Komatsu WA420-1LC Wheel Loader Operation & Maintenance Manual
172 pages · Publication SEAMU424KD10
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- Models
- WA420-1LC
- Serial coverage
- WA420-1 A25001 and up
- Manual type
- Operation & Maintenance Manual
- Pages
- 172
- Publication
- SEAMU424KD10
- Condition
- Brand new

What's inside
From the manual's own table of contents: 61 sections, 199 entries. See sample pages (PDF, 329 KB)
GENERAL LOCATIONS AND $PEClFlCATlONS39 topics
- GENERAL LOCATIONS
- PERFORMANCE
- ENGINE
- CHECK MONlTOR GROUP
- Fuel Level Monitor
- CALJTION MONITOR GROUP
- Brake tine Failure Monitor
- Engine Oil Pressure Monitor
- Coolant Temperature Monitor
- Parking Brake Pilot Lamp
- PilotLampforWorkingLamp
- Transmission Cut-Off Selector Pilot Lamp
- Air Pressure Gauge
- Engine Cooling Water Temperature Gauge
- Torque Converter Oil Temperature Gauge
- Fuel Gauge
- Turn Signal Pilot Lamp
- High Beam Pilot Lamp
- Speedometer
- Service Meter
- SWITCHES
- TRANSMISSION CUT-OFF SELECTOR SWITCH
- El-HER STARTSWlTCH
- HORN BlJlTON
- HAZARD LAMP SWITCH
- PARKING BRAKESWITCH
- WORKING IAMP SWITCH
- STARTING SWITCH
- LAMPSWrrCHES
- Lamp switch
- Turn signal lever
- Dimmer switch
- ROOM LAMP SWITCH
- CIGARETTE UGHTER
- ACCELERATOR PEDAL
- LOCK
- Seat height adjustment
- RIGHTSIDEARMREST
- Forward-backward adjustment
OPERATlNGYOUR MACHINE14 topics
- TOSTARTTHEENG~E
- SPECIAL STARTING
- CHECKsAFTERSTARTIN’G’
- TO MOVE THE MACHINE OFF
- CHANGINGGEARSPEED
- CHANGING DlRECTlON
- TURNING
- TOSTOPTHE’MACHINE’
- TO STOP THE ENGINE
- PRECAUTIONS WHEN DRIVING UP OR DOWN SLOPES
- LOWER THE CENTER OF GRAVITY WHEN TURNING
- BRAKING ON DOWNHILL SLOPES
- IF ENGINE STOPS
- PROPERBUCKETANDjidE’
ADJUSTMENT OF WORK EQUIPMENT3 topics
- ADJUSTING BOOM KICKOUT _ . . _
- ADJUSTING BUCKET POSITIONER
- BUCKET LEVEL INDICATOR
HANDLlNGTHETlRES4 topics
- PRECAUTlONS WHEN HANDUNG TIRES
- PRECAUTlONS WHEN DRIVING MACHINE
- TIREPRESSURE
- INFLATING TIRES
TOWING4 topics
- TOWINGTHE MACHINE
- WHEN ENGINECAN BE USED
- WHEN ENGINECANNOT BE USED
- RELEASING PARKING BRAKE
COLD WEATHER OPERATION4 topics
- PREPARATION FOR LOW TEMPERATURE
- FUEL AND LUBRICANTS
- CAUTIONS AFTER COMPLETlON OF WORK
- AFTERCOLDWEATHER
Show all 61 sections
EVERY loo0 HOURS SERVICE6 topics
- TRANSMISSION CASE AND STRAINER
- TRANSMISSION CASE BREATHER
- LUBRlCATlNG
- ENGINEVALVES
- DRIVE BELT TENSION - CHECK
- DRIVE BELT,.,TENSIONER BEARING AND FAN HUB . INSPECTION
EVERY2000 HOURSSERVICE13 topics
- HYDRAUUCTANKAND FILTER
- HYDRAULICTANK BREATHER
- DRIVE AXLES
- AIRCONDTnON’iR’~I~~d:i~EbUif;f;E’d
- BRAKEDISC
