Komatsu PC70-8 Hydraulic Excavator Operation & Maintenance Manual – PEN00808-00

Description

Komatsu PC70-8 Hydraulic Excavator Operation & Maintenance Manual

The Komatsu PC70-8 Hydraulic Excavator Operation & Maintenance Manual is the complete reference document for the PC70-8 excavator, covering machines from serial number 10407 and up. This is the same manual referenced under document number PEN00808-00 and covers every aspect of safe operation, daily inspection, and scheduled maintenance for this machine.

Whether you have just taken delivery of a PC70-8 or you are keeping an older unit running, this manual gives you the information needed to operate, service, and maintain the machine correctly. It is written for operators and maintenance personnel, and every section assumes the reader needs practical, on-the-machine knowledge rather than theory.

File Details

• Manual type: Operation & Maintenance Manual
• Brand: Komatsu
• Model: PC70-8 Hydraulic Excavator
• Serial numbers covered: 10407 and up
• Document number: PEN00808-00
• Language: English
• File format: PDF
• Publication reference: 10-15
• Copyright: 2015 Komatsu Ltd.

Chapters Covered

• Introduction — use of machine, directions, visibility from operator’s seat
• Product Information — machine serial number plate, engine serial number plate, service meter location
• Safety Information — signal words, safety labels and their locations
• General Precautions Common to Operation and Maintenance — safe operation, machine understanding, protective equipment, fire prevention
• Precautions for Operation — jobsite investigation, working on loose ground, high-voltage cables, visibility, signalman’s signals
• Precautions for Maintenance — warning tags, workplace cleanliness, high-place work, high-pressure oil and fuel, accumulators
• Machine View Illustrations — overall machine view, component locations
• Detailed Controls and Gauges — monitoring system, emergency monitors, caution monitors, gauges, ECO gauge, function switches
• Switches — starting switch, fuel control dial, lamp switch, emergency pump drive switch, swing parking brake cancel switch
• Control Levers and Pedals — lock lever, travel levers, work equipment control levers, blade control lever, attachment control pedal
• Sun Roof, Windshield, Door Lock, Emergency Escape Hammer
• Cover with Lock, Engine Hood, Cooling Cover
• Air Conditioner Controls — automatic and manual operation, vent selection, FRESH/RECIRC
• Radio — volume control knob type and button type, preset stations, time adjustment
• Fuse, Fusible Link, Battery Disconnect Switch, Auxiliary Electric Power
• Machine Operations and Controls — walk-around checks, before starting engine, starting engine, after starting engine
• Stopping the Engine, Machine Operation, Steering, Swinging
• Work Equipment Controls and Operations, Working Mode
• Prohibited Operations, General Operation Information, Traveling on Slopes, Escape from Mud
• Recommended Applications, Bucket Replacement and Inversion, Parking Machine
• Transportation, Loading and Unloading with Trailer, Lifting Machine
• Cold Weather Operation, Long Term Storage
• Troubles and Actions — running out of fuel, discharged battery, starting engine with booster cables, other trouble
• Maintenance Information, Outline of Service
• Wear Parts List, Recommended Fuel, Coolant and Lubricant, Tightening Torque Specifications
• Safety Critical Parts List
• Maintenance Schedule — when required, every 100, 250, 500, 1000, 2000, 4000 and 5000 hours
• Maintenance Procedure — air cleaner, cooling system, track tension, bucket teeth, air conditioner, hydraulic system
• Specifications — operating weight, engine, dimensions, working ranges
• Attachments and Options — general information, bucket with hook, machine ready for attachment
• Attachment Guide and Recommended Attachment Operations — hydraulic breaker, crusher
• Handling Machines Equipped with KOMTRAX
• Index

The manual opens with the safety material that matters most on a compact excavator: signal words, safety labels and their locations, and the general precautions that apply before any operation or maintenance. From there it walks through the machine itself — controls and gauges, the monitoring system with its emergency and caution monitors, the switches, lock lever, work equipment control levers and travel levers. A dedicated section covers the cab, including the sun roof, windshield, door lock and emergency escape hammer.

The Operation section is where most owners spend their time. It covers the walk-around checks before starting, engine starting in normal and cold conditions, warm-up procedures for both the engine and the hydraulic equipment, breaking-in a new machine, working mode selection and the full range of operating techniques. Traveling on slopes, escaping from mud, and prohibited operations are all treated in detail, along with parking and transportation.

The Maintenance portion is extensive and is built around a schedule chart running from “when required” checks through every 100, 250, 500, 1000, 2000, 4000 and 5000 hours. Each interval has its own procedure with tightening torques, capacities and step-by-step instructions. Separate procedures cover the air cleaner element, cooling system, track tension and shoe bolts, bucket teeth, air conditioner service, hydraulic oil and filter changes, fuel filters, and the swing machinery and final drive cases. The manual also includes a wear parts list and a safety critical parts list with replacement intervals.

The Troubles and Actions chapter covers practical failures: running out of fuel and bleeding the air, a discharged battery, removal and installation of the battery, charging, starting with booster cables, towing, and a troubleshooting table for the electrical system, chassis and engine. The electronic control system section lists the error codes shown on the machine monitor along with the action required for each.

Rounding out the manual are the Specifications chapter with operating weights, dimensions and working ranges, and the Attachments and Options chapter covering the bucket with hook, machines prepared for attachment, hydraulic breaker and crusher operation, and KOMTRAX-equipped machines.

What This Manual Lets You Do

With the PC70-8 Operation & Maintenance Manual in hand, an owner or technician can carry out every scheduled service task on the machine without guessing at capacities, torque values or procedures. The maintenance schedule chart alone makes it possible to plan a full service programme, and each procedure gives the exact refill quantities, tightening torques and inspection criteria needed to do the job correctly.

For day-to-day operation, the manual explains how the monitoring system behaves under normal and abnormal conditions, what each warning means, and what to do when a monitor lights up. That alone can prevent a minor fault from becoming a major repair. The troubleshooting tables cover the most common electrical, chassis and engine problems and point towards the likely cause and remedy.

The safety sections are not filler — they describe the specific hazards of this machine, including swing range, high-voltage cables, high-pressure oil, hot coolant and accumulators, with the precautions that apply in each case.

Why Correct Procedures and Specifications Matter

Compact excavators like the PC70-8 work hard in demanding conditions. Incorrect hydraulic oil levels, wrong filter cartridges, neglected track tension or missed greasing intervals all shorten component life and lead to premature failure. The manual gives the correct specification for every fluid and filter, the correct interval for every service item, and the correct torque for every critical fastener.

Operating procedures matter just as much. Working on slopes, traveling with the work equipment at the wrong height, or using the machine in ways the manual prohibits can damage the machine or create a serious safety risk. The manual sets out exactly what is and is not acceptable.

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Instant PDF Delivery

The Komatsu PC70-8 Operation & Maintenance Manual is delivered as an instant PDF download after payment. There is no shipping and no waiting. The file can be viewed on any device — laptop, tablet or phone — and printed pages can be taken straight to the machine. Keep a copy in the cab and another in the workshop so the manual is always at hand when you need it.