Komatsu HM400-3 Dump Truck Operation & Maintenance Manual
388 pages · Publication TEN00580-03
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- Models
- HM400-3
- Serial coverage
- 3001 and up
- Manual type
- Operation & Maintenance Manual
- Pages
- 388
- Publication
- TEN00580-03
- Condition
- Brand new

What's inside
From the manual's own table of contents: 79 sections, 154 entries. See sample pages (PDF, 452 KB)
INTRODUCTION3 topics
- USE OF MACHINE
- DIRECTIONS OF MACHINE
- VISIBILITY FROM OPERATORS SEAT
PRODUCT INFORMATION4 topics
- PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE
- EPA REGULATIONS, ENGINE NUMBER PLATE
- SERVICE METER LOCATION
- YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR
SAFETY LABELS2 topics
- LOCATION OF SAFETY LABELS
- SAFETY LABELS
GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTENANCE9 topics
- PRECAUTIONS BEFORE STARTING OPERATION
- PREPARATIONS FOR SAFE OPERATION
- FIRE PREVENTION
- PRECAUTIONS WHEN GETTING ON OR OFF MACHINE
- DO NOT GET CAUGHT IN WORK EQUIPMENT
- PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES
- UNAUTHORIZED MODIFICATION
- PRECAUTIONS RELATED TO ATTACHMENTS AND OPTIONS
- PRECAUTIONS WHEN RUNNING ENGINE INSIDE BUILDING
PRECAUTIONS FOR OPERATION5 topics
- PRECAUTIONS FOR JOBSITE
- STARTING ENGINE
- OPERATION
- TRANSPORTATION
- TOWING
PRECAUTIONS FOR MAINTENANCE3 topics
- PRECAUTIONS BEFORE STARTING INSPECTION AND MAINTENANCE
- PRECAUTIONS FOR INSPECTION AND MAINTENANCE
- TIRES
GENERAL VIEW2 topics
- GENERAL VIEW OF MACHINE
- GENERAL VIEW OF CONTROLS AND GAUGES
EXPLANATION OF COMPONENTS14 topics
- MACHINE MONITOR
- SWITCHES
- CONTROL LEVERS AND PEDALS
- CIGARETTE LIGHTER
- ASHTRAY
- DRINK BOX
- CUP HOLDER
- HANDY TRAY
- MAGAZINE BOX
- EMERGENCY ESCAPE HAMMER
- HANDLING AIR CONDITIONER
- HANDLING RADIO
- AUXILIARY ELECTRIC POWER
- FUSE
Show all 79 sections
ALWAYS USE CLEAN WASHER FLUID12 topics
- FRESH AND CLEAN LUBRICANTS
- CHECK DRAINED OIL AND USED FILTER
- CAUTION FOR REFILLING OIL OR FUEL
- WELDING INSTRUCTIONS
- DO NOT DROP THINGS INSIDE MACHINE
- DUSTY JOBSITES
- AVOID MIXING OIL
- LOCKING INSPECTION COVERS
- BLEEDING AIR FROM HYDRAULIC CIRCUIT
- PRECAUTIONS WHEN INSTALLING HYDRAULIC HOSES
- CHECKS AFTER INSPECTION AND MAINTENANCE
- FUEL AND LUBRICANTS TO MATCH THE AMBIENT TEMPERATURE
OUTLINE OF MAINTENANCE2 topics
- HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC
- HANDLING ELECTRICAL COMPONENTS
STANDARD TIGHTENING TORQUE FOR BOLTS AND NUTS1 topic
- TIGHTENING TORQUE LIST
MAINTENANCE SCHEDULE1 topic
- MAINTENANCE SCHEDULE TABLE
MAINTENANCE PROCEDURE13 topics
- INITIAL 250 HOURS MAINTENANCE (ONLY AFTER THE FIRST 250 HOURS)
- WHEN REQUIRED
- CHECKS BEFORE STARTING
- EVERY 50 HOURS MAINTENANCE
- EVERY 250 HOURS MAINTENANCE
- EVERY 500 HOURS MAINTENANCE
- EVERY 1000 HOURS MAINTENANCE
- EVERY 2000 HOURS MAINTENANCE
- EVERY 4000 HOURS MAINTENANCE
- EVERY 4500 HOURS MAINTENANCE
- EVERY 6000 HOURS MAINTENANCE
- EVERY 8000 HOURS MAINTENANCE
- EVERY 9000 HOURS MAINTENANCE
SAFETY CRITICAL PARTS1 topic
- SAFETY CRITICAL PARTS LIST
CONSUMABLE PARTS1 topic
- CONSUMABLE PARTS LIST
RECOMMENDED FUEL, COOLANT, AND LUBRICANT2 topics
- LUBRICATION CHART
- TEMPERATURE
Inside this manual
Real pages from this operation & maintenance manual (388 pages). Open the sample pages (PDF, 452 KB)
- Controls and operation, page 278: TROUBLES AND ACTIONS
- Maintenance, page 338: MAINTENANCE PROCEDURE
- Specifications, page 368: SPECIFICATIONS
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the HM400-3 are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
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This is an operator's manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 388 pages
Quantity one is the manual described above.
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Ships in 1 business day.
60-day returns
Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy
Binder not included
Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.
Other editions and similar models
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).