Komatsu PC300-8M0 PC350-8M0 Hydraulic Excavator Operation & Maintenance Manual – PEN00640-01

Description

Komatsu PC300-8M0 / PC350-8M0 Operation & Maintenance Manual

This is the complete Operation & Maintenance Manual for the Komatsu PC300-8M0, PC300LC-8M0, PC350-8M0, and PC350LC-8M0 hydraulic excavators. Published under form number PEN00640-01 and covering machines from serial number PC300-80000 and up and PC350-80000 and up, this 405-page manual is the same publication that ships with the machine and is kept in the magazine box beside the operator’s seat for daily reference.

If you own, operate, service, or maintain one of these Komatsu excavators, this manual is the reference document for everything from pre-start checks and warm-up procedures to periodic maintenance intervals and hydraulic system specifications. It is written for both operators and maintenance personnel, and Komatsu explicitly warns that operators and maintenance staff must read it before operating or servicing the machine.

File Details

• Manual type: Operation & Maintenance Manual (OMM)
• Brand: Komatsu
• Models covered: PC300-8M0, PC300LC-8M0, PC350-8M0, PC350LC-8M0
• Serial numbers: PC300-80000 and up; PC350-80000 and up
• Document number: PEN00640-01
• Publication date: January 2013 (01-13)
• Language: English
• Page count: 405 pages
• File format: PDF
• Publisher: Komatsu Ltd., Tokyo, Japan

Chapters Covered

The manual is organized into the following major sections, each paginated with its own numbering system:

• Foreword and Introduction — California Proposition 65 warnings, before-reading instructions, machine use, directions of machine, visibility from operator’s seat, ROPS compliance, service meter location, machine serial number and distributor record page
• Safety — Safety information, signal words, safety labels, location of safety labels on the machine, safety label part numbers
• General Precautions Common to Operation and Maintenance — Precautions before starting operation, understanding the machine, preparations for safe operation, safety-related equipment, inspecting machine, protective clothing, keeping the machine clean, fire prevention, precautions when getting on or off, no jumping, no people on attachments, emergency exit from cab, protective structures, protection against falling/flying objects, unauthorized modification, attachments and options, cab glass, running engine inside a building
• Precautions for Operation — Jobsite investigation, loose ground, high-voltage cables, visibility, signalman signals, asbestos dust, starting engine, warning tags, inspection before starting, cold areas, booster cables, checks before operation, traveling forward/reverse/swing, traveling precautions, traveling on slopes, operating on slopes, prohibited operations, snow-covered surfaces, parking, transportation, towing, lifting objects with bucket
• Precautions for Maintenance — Warning tags, workplace cleanliness, suitable place for maintenance, authorized personnel, working with others, maintenance with engine running, installing/removing/storing attachments, working at high places, working under machine or work equipment, proper tools, welding, battery handling, hammer use, high-temperature coolant, high-temperature oil, high-pressure oil, high-pressure fuel, high-pressure hoses and piping, high voltage, noise, high-pressure grease, recoil spring, accumulator and gas spring, compressed air, air conditioner maintenance, waste disposal, mercury components, window washer fluid, periodic replacement of safety critical parts
• Operation — Machine view illustrations, controls and gauges, monitoring system, detailed controls and gauges (machine monitor, switches, working mode selector, auto-deceleration, travel speed selector, wiper, washer, buzzer cancel, air conditioner), handling function switches, camera display, user menu, ECO guidance, machine settings, maintenance screen, monitor setting, message display, starting switch, fuel control dial, lamp switch, swing lock, machine push-up, revolving warning lamp, horn, one-touch power max, cigarette lighter, room lamp, emergency pump drive, swing brake cancel, lock lever, travel levers, work equipment control levers, windshield, sun roof, door lock, caps and covers with lock, drink box, magazine box, ashtray, air conditioner controls and operation, radio, AUX, antenna, 24V/12V power source, fuse, fusible link, controller, toolbox, grease pump holder, fire extinguisher
• Machine Operations and Controls — Before starting engine, walk-around checks, checks before starting, starting engine (including cold weather and booster cable procedures), after starting engine, breaking-in new machine, engine warm-up, hydraulic equipment warm-up, stopping engine, machine operation (moving forward/backward/steering), swinging, work equipment controls, working mode, one-touch power max, prohibited operations, general operation information, traveling on slopes, escape from mud, recommended applications, bucket replacement and inversion, parking machine, locking
• Transportation — Transportation procedure, loading and unloading with trailer, securing machine, stowing radio antenna, rearview mirrors removal/installation, lifting machine, transportation posture (upper structure, work equipment, counterweight)
• Cold Weather Operation — Cold weather operation information, fuel and lubricants, cooling system coolant, battery, after daily work completion, after cold weather season
• Long Term Storage — Before storage, during storage, after storage, starting machine after long-term storage
• Troubles and Actions — Running out of fuel, air bleeding procedure, phenomena that are not failures, towing the machine, lightweight towing hole, severe job condition, discharged battery, battery charging, starting engine with booster cables, other trouble (electrical system, chassis, engine), electronic control system
• Maintenance — Maintenance information, outline of service, handling oil/fuel/coolant and performing oil clinic, wear parts, recommended fuel/coolant/lubricant, tightening torque specifications, safety critical parts, maintenance schedule, maintenance interval for hydraulic breaker, maintenance procedure (initial 1000 hours, when required, every 50/100/250/500/1000/2000/4000/5000/8000 hours)
• Specifications — Operating weight, bucket capacity, engine, dimensions, working ranges
• Attachments and Options — General precautions for safety, bucket with hook, machine ready for attachment, attachment guide, attachment combinations, track shoes selection, recommended attachment operations (hydraulic breaker), handling machines equipped with KOMTRAX
• Index — Alphabetical index

Altogether, this manual gives a Komatsu PC300-8M0 or PC350-8M0 owner or technician the complete operating envelope for the machine: every control and gauge on the monitor panel, the correct warm-up sequence for both engine and hydraulic system, the full periodic maintenance table from initial 1000-hour service through 8000-hour service, safety-critical part replacement intervals, tightening torques for metric bolts and hydraulic hoses, recommended lubricants and coolant densities, and the machine’s own working ranges and dimensions. The transportation, lifting, and cold-weather sections cover the situations that most often lead to machine damage or injury when procedures are not followed.

What This Manual Does For You

Because the Komatsu PC300-8M0 and PC350-8M0 are large hydraulic excavators with sophisticated electronic control, the gap between correct and incorrect operation is often a matter of a few seconds — a missed warm-up, an incorrect working mode, or a maintenance interval that slipped. This manual closes that gap by giving you the actual procedures, actual values, and actual warnings that Komatsu published for these machines.

For the operator, it covers pre-start walk-around checks, the full machine monitor layout, working mode selection (P, E, L, B, ATT/P, ATT/E), travel and swing controls, one-touch power max, and how to read the action level and alarm monitors when something goes wrong. For the maintenance technician, it provides the complete maintenance schedule chart with hour intervals, the safety-critical parts list with replacement times, capacities for engine oil, swing machinery, final drive, damper case, hydraulic tank, and fuel tank, plus torque values for track shoe bolts, swing circle bolts, and hydraulic hose connections.

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Instant PDF Delivery

This Komatsu PC300-8M0 / PC350-8M0 Operation & Maintenance Manual is delivered as an instant PDF download — no shipping, no waiting, no physical binder to lose. Open it on a workshop computer, a laptop, a tablet, or a phone at the machine, print the pages you need for the job, and keep the full manual on hand for every service interval. The PDF works on any device that reads standard PDF files.