Komatsu WA250-1LC Wheel Loader Operation and Maintenance Manual (CEADW18021)

Komatsu WA250-1LC Wheel Loader Operation and Maintenance Manual (CEADW18021)

Format: PDF (Printable Document)

File Language: English

File Pages: 207

File Size: 10.95 MB (Speed Download Link)

Brand: Komatsu

Model: WA250-1LC Wheel Loader

Book No: CEADW18021

Type of Document: Operation and Maintenance Manual

Categories: Komatsu PDF, PDF

$ 40

Komatsu WA250-1LC Wheel Loader Operation and Maintenance Manual (CEADW18021)

On a WA250-1LC working in quarries, feed yards, or construction sites, this Operation and Maintenance manual is what I’d use to keep the loader reliable day after day. It walks you through how to run the machine correctly and how to set up a steady maintenance rhythm so you’re not chasing breakdowns. If, for example, the loader starts feeling sluggish when loading trucks, this book helps you sort out whether you’re looking at an operating issue, a basic service item, or something that needs a mechanic.

Applications & Use Cases

Plan routine services so filters, belts, and wear points get checked before they cause downtime.
Set a practical inspection routine for shift-start walkarounds and weekly checks.
Trace early wear signs in pins, bushings, and tires by following the suggested inspection logic.
Verify correct operating practices for loading, travel, and parking to reduce stress on driveline and brakes.
Coordinate parts ordering by matching what you see on the machine with the manual’s guidance before you call the dealer.

FAQ

Q: Can I keep this manual on a tablet in the cab?

A: Yes, that’s common; just make sure it’s readable offline and protected from dust and vibration.

Q: Is it worth printing certain pages?

A: I’d print the daily/periodic check pages and keep them in a plastic sleeve in the shop for quick reference.

Safety Note

Always follow the manual’s safety directions before inspecting, adjusting, or working under any raised component.

📘 Show Index

Komatsu WA250-1LC Wheel Loader Index:

