Komatsu 980E-4 Dump Truck Shop Manual CEBM031601 – Complete Service & Repair PDF for Serial A40052 and Up

Description

Komatsu 980E-4 Dump Truck Shop Manual – CEBM031601

This is the complete Komatsu 980E-4 Dump Truck Shop Manual, document number CEBM031601, covering machines from serial number A40052 and up and equipped with the 18V170 engine. It is the same comprehensive workshop reference used by professional technicians for servicing, diagnosing, and rebuilding the 980E-4 dump truck. Whether you are performing routine maintenance, troubleshooting an electrical fault, or undertaking a major component overhaul, this manual provides the procedures, specifications, and diagrams required to do the job correctly.

File Details

• Manual Type: Shop Manual (Service, Repair & Maintenance)
• Brand: Komatsu
• Model: 980E-4 Dump Truck
• Serial Number Range: 980E-4 A40052 and up (some sections also reference A40003 and up and 980E-4AT A40083 and up)
• Engine: 18V170 (Komatsu SSDA18V170)
• Language: English
• Page Count: Approximately 1,154 pages
• File Format: PDF
• Document Number: CEBM031601

Chapters Covered

• 00 Index and Foreword
• 01 Specification
• 10 Structure, Function and Maintenance Standard
• 20 Standard Value Table
• 30 Testing and Adjusting
• 40 Troubleshooting
• 50 Disassembly and Assembly
• 90 Diagrams and Drawings

00 Index and Foreword

This opening chapter provides the full table of contents and manual composition, followed by critical safety information. It includes general safety rules, precautions before and while operating the truck, working near batteries, tire safety, welding precautions, and the capacitor discharge system procedure for the AC drive truck. Standard tightening torques for SAE and metric hardware and conversion tables are also located here, making it a quick-reference starting point before any repair task.

01 Specification

Contains the specification drawing with overall dimensions, a detailed specifications table, the weight table with component weights, and a comprehensive listing of fuel, coolant, and lubricant types and capacities. This chapter gives you the factory baseline for the 980E-4 — engine output, travel speeds, dump body capacity, tire size and pressure, hydraulic system pressures and flows, and service fill volumes.

10 Structure, Function and Maintenance Standard

This is the largest technical chapter and is divided into several major systems:

• Steering Circuit — operation of the steering/brake pump, bleeddown manifold, steering accumulators, flow amplifier, steering control unit, and high-pressure filter.
• Hoist Circuit — hydraulic tank, hoist pump, high-pressure filters, hoist valve, hoist pilot valve, hoist limit solenoid, overcenter manifold, and hoist cylinder operation through float, power up, hold, power down, and float positions.
• Brake Circuits — general brake system information, service brake circuit operation, secondary braking, automatic brake application (auto apply), parking brake circuit, wheel brake lock circuit, brake warning circuit, and brake assembly wear data.
• Electrical System, 24 Volt — battery supply system, engine starting system with prelube, auxiliary control cabinet components, body-up switch, and hoist limit switch.
• Electrical System, AC Drive — general system operation, drive system controller (DSC), diagnostic information display (DID) panel, DSC software functions, alternator field control, event detection and processing, event logging and storage, abnormal conditions and overriding functions, AC drive system component table, and electronic accelerator and retarder pedals.
• Cab Air Conditioning — general information, principles of refrigeration, air conditioning system components, and air conditioning system electrical circuit.
• Reserve Engine Oil System — general information, operation, service, troubleshooting, and auto fill system electrical schematic.

20 Standard Value Table

Provides the standard service values for the 980E-4. It covers travel speeds, engine speeds, operating forces for steering, accelerator, brake, and directional control levers, suspension cylinder dimensions and nitrogen pressures, accumulator precharge pressures, oil pressures for steering and brakes, and body lift/lower times. This chapter is essential for evaluating whether a component is within specification or requires adjustment or replacement.

30 Testing and Adjusting

Divided into specialized sections covering the following test and adjustment procedures:

• Steering, Brake Cooling and Hoist Hydraulic System — system checkout procedures, data sheet, toe-in adjustment, hoist cylinder leakage test, and steering cylinder leakage test.
• Brake System — brake system checkout, data sheet, brake piston leakage test, brake seal pressure test, oil separator seal pressure test, wet disc brake bleeding, parking brake bleeding, service brake disc wear inspection, parking brake disc wear inspection, brake valve bench test and adjustment, and dual relay valve bench test and adjustment.
• Accumulators and Suspensions — accumulator charging precautions, bladder and piston accumulator charging procedures, storage, leak testing, checking for improper suspension charge, suspension oiling and charging procedures, and suspension pressure test.
• Interface Module (IM) — software and checkout procedures.
• KOMTRAX Plus — software, tools, controller setup, initialization form, controller replacement precautions, and checkout procedure.
• Payload Meter IV — software, tools, system configuration, software installation, and checkout procedure.
• Komatsu Wireless Bridge (KWB) — general information, software download and setup, configuring KWB_Connect and TRUCK_NET devices, changing IP addresses, connecting to a wireless network, and troubleshooting.
• Electrical System, AC Drive — general information, checks prior to self load engine test, engine running tests, diagnostic information display (DID) panel, viewing event and statistical data, logic screens, datalogger function, and uploading data.
• Cab Air Conditioning — general information, service tools, leak detection, system performance test, checking system oil, system flushing, manifold gauge set installation, recovering and recycling refrigerant, evacuating, and charging the system.

