phenomena that are not failures, towing, discharged battery and booster cable starting, and a chart of other troubles with causes and remedies for the electrical system, chassis, and engine.

Why This Manual Matters

Correct operation and maintenance of a Komatsu PC300-8 or PC350-8 hydraulic excavator depends on having the right procedures and the right specifications at hand. This manual gives you both. The safety information alone — covering electrical cable distances, jobsite hazards, proper starting, and maintenance precautions — is essential for anyone working around these machines. The maintenance schedule tells you exactly when to service each component, and the detailed procedures tell you how. The specifications give you the numbers you need for adjustments and inspections.

Whether you are an owner performing routine maintenance, a technician servicing a machine in the field, or an operator who wants to understand the machine’s systems and monitors, this Komatsu PC300-8 PC350-8 Operation & Maintenance Manual is the reference that covers the machine from top to bottom.

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Instant PDF Delivery

This listing is for a digital PDF download of the Komatsu PC300-8 PC350-8 Operation & Maintenance Manual (form number PEN00181-02). After payment is complete, the download link is available immediately — no shipping, no waiting. The PDF can be viewed on any device, from a desktop computer in the workshop to a tablet or smartphone in the field, and it can be printed for use in the cab or service area. Keep it on hand for reference during daily checks, scheduled maintenance, and troubleshooting.