Komatsu WB140PS-2N, WB150PS-2N with S4D106-1 Engine Backhoe Loader Service Manual
597 pages · Publication CEBM012801
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- Models
- WB140PS-2N, WB150PS-2N with S4D106-1 Engine
- Serial coverage
- WB140PS-2N A40034 and up, WB150PS-2N A70010 and up
- Manual type
- Service Manual
- Pages
- 597
- Publication
- CEBM012801
- Condition
- Brand new
What's inside
From the manual's own table of contents: 2 sections, 66 entries. See sample pages (PDF, 817 KB)
FOREWORD28 topics
- 12CONTENTS
- GENERAL
- STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
- TESTING, ADJUSTING AND TROUBLESHOOTING
- DISASSEMBLY AND ASSEMBLY
- OTHER
- PPC JOYSTICK
- LEFT VALVE
- RIGHT VALVE
- SOLENOID VALVE
- DIFFERENTIAL LOCK - BACKHOE BOOM LOCK
- PPC SUPPLY VALVE - ST2
- PPC TELESCOPIC ARM
- PPC HAMMER
- PPC ARM AND HAMMER
- LOADER CYLINDERS
- BOOM ARM
- BUCKET
- MP BUCKET
- BACKHOE CYLINDERS
- BOOM
- TELESCOPIC ARM CYLINDER
- SWING
- OUTRIGGER
- BOOM LOCK CYLINDER
- FRONT WORK EQUIPMENT
- REAR WORK EQUIPMENT
- AIR CONDITIONING
TESTING AND ADJUSTING36 topics
- SETTING PRESSURE
- BACKHOE CIRCUIT RELIEF VALVES
- TESTING PRESSURE
- UNLOADING VALVE
- TESTING
- ADJUSTMENT
- LOAD SENSING (LS) VALVE
- FLOW VALVE
- PRIORITY VALVE
- CLEANING PRIORITY VALVE
- STEERING SYSTEM
- SETTING
- BRAKE SYSTEM
- CIRCUIT AND BRAKE PUMP TEST
- BRAKING GROUP LEAK TEST
- ENGINE SPEED UNDER LOAD
- PREPARING THE MACHINE
- TORQUE CONVERTER STALL
- TORQUE CONVERTER AND HYDRAULIC STALL
- POWER TRAIN GROUP
- CONVERTER OIL PRESSURE
- CLUTCH PRESSURE
- TRANSMISSION CLUTCHES
- PREPARATION OF THE MACHINE
- RETURN TO DIG DEVICE
- HYDRAULIC DRIFT
- LOADER
- BACKHOE
- AIR CONDITIONING UNIT
- TESTING THE WORKING TEMPERATURE
- CHECKING THE UNIT
- EMPTYING THE AC UNIT
- TROUBLESHOOTING GUIDE
- FRONT AXLE
- REAR AXLE
- TRANSMISSION
Inside this manual
Real pages from this service manual (597 pages). Open the sample pages (PDF, 816 KB)
- Troubleshooting, page 224: TROUBLESHOOTING
- Specifications, page 278: COUNTERWEIGHT
- Diagram, page 575: OTHERS
- Foldout diagram, page 573: OTHERS
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the WB140PS-2N 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 a service 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.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
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, 597 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
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).