Komatsu D31EX-21, D31PX-21, D37EX-21, D37PX-21, D39EX-21, D39PX-21 Bulldozer Operation & Maintenance Manual
259 pages · Publication EEAM024300
Added to your cart. View cart
What's inside
From the manual's own table of contents: 63 sections, 218 entries. See sample pages (PDF, 703 KB)
Vibration levels (D37EX, D37PX)1 topic
- GUIDE TO REDUCE VIBRATION LEVELS ON MACHINE
GENERAL VIEW2 topics
- GENERAL VIEW OF MACHINE
- GENERAL VIEW OF CONTROLS AND GAUGES
Show all 63 sections
EXPLANATION OF COMPONENTS42 topics
- FRONT PANEL
- CHECK MONITOR SYSTEM
- EMERGENCY CAUTION ITEMS
- CAUTION CAUTION ITEMS
- METER GROUP
- LAMPS
- METHOD OF USING MAINTENANCE MODE
- SWITCHES
- CONTROL LEVERS AND PEDALS
- FUSE
- ELECTRIC POWER TAKE-OUT ADAPTER
- DOOR - OPEN LOCK
- SASH GLASS INTERMEDIATE LOCK
- CAP, COVER WITH LOCK
- METHOD OF OPENING AND CLOSING CAP WITH LOCK
- METHOD OF OPENING AND CLOSING COVER WITH LOCK
- DOOR POCKET
- ASHTRAY
- LUNCHBOX HOLDER BELT
- CUP HOLDER
- TOOL BOX
- GREASE PUMP HOLDER
- CAR STEREO, HANDLING
- EXPLANATION OF COMPONENTS
- METOD OF OPERATION
- PRECAUTION WHEN USING
- AIR CONDITIONER, HANDLING
- EXPLANATION OF PARTS
- PREVENTION METHOD OF ENTRY OF DUST
- PRECAUTION WHEN USING AIR CONDITIONER
- INSPECTION DURING OFF-SEASON
- PROCEDURE FOR REPLACING RECEIVER
- CLEANING AIR FILTER
- ACCUMULATOR, HANDLING
- ACCUMULATOR
- CHECK BEFORE STARTING ENGINE, ADJUST
- CHECK
- CHECK BEFORE STARTING
- ADJUSTMENT
- OPERATION AND CHECK BEFORE STARTING ENGINE
- NORMAL STARTING
- STARTING IN COLD WEATHER
OPERATIONS AND CHECKS AFTER STARTING ENGINE2 topics
- BREAKING IN THE NEW MACHINE
- WARMING UP OPERATIONS
MACHINE OPERATION2 topics
- MOVING MACHINE
- STOPPING MACHINE
STEERING MACHINE10 topics
- NORMAL TURNING
- TURNING WHILE DESCENDING A SLOPE
- PAY ATTENTION TO GAUGES
- PERMISSIBLE WATER DEPTH
- METHOD OF USING BRAKES
- PRECAUTIONS WHEN TRAVELING UP OR DOWN HILLS
- PRECAUTIONS ON SLOPES
- IT IS PROHIBITED TO KEEP THE DOOR OPEN DURING OPERATIONS
- OBSTRUCT THE VIEW
- PRECAUTIONS FOR BLIND SPOTS CAUSED BY CAB STAY
WORK POSSIBLE USING BULLDOZER5 topics
- DOZING
- SMOOTHING
- CUTTING INTO HARD OR FROZEN GROUND OR DITCHING
- FELLING TREES, REMOVING STUMPS
- OPERATIONS
CHECK AFTER FINISHING WORK2 topics
- BEFORE STARTING ENGINE
- AFTER STARTING ENGINE
TIPS FOR LONGER UNDERCARRIAGE LIFE3 topics
- OPERATION METHOD
- INSPECTION AND ADJUSTMENT
- INSPECTION AND REPAIR
REMOVING CAB2 topics
- LOADING, UNLOADING WORK
- LIFTING MACHINE
COLD WEATHER OPERATION3 topics
- PRECAUTIONS FOR LOW TEMPERATURE
- AFTER COMPLETION OF WORK
- AFTER COLD WEATHER
STORAGE3 topics
- BEFORE STORAGE
- DURING STORAGE
- AFTER STORAGE
TROUBLESHOOTING14 topics
- AFTER RUNNING OUT OF FUEL
- MACHINE TOWING METHOD
- WHEN IT IS POSSIBLE TO START ENGINE
- WHEN ENGINE DOES NOT START
- IF BATTERY IS DISCHARGED
- REMOVE AND INSTALL BATTERY
- PRECAUTIONS FOR BATTERY CHARGING
- STARTING ENGINE WITH BOOSTER CABLE
