Komatsu 930E-4AT Autonomous Haulage System Dump Truck Shop Manual – CEBM021601

Description

Komatsu 930E-4AT AHS Shop Manual – CEBM021601

The Komatsu 930E-4AT Autonomous Haulage System Dump Truck Shop Manual is the full service, diagnostic and calibration reference for the AHS-equipped 930E-4AT mining truck. Issued under form number CEBM021601 and covering machine serial numbers A30504 and up, this Komatsu 930E-4AT AHS shop manual goes far beyond a standard truck repair book: it documents the controller architecture, the position measurement stack, drive control, the safety control layer, obstacle detection radar, and the enormous fault-code trees that keep an autonomous haul truck running safely at the mine site.

Every chapter in this autonomous haulage system dump truck manual is written for the technician who is actually on the machine — checking a GPS indicator, swapping a steering potentiometer, re-bleeding an EPC valve, initialising a steered radar motor, calibrating the REG laser, or reading a fault code on the colour graphic console. If you maintain, calibrate or troubleshoot Komatsu 930E-4AT AHS trucks, this is the reference that tells you the standard value, the connector pin, the wire number and the recovery sequence.

File Details

• Manual type: Shop Manual (Autonomous Haulage System)
• Brand / Manufacturer: Komatsu
• Model: 930E-4AT
• Serial numbers: A30504 and up
• Document number: CEBM021601
• Date: 04-11 (April 2011)
• Language: English
• Page count: Approximately 920 pages
• File format: PDF (instant download)

Chapters Covered in This 930E-4AT AHS Manual

The manual is organised into the standard Komatsu shop-manual section numbering, plus a deep AHS-specific structure-and-function block and an exceptionally long troubleshooting block.

• 00 – Index and Foreword
  • Composition of shop manual, table of contents, section form numbers
• 01 – Specifications and Technical Data
  • Specifications, general view of autonomous truck, controller configuration
  • Drive control system, safety control system, 930E-AT component locations
• 10 – Structure and Function
  • Selection of Auto/Manual mode, embedded module for supervisory system, navigation
  • Drive control system, position measurement system
  • Travel control system, dump control system, MBI controller
  • Safety control system, obstacle detection system, warning indicator monitoring
  • Auxiliary device control, observer controller, flight recorder system
• 30 – Testing and Adjusting
  • Position Measurement System: front/rear pulse sensor adjustment, roll sensor, pitch sensor, GPS origin configuration, gyro sensor adjustment, REG laser distance calibration, parameter confirmation, REG fibre-optic cable check and installation
  • Drive Control System: steering angle potentiometer adjustment, steering EPC valve adjustment, drive control parameter confirmation
  • Obstacle Detection System: calibration procedure, radar steering motor angle initialisation, radar elevation angle, radar output range, radar azimuth angle, safety controller confirmation parameters
  • Flight Recorder: installation and troubleshooting
  • Replace Condition: periodic replacement, when adjustment is required
• 40 – Troubleshooting
  • Travel Control System – Fault Code List
  • System Caution, Heartbeat and Communication between controllers MBI, PLM3, Observer, Safety (Fault Codes 4001-40F9)
  • Steering System fault codes (4101-4118)
  • F-N-R Selector and Acceleration Control fault codes (4202-4307)
  • Brake System fault codes (43A0-43D6)
  • Body Control System fault codes (4402-4414)
  • Operation fault codes (4502-4527)
  • Warning codes (8003-8528)
  • Position Measurement System – GPS indicator status, GPS system, GYRO system, tire sensor, slope sensor, moving direction, REG system, sensor fusion, NVRAM and software exceptions
  • Safety Control System – fault-code list, error messages, warning messages
  • Observer Controller – LED display, heartbeat, batteries, power supply, A/M key switch, auto apply brake, brake lock, park brake
  • How to use the Monitor PC
  • AHT System Inspection