40 Troubleshooting

This chapter is organized into several major parts for systematic fault diagnosis:

• Fuse, Diode and Relay Locations — VEC-89, VEC-90, VEC-91, and RTMR1 vehicle electrical center layouts.
• AC Drive System Fault Codes — DID panel fault code tables for the propulsion control, inverter 1 and 2, and truck control portions of the drive system controller.
• Troubleshooting by Fault Code, Parts 1 through 6 — detailed fault code descriptions, fault conditions, operator alerting, system response, resulting problems, related information, parameter tables with expected states, and related circuit diagrams. Fault codes covered range from A001 through A365, including suspension pressure sensors, incline sensor, payload meter, body up switch, fuel level sensor, steering pressure, brake pressure, hoist pressure, ambient temperature, hydraulic oil temperature, J1939 data link, auto lube, starter, battery voltage, parking brake, brake lock, engine shutdown delay, and many more.
• Orbcomm — satellite connection troubleshooting.
• Cab Air Conditioning — preliminary checks, diagnosis of gauge readings, and troubleshooting by manifold gauge set readings.
• Steering System — steering circuit troubleshooting chart, guidelines, basic hydraulic system checks, system leakage check, steering pump troubleshooting guide, and pump pressure control checks.

50 Disassembly and Assembly

Provides the step-by-step procedures for component removal, disassembly, assembly, and installation. Major sections include:

• Service Tools — special tool group, additional service tools, and locally made tools.
• Wheels, Spindles and Rear Axle — general precautions, rim components, wheel stud maintenance, front and rear wheel removal and installation, rim and tire service, front wheel hub and spindle removal and disassembly, hub floating ring seal assembly, rear axle removal, anti-sway bar, pivot pin, pivot eye and bearing service, wheel motor removal, and rear brake assembly removal.
• Brake System — brake valve removal, disassembly, dual relay valve, brake manifold, piston brake accumulator, front and rear wheel brake disassembly, brake floating ring seal assembly, parking brake removal and disassembly.
• Steering System — steering control unit, steering column, steering wheel, bleeddown manifold, flow amplifier, steering cylinders and tie rod, steering/brake pump, piston steering accumulator.
• Suspensions — front and rear suspension removal, disassembly, and assembly.
• Hoist Circuit — hoist pump, hoist valve, overcenter manifold, hoist pilot valve, hoist cylinders.
• Body and Structures — dump body, body pads, diagonal ladder/hood and grille, RH and LH decks, fuel tank, fuel gauge sender, hydraulic tank, hydraulic tank strainers.
• Operator Cab — cab removal, cab door, side window glass, windshield and rear window glass, windshield wiper motor, wiper arm, wiper linkage, optional seats, seat belts, electronic accelerator and retard pedals.
• Cab Air Conditioning — replacement of air conditioning system components.
• Power Module — power module removal, alternator, radiator, radiator repair, engine removal.

90 Diagrams and Drawings

Contains the hydraulic circuit diagrams (steering, hoist and brake cooling; brake; auxiliary system) and the electrical circuit diagrams (main electrical schematic and electrical sub-system schematic). These fold-out style schematics show every circuit, connector, wire number, and component for the 980E-4, making them invaluable for tracing faults and understanding system routing.

Why This Komatsu 980E-4 Shop Manual Is Essential

The 980E-4 is a 578,500 lb mining truck powered by a 3,500 hp Komatsu SSDA18V170 engine and driven by an AC electric drive system. Servicing a machine of this size and complexity demands accurate, model-specific information — general truck knowledge is not enough. This manual gives you the exact procedures, tolerances, and specifications that Komatsu published for the 980E-4, so you can complete repairs and adjustments correctly the first time.

With this Komatsu 980E-4 shop manual PDF you can:

• Diagnose and repair faults using the comprehensive fault code troubleshooting section covering the interface module, drive system controller, and all monitored systems.
• Perform complete disassembly and assembly of major components — hoist cylinders, steering cylinders, brake assemblies, wheel motors, suspension cylinders, and the power module — following step-by-step procedures with torque values.
• Test and adjust hydraulic, brake, steering, and suspension systems using the standard value tables and checkout procedures.
• Understand the AC drive electrical system, including the drive system controller (DSC), diagnostic information display (DID), and the many sensors and actuators that keep the truck running.
• Service the cab air conditioning, reserve engine oil system, KOMTRAX Plus, payload meter IV, and Komatsu wireless bridge.
• Reference the hydraulic and electrical schematics for every circuit on the truck.

Having the correct 980E-4 service manual means fewer mistakes, less downtime, and repairs done to factory standards. Whether you are a mine maintenance technician, a fleet manager, or an independent repair shop, this manual provides the depth of information you need to keep a Komatsu 980E-4 dump truck operating safely and efficiently.

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This Komatsu 980E-4 repair manual is delivered as an instant PDF download — no shipping, no waiting. You can access it immediately after purchase and use it on any device: laptop, tablet, or smartphone. Print the pages you need for the job at hand, or keep the entire manual on your computer for quick reference. It is the complete, unabridged shop manual for the Komatsu 980E-4 dump truck.