- WHEN ENGINE DOES NOT STOP
- OTHER TROUBLE
- ELECTRICAL SYSTEM
- MONITOR PANEL
- CHASSIS
- ENGINE
OUTLINE OF SERVICE8 topics
- OUTLINE OF OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC
- FUEL
- COOLANT
- GREASE
- CARRYING OUT KOWA (KOMATSU OIL WEAR ANALYSIS)
- STORING OIL AND FUEL
- FILTERS
- RELATING TO ELECTRIC SYSTEM
MAINTENANCE SCHEDULE CHART8 topics
- WHEN REQUIRED
- CHECK BEFORE STARTING
- EVERY 50 HOURS SERVICE
- EVERY 250 HOURS SERVICE
- EVERY 500 HOURS SERVICE
- EVERY 1000 HOURS SERVICE
- EVERY 2000 HOURS SERVICE
- EVERY 4000 HOURS SERVICE
WHEN REQUIRED16 topics
- CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT
- CLEAN INSIDE OF COOLING SYSTEM
- CHECK TRACK SHOE TENSION, ADJUST
- CHECK AND TIGHTEN TRACK SHOE BOLTS
- CHECK ELECTRICAL INTAKE AIR HEATER
- REVERSE AND REPLACE END BITS AND CUTTING EDGES
- CHECK IDLER OIL LEVEL, ADD OIL
- ADJUST IDLER CLEARANCE
- ADJUST PLAY IN CENTER BALL
- GREASE DOOR HINGE
- CHECK DOOR LOCK STRIKER
- CHECK, ADJUST AIR CONDITIONER
- CHECK WINDOW WASHER FLUID LEVEL, ADD FLUID
- REPLACE WIPER BLADE
- PROCEDURE FOR BLEEDING AIR IN HYDRAULIC SYSTEM
- PROCEDURE FOR RELEASING INTERNAL PRESSURE OF HYDRAULIC SYSTEM
EVERY 50 HOURS SERVICE1 topic
- DRAIN WATER, SEDIMENT FROM FUEL TANK
EVERY 250 HOURS SERVICE5 topics
- LUBRICATING
- CHECK OIL LEVEL IN FINAL DRIVE CASE, ADD OIL
- CHECK LEVEL OF BATTERY ELECTROLYTE
- CHECK BRAKE PERFORMANCE
- CLEAN AIR CONDITIONER AIR FILTER (FRESH/RECIRC FILTER)
EVERY 500 HOURS SERVICE15 topics
- REPLACE FUEL FILTER CARTRIDGE
- CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE
- REPLACE CORROSION RESISTOR CARTRIDGE
- CLEAN, CHECK RADIATOR FINS AND OIL COOLER FINS
- CHANGE OIL IN FINAL DRIVE CASE
- CHECK FAN BELT TENSION, ADJUST
- CHECK ALL TIGHTENING PARTS OF TURBOCHARGER
- CHECK PLAY OF TURBOCHARGER ROTOR
- CHECK FOR LOOSE ROPS MOUNT BOLTS
- STRAINER
- CLEAN, CHECK TURBOCHARGER
- CHECK VIBRATION DAMPER
- CHECK ALTERNATOR, STARTING MOTOR
- CHECK ENGINE VALVE CLEARANCE, ADJUST
- CHECK WATER PUMP
SPECIFICATIONS1 topic
- PRECAUTIONS RELATED TO SAFETY
HANDLING HYDRAULIC RIPPER10 topics
- GENERAL VIEW
- EXPLANATION OF COMPONENTS
- OPERATION
- CHECK BEFORE STARTING ENGINE, ADJUST
- PRECAUTIONS WHEN OPERATING
- ADUSTING POSTURE OF WORK EQUIPMENT
- TROUBLESHOOTING
- OTHER TROUBLE
- MAINTENANCE
- EVERY 250 HOURS SERVICE
Inside this manual
Real pages from this operation & maintenance manual (259 pages). Open the sample pages (PDF, 703 KB)
- Controls and operation, page 58: GENERAL VIEW
- Maintenance, page 76: The lamp goes out or stops flashing.
- Specifications, page 241: SPECIFICATIONS
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
Added to your cart. View cart
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, 259 pages
Quantity one is the manual described above.
Fast free USA shipping
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
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).