What this Komatsu 930E-4AT autonomous dump truck repair manual delivers is not just a list of chapters — it is the working logic of the whole AHT system. The Structure and Function section explains how the Drive controller, Safety controller and Observer controller each behave, how the drive controller reads GPS, GYRO, tire pulse, pitch and roll sensors into a fused position, how the safety layer watches heartbeat lines and throws the auto-apply brake, and how the supervisory HUB and CGC exchange trajectory and speed profile data with Central. The Testing and Adjusting section turns that theory into concrete calibration jobs with the standard values and connector references you need on the truck. And the Troubleshooting section is the largest part of the file: fault code by fault code, with possible causes, remedy steps, expected behaviour, schematic sheet references, and diagnostic flow charts for steering, brakes, F-N-R, hoist, propulsion, position measurement, obstacle detection, and the safety controller itself.

What This Komatsu 930E-4AT AHS Shop Manual Lets You Do

Mining operations running 930E-4AT AHS trucks cannot afford guesswork. A steering potentiometer that drifts a couple of degrees, a REG laser that mis-reads berm distance, or an ODS radar that will not scan will suspend a truck, and sometimes a whole circuit. This autonomous haulage system shop manual gives you the exact values and procedures to bring each subsystem back into specification rather than swapping parts blindly.

• Calibrate steering potentiometers, steering EPC valves, pitch and roll sensors, GYRO, GPS origin and REG laser distance using the CGC maintenance menus described in the manual.
• Initialise steered radar motor angle, set radar elevation, output range and azimuth angle during ODS calibration, and confirm safety controller parameters.
• Diagnose travel, steering, F-N-R, acceleration, brake, body and operation fault codes with the full code list and the possible-cause / remedy table for each code.
• Interpret GPS, GYRO, tire-sensor, slope-sensor, REG, sensor-fusion and NVRAM warnings to decide whether the truck can continue autonomous travel or needs to be suspended and recovered.
• Work through Safety controller error and warning messages, including radar diagnosis for right, centre, left and steered radar, engine start/stop, mode lamps, headlight, horn, brake lock and auto apply brake circuits.
• Read the observer controller LED codes, check its backup battery and power supplies, and verify the A/M key switch, park brake and auto apply brake logic.
• Use the Monitor PC (ATMonitor) I/O windows to read drive and safety controller inputs and outputs during service.
• Carry out the AHT system inspection sequence — emergency switch, mode lamps, headlights, horn, caution lamps and ODS — before releasing a truck to autonomous travel.

Why Correct Procedures and Specifications Matter on a 930E-4AT

The 930E-4AT is a 202,232 kg operating-weight, 296,728 kg hauling-capacity truck with a gross vehicle weight of 498,960 kg, capable of autonomous forward travel up to 50 km/h with tracking accuracy specified to within +/-1.9 m on haul road and stopping accuracy to within +/-1.5 m at loading and dumping points. Those tolerances are achieved by a stack of GPS, dead-reckoning and road-edge-guidance systems feeding a drive controller that steers, accelerates and brakes the machine. Any calibration step performed sloppily — a potentiometer set to the wrong centre value, a REG target distance set without a 5500 mm reference board, a GYRO adjusted while the truck is moving — undermines the whole navigation chain. This Komatsu 930E-4AT AHS manual exists precisely to prevent that: it is the difference between clearing a fault and re-creating it.

The fault-code troubleshooting chapters are also the only reliable way to tell a genuine hardware failure from a road-condition or calibration issue. The manual repeatedly separates causes into electrical, hydraulic, calibration and road-condition categories, and gives the exact wiring numbers, connector references, relay identifiers, coil resistances and voltage ranges to test against. That structure is what makes this AHS dump truck fault-code manual usable on a live truck, not just on a desk.

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Instant PDF Delivery

The Komatsu 930E-4AT Autonomous Haulage System Dump Truck Shop Manual CEBM021601 is delivered as an instant-download PDF. No shipping, no waiting, no physical binder to lose. Read it on a laptop in the maintenance bay, on a tablet on the deck, or print the sections you need and take them to the machine. Once purchased, the file is yours to keep and reference whenever a 930E-4AT AHS truck throws a steering, brake, position-measurement, ODS or safety-controller fault — or whenever you simply need to confirm a calibration value before you touch the truck.