Komatsu 12V140E-3 Series Engine Service Manual

Name: Komatsu 12V140E-3 Series Engine Service Manual
Brand: MidWestTech
SKU: SEN00291-05
Price: 69.73 USD
Availability: InStock

482 pages · Publication SEN00291-05

$69.73

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Models: 12V140E-3 Series
Manual type: Service Manual
Pages: 482
Publication: SEN00291-05
Condition: Brand new

Komatsu 12V140E-3 Series Engine Service Manual, publication SEN00291-05

What's inside

From the manual's own table of contents: 7 sections, 204 entries. See sample pages (PDF, 565 KB)

Search the contents

Index and foreword11 topics

Composition of shop manual
Safety notice
How to read the shop manual
Explanation of terms for maintenance standard
Handling of electric equipment and hydraulic component
Handling of connectors newly used for engines
How to read electric wire code
Precautions when carrying out operation
Method of disassembling and connecting push-pull type coupler
Standard tightening torque table
Conversion table

Specification5 topics

Outline
Specifications
General view
Weight table
Engine performance curves

Structure, function and maintenance standard47 topics

Air intake and exhaust system
Air intake and exhaust unit
Air cleaner
Turbocharger
Aftercooler
Muffler
Engine unit
Cylinder head
Cylinder block
Cylinder liner
Main moving parts
Crankshaft
Camshaft
Cam follower, push rod
Piston, piston ring, and piston pin
Connecting rod
Flywheel and flywheel housing
Vibration damper
Timing gear
Valve system
Valve and valve guide
Rocker arm and shaft
Crosshead and guide
Lubrication system
Lubrication system diagram
Oil pump
Oil cooler
Oil filter
Main relief valve
Oil cooler bypass valve and regulator valve
Fuel system
CRI system diagram
Outline of CRI system
Fuel piping
Fuel filter
Priming pump
Cooling system
Cooling system diagram
Water pump
Thermostat
Corrosion resistor
Cooling fan drive
Electrical equipment
Alternator
Starting motor
Starting aid
Engine controller

Standard value table3 topics

Standard service value table
Standard service value table for testing, adjusting, and troubleshooting
Running-in standard and performance test standard

Testing and adjusting20 topics

Testing and adjusting tools list
Testing air boost pressure
Testing exhaust temperature
Adjusting valve clearance
Testing compression pressure
Testing blow-by pressure
Measuring blow-by pressure
Testing oil pressure
Handling fuel system parts
Releasing residual pressure in fuel system
Testing fuel pressure
Reduced cylinder mode operation
No-injection cranking
Testing leakage-from pressure limiter and return rate from injector
Bleeding air from fuel circuit (for D475A-5)
Bleeding air from fuel circuit (for PC2000)
Testing fuel system for leakage
Adjusting speed sensor
Testing and adjusting alternator belt tension
Handling controller high-voltage circuit

Troubleshooting103 topics

General information on troubleshooting
Points to remember when troubleshooting
Error codes and failure codes list
Troubleshooting of mechanical system (S-mode)
Method of using troubleshooting charts
S-1 Starting performance is poor
S-2 Engine does not start
S-3 Engine does not pick up smoothly
S-4 Engine stops during operations
S-5 Engine does not rotate smoothly
S-6 Engine lacks output (or lacks power)
S-7 Exhaust smoke is black (incomplete combustion)
S-8 Oil consumption is excessive (or exhaust smoke is blue)
S-9 Oil becomes contaminated quickly
S-10 Fuel consumption is excessive
S-11 Oil is in coolant (or coolant spurts back or coolant level goes down)
S-12 Oil pressure drops
S-13 Oil level rises (Entry of coolant or fuel)
S-14 Coolant temperature becomes too high (overheating)
S-15 Abnormal noise is made
S-16 Vibration is excessive
Information in troubleshooting table
E-1 Code [111/CA111] ECM Critical Internal Failure (LH bank)
E-2 Code [111/CB111] ECM Critical Internal Failure (RH bank)
E-3 Code [115/CA115] Eng. Ne and G (Bkup) Speed Sensor Error (LH bank)
E-4 Code [115/CB115] Eng. Ne and G (Bkup) Speed Sensor Error (RH bank)
E-5 Code [122/CA122] Charge Air Press. Sensor High Error (LH bank only)
E-6 Code [123/CA123] Charge Air Press. Sensor Low Error (LH bank only)
E-7 Code [131/CA131] Throttle Sensor High Error (LH bank only)
E-8 Code [132/CA132] Throttle Sensor Low Error (LH bank only)
E-9 Code [135/CA135] Oil Press. Sensor High Error (LH bank only)
E-10 Code [141/CA141] Oil Press. Sensor Low Error (LH bank only)
E-11 Code [144/CA144] Coolant Temp. Sensor High Error (LH bank only)
E-12 Code [145/CA145] Coolant Temp. Sensor Low Error (LH bank only)
E-13 Code [153/CA153] Charge Air Temp. Sensor High Error (LH bank only)
E-14 Code [154/CA154] Charge Air Temp. Sensor Low Error (LH bank only)
E-15 Code [187/CA187] Sensor Sup. 2 Volt. Low Error (LH bank)
E-16 Code [187/CB187] Sensor Sup. 2 Volt. Low Error (RH bank)
E-17 Code [212/CA212] Eng. Oil Temp.Sensor High Error (LH bank only)
E-18 Code [213/CA213] Eng. Oil Temp.Sensor Low Error (LH bank only)
E-19 Code [221/CA221] Ambient Air Press. Sensor High Error (LH bank only)
E-20 Code [222/CA222] Ambient Air Press. Sensor Low Error (LH bank only)
E-21 Code [227/CA227] Sensor Sup. 2 Volt. High Error (LH