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Komatsu WA120-1LC Wheel Loader Operation and Maintenance Manual (CEADW16041)

Format: PDF (Printable Document)

File Language: English

File Pages: 171

File Size: 9.37 MB (Speed Download Link)

Brand: Komatsu

Model: WA120-1LC Wheel Loader

Book No: CEADW16041

Type of Document: Operation and Maintenance Manual

Categories: ,

$ 40

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Komatsu WA120-1LC Wheel Loader Operation and Maintenance Manual (CEADW16041)

Komatsu WA120-1LC Wheel Loader Operation and Maintenance Manual (CEADW16041)

On a WA120-1LC working in yards, small quarries, or construction backfill, this Operation and Maintenance Manual is what I use to keep the loader reliable day after day. It walks you through how to run the machine without abusing it, and how to set a steady service rhythm so you’re not wrenching on it during peak work. If, for example, the loader starts feeling sluggish on travel or during repeated load cycles, I’d use this manual to trace likely maintenance items, inspect wear points, and verify basic adjustments before calling in heavier diagnostics.

Applications & Use Cases

  • Set up a preventive maintenance schedule that fits your actual workload and conditions.
  • Plan inspections around pins, bushings, tires, and linkages to catch play and cracks early.
  • Check proper warm‑up, shutdown, and operating habits so operators don’t shorten component life.
  • Verify service points and access panels before starting a job, saving time in the field.
  • Coordinate parts ordering by knowing what will need attention before the next big push.

FAQ

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

A: Yes, it’s practical to use digitally; you can zoom diagrams and search terms while you’re at the machine.

Q: Is it worth printing sections of this manual?

A: I’d print the daily and periodic checks so operators can mark off tasks and note issues on the spot.

Safety Note

Always follow the manual’s safety directions before inspecting, adjusting, or servicing any part of the loader.

📘 Show Index

Komatsu WA120-1LC 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
    • SAFETY PRODUCT GRAPHICS AND LOCATIONS
  • OPERATION — SECTION 2
    • GENERAL VIEW
    • INSTRUMENTS AND CONTROLS
      • CLUSTER GAUGE
      • PILOT LAMPS, METERS
      • SWITCHES
      • PEDALS AND LEVERS
      • CAB DOOR HOLD OPEN LOCK – IF EQUIPPED
      • FUSE BOX
      • OPERATOR’S SEAT
      • RIGHT SIDE ARMREST
      • SEAT BELT
    • ClGARETTE LIGHTER
    • AIR CLEANER SERVICE INDICATOR
    • FRAME LOCKING BAR
    • DRAWBAR PIN
    • CAB HEATER AND DEFROSTER
      • CONTROL PANEL
    • CHECK BEFORE STARTING
      • WALK-AROUND CHECK
      • CHECK AND REFILL COOLANT
      • CHECK OIL LEVEL AND REFILL IN ENGINE OIL PAN
      • CHECK FUEL LEVEL AND REFILL FUEL
      • CHECK AIR CLEANER SERVICE INDICATOR
      • CHECK AND REFILL OF OIL IN BRAKE OIL TANK
      • ADDITIONAL CHECKS
      • CHECK ELECTRICAL WIRING
      • DRAIN THE WATER FROM PRIMARY FUEL FILTER/WATER SEPARATOR
    • OPERATING YOUR MACHINE
      • BEFORE STARTING THE ENGINE
      • STARTING ENGINE
      • COLD WEATHER STARTING
      • CHECKS AFTER STARTING
      • COLD WEATHER WARM-UP PROCEDURE
      • MOVING MACHINE OFF
      • CHANGING GEAR SPEED
      • CHANGING DIRECTION
      • TURNING
      • TO STOP THE MACHINE
      • TO STOP THE ENGINE
      • OPERATIONS AFTER STOPPING ENGINE
      • OPERATIONAL PRECAUTIONS
      • PRECAUTIONS WHEN DRIVING UP OR DOWN SLOPES
      • PARKING MACHINE
      • PRECAUTIONS WHEN TIRE CHAINS ARE FllTED
    • 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 CUTTlNG EDGE – IF EQUIPPED
      • BUCKET TEETH – IF EQUIPPED
      • PARKING BRAKE
    • CHECK BEFORE STARTING
    • EVERY 50 HOURS SERVICE
      • FUEL TANK
      • TIRES
    • EVERY 100 HOURS SERVICE
      • HYDRAULIC TANK
      • LUBRICATING
    • EVERY 250 HOURS SERVICE
      • LUBRICATING
      • WHEEL HUB BOLTS
      • ENGINE OIL PAN AND FILTER
      • BATTERY ELECTROLYTE
      • AIR INTAKE SYSTEM
    • EVERY 500 HOURS SERVICE
      • LUBRICATING
      • FUEL FILTERS
      • TRANSMISSION OIL FILTER
      • ANTIFREEZE CONCENTRATION
    • EVERY 1000 HOURS SERVICE
      • LUBRICATING
      • HYDRAULIC TANK AND FILTER
      • 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
      • BRAKE DISC
      • VIBRATION DAMPER
      • COOLING SYSTEM
  • 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 FITTINGS
    • UNIT CONVERSIONS
      • AREA
      • DENSITY (Mass Density)
      • FORCE
      • FORCE PER LENGTH
      • HEAT
      • LENGTH
      • MASS (WEIGHT)
      • POWER
      • PRESSURE
      • TEMPERATURE
      • TEMPERATURE INTERVAL OR TOLERANCE
      • VOLUME
      • TORQUE
      • VELOCITY

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