MAIN MENU
FOREWORD
INTRODUCTION
- SAFETY INFORMATION
- BREAKING IN THE NEW MACHINE
- MACHINE AND ENGINE SERIAL NUMBERS
- QUICK REFERENCE INFORMATION
- CONTENTS
SAFETY PRECAUTIONS — SECTION 1
- GENERAL PRECAUTIONS
  - PERSONNEL PRECAUTIONS
  - MACHINE PRECAUTIONS
- OPERATION
  - BEFORE STARTING
  - START-UP
  - GENERAL OPERATING PRECAUTIONS
  - DRIVING THE MACHINE
  - OPERATING THE ATTACHMENTS
  - PULLING/TOWING
  - SHUTDOWN
- MAINTENANCE
  - GENERAL MACHINE PRECAUTIONS
  - GENERAL WORK PRECAUTIONS
  - ATTACHMENTS
  - BRAKES
  - CAB/ROPS
  - COOLING
  - ELECTRICAL
  - ENGINE
  - FUEL SYSTEM
  - HYDRAULICS
  - TIRES AND RIMS
  - TURBOCHARGER
  - VITON SEALS
- SAFETY PRODUCT GRAPHICS AND LOCATIONS
  - BEFORE CARRYING OUT MAINTENANCE
OPERATION — SECTION 2
- GENERAL VIEW
- INSTRUMENTS AND CONTROLS
  - MONITOR PANEL
  - SWITCHES
  - LEVERS AND PEDALS
  - CAB DOOR HOLD OPEN LOCK – IF EQUIPPED
  - AIR CLEANER SERVICE INDICATOR
  - FRAME LOCKING BAR
  - ENGINE SIDE DOOR LOCK
  - MAIN CIRCUIT BREAKER
  - CIGARETTE LIGHTER
  - FUSE BOXES
  - OPERATOR’S SEAT
  - RIGHT SIDE ARMREST
  - SEAT BELT
- DRAWBAR PIN
- CAB HEATER AND DEFROSTER
  - CONTROL PANEL
  - CONTROL PANEL
  - METHOD OF OPERATION
- CAB HEATER, DEFROSTER AND AIR CONDITIONER – IF EQUIPPED
  - CONTROL PANEL
  - METHOD OF OPERATION
- LOCKING FILLER CAPS
  - FUEL TANK FILLER CAP
  - HYDRAULIC TANK FILLER CAP
- CHECK BEFORE STARTING
  - WALK-AROUND CHECK
  - CHECK MONITOR PANEL
  - CHECK AND REFILL COOLANT
  - CHECK AIR CLEANER SERVICE INDICATOR
  - CHECK OIL LEVEL AND REFILL IN ENGINE OIL PAN
  - CHECK FUEL LEVEL AND REFILL FUEL
  - CHECK AND REFILL OIL IN BRAKE OIL TANK
  - DRAIN THE WATER FROM THE FUEL-WATER SEPARATOR
  - ADDITIONAL CHECKS
  - CHECK ELECTRICAL WIRING
- OPERATING YOUR MACHINE
  - BEFORE STARTING THE ENGINE
  - STARTING ENGINE
  - COLD WEATHER STARTING
  - COLD WEATHER WARM-UP PROCEDURE
  - CHECKS AFTER STARTING
  - MOVING MACHINE OFF
  - SHIFTING GEAR
  - SHIFTING BETWEEN FORWARD AND REVERSE
  - STEERING MACHINE
  - TO STOP THE MACHINE
  - TO STOP THE ENGINE
  - OPERATIONS AFTER STOPPING ENGINE
  - OPERATIONAL PRECAUTIONS
  - PRECAUTIONS WHEN DRIVING UP OR DOWN SLOPES
  - PARKING MACHINE
- ADJUSTMENT OF WORK EQUIPMENT
  - ADJUSTING BOOM KICKOUT
  - ADJUSTING BUCKET POSITIONER
  - BUCKET LEVEL INDICATOR
- HANDLING TIRES
  - PRECAUTIONS WHEN HANDLING TIRES
  - PRECAUTIONS WHEN DRIVING MACHINE
  - TIRE PRESSURE
- TOWING
  - TOWING THE MACHINE
- TRANSPORTATION
- COLD WEATHER OPERATION
  - PREPARATION FOR LOW TEMPERATURE
  - CAUTIONS AFTER COMPLETION OF WORK
- AFTER COLD WEATHER
- LONG TERM STORAGE
  - BEFORE STORAGE
  - DURING STORAGE
  - AFTER STORAGE
- HANDLING OF BATTERY
  - PRECAUTIONS FOR CHARGING BATTERY
  - REMOVAL AND INSTALLATION OF BATTERY
  - STARTING ENGINE WITH BOOSTER CABLES
- TROUBLESHOOTING
  - ELECTRICAL SYSTEM
  - ENGINE
  - CHASSIS
MAINTENANCE — SECTION 3
- PERIODIC MAINTENANCE
- MAINTENANCE GUIDELINES
- OUTLINES OF SERVICE
  - LUBRICATION WHEN SHIPPED
  - RELATING TO ENGINE
  - RELATING TO HYDRAULIC SYSTEM
  - RELATING TO ELECTRICAL SYSTEM
  - RELATING TO LUBRICATION
  - BLEEDING AIR
- WEAR PARTS REPLACEMENT
- PERIODICAL PART REPLACEMENT
- LUBRICANTS, FUEL AND COOLANT
  - PROPER SELECTION TABLE
- SCHEDULED MAINTENANCE GUIDE
- OIL FILLER AND LEVEL GAUGE POSITIONS
- INITIAL 250 HOURS SERVICE ONLY
  - TRANSMISSION OIL FILTER
- WHEN REQUIRED
  - COOLANT ADDITIVE CONCENTRATION – DCA4
  - AIR CLEANER ELEMENT
  - TRANSMISSION OIL
  - RADIATOR CORE
  - WINDSHIELD WASHER TANKS
  - DRIVE AXLE OIL
  - DRIVE AXLE HOUSING BREATHERS
  - LUBRICATING
  - BUCKET BOLT-ON CUlTING EDGE – IF EQUIPPED
  - BUCKET TEETH – IF EQUIPPED
  - PARKING BRAKE
  - LENGTH OF LEVER
  - AIR CONDITIONER CONDENSER – IF EQUIPPED
  - AIR CONDITIONER REFRIGERANT CHARGE – IF EQUIPPED
  - STEERING
  - HYDRAULIC SYSTEM
  - SERVICE METER
- CHECK BEFORE STARTING
- EVERY 50 HOURS SERVICE
  - FUEL TANK
  - TIRES
- EVERY 100 HOURS SERVICE
  - HYDRAULIC TANK
  - LUBRICATING
  - CAB AIR FILTER – IF EQUIPPED
  - AIR CONDITIONER FILTER – IF EQUIPPED
- EVERY 250 HOURS SERVICE
  - LUBRICATING
  - WHEEL HUB BOLTS
  - ENGINE OIL PAN AND FILTER
  - BATTERY ELECTROLYTE
  - AIR INTAKE SYSTEM
  - AIR CONDITIONER COMPRESSOR DRIVE BELT – IF EQUIPPED
- EVERY 500 HOURS SERVICE
  - LUBRICATING
  - FUEL FILTERS
  - TRANSMISSION OIL FILTER
  - ANTIFREEZE CONCENTRATION
  - AIR DRYER – IF EQUIPPED
- EVERY 1000 HOURS SERVICE
  - LUBRICATING
  - TRANSMISSION CASE BREATHER
  - TRANSMISSION OIL AND STRAINER
  - ENGINE VALVES
  - DRIVE BELT
  - DRIVE BELT, TENSIONER BEARING AND FAN HUB
- EVERY 2000 HOURS SERVICE
  - DRIVE AXLES
  - HYDRAULIC TANK BREATHER
  - HYDRAULIC TANK AND FILTER
  - BRAKE DISC
  - VIBRATION DAMPER
  - COOLING SYSTEM
  - AIR CONDITIONER FILTER
SPECIFICATIONS — SECTION 4
- GENERAL SPECIFICATIONS
- STANDARD TIGHTENING TORQUES
  - STANDARD TIGHTENING TORQUE OF BOLTS AND NUTS
  - TIGHTENING TORQUE OF SPLIT FLANGE BOLTS
  - TIGHTENING TORQUE FOR NUTS OF FLARED Fll-l-INGS
- UNIT CONVERSIONS
  - AREA
  - DENSITY (Mass Density)
  - FORCE
  - FORCE PER LENGTH
  - HEAT
  - LENGTH
  - MASS (WEIGHT)
  - POWER
  - PRESSURE
  - TEMPERATURE
  - TEMPERATURE INTERVAL OR TOLERANCE
  - VOLUME
  - TORQUE
  - VELOCITY