- INTERNALPARTOFAIRDRYER
- COOLANT CHANGE AND FLUSHING THE SYSTEM
- COOLANT
- DCA4 UNlT MAINTENANCE GUIDE
- VIBRATION DAMPER - INSPECTION
- AIR COMPRESSOR . INSPECTION
- AIR COMPRESSOR DISCHARGE . INSPECl-lON
- AIR COMPRESSOR INTAKE . INSPECTION
WHEN REQUIRED16 topics
- CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT
- CHECKING
- CLEANING OR REPLACING OUTER ELEMENT
- REPLACING INNER ELEMENT
- CLEANING OUTER ELEMENT
- CHECK AND REFILL TRANSMISSION OIL
- CLEAN RADIATOR FlNS
- CHECK AND REFILL DRIVE AXLE OIL
- CLEAN DRIVE AXLE HOUSING BREATHER
- CLEAN AIR CONDITIONER CONDENSER-IF EQUIPPED
- CHECK AIR CONDlTlONER REFRIGERANT CHARGE-IF EQUIPPED
- CHECK AND REFILL WINDOW WASHING FLUID
- WATER SEDIMENTOR
- REPLACING BUCKET TEETH
- IF THE BUCKET IS EQUIPPED WITH BOLT-ON TOOTH
- IF THE BUCKET IS‘EOUIPPED WITH TIP TOOTH
ADJUSTMENT2 topics
- ADJUSTING PARKING BRAKE
- ADJUSTING LENGTH OF LEVER
TROUBLE SHOOl-lNG GUIDE1 topic
- ELECTRICAL SYSTEM
CHASSIS6 topics
- TRANSMISSION
- AXLE
- DISCBRAKE
- PARKlNG BRAKE
- STEERING
- HYDRAUUC SYSTEM
OPERATION2 topics
- GENERAL
- CHECKING JOBSITE CONDlTlONS
BEFORE STARTlNG OPERATION4 topics
- CHECKBEFORESTARTING
- PRECAUTIONS WHEN GlXRNG ON THE MACHINE
- PRECAUTIONS WHEN STARTlNG THE ENGINE
- CHECKS AFTER STARTING THE ENGINE
DURING OPERATION2 topics
- ATTENTiONTO SURROUNDINGS
- RESTRICTIONS CREATED BY JOBSITE
EXCAVATION2 topics
- PRECAUTIONS WHEN SCOOPING UP MATERIALS
- LOADING
OPERATING THE CAB HEATER4 topics
- EQUIPMENT ON,CONTROL PANEL
- FAN SPEED SWITCH
- TEMPERATURECONTROLLEVER
- AIR INTAtiE SEiECTOR LEVER
OPERATlNG THE AIR CONDITIONER-IF EQUIPPED7 topics
- EQUIPMENT ON CONTROL PANEL
- AIR CONDlTlONER SWITCH
- AIR INTAKE SELECTOR LEVER
- TEMPERATURE CONTROL LEVER
- PRECAUTIONS FOR USING AIR CONDITIONER
- HANDLING THE AIR CONDiTlONER IN SEASON
- HANDLING THE AIR CONDITIONER IN OFF-SEASONS
HANDLING OF BATTERY3 topics
- PRECAUTIONS FOR CH-ARtiid Bii-ibi+
- REMOVAL AND INSTALLATION OF BAlTERY
- STARTlNG ENGINE WITH A BOOSTER CABLE
TRANSPORTATION2 topics
- DURING STORAGE
- AFTER STORAGE
Inside this manual
Real pages from this operation & maintenance manual (172 pages). Open the sample pages (PDF, 329 KB)
- Controls and operation, page 37: BUCKET CONTROL LEVER
- Specifications, page 69: The standard specification machine is
- Maintenance, page 131: Oil viscosity recommendations are as foflows:
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the WA420-1LC 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, 172 pages
Quantity one is the manual described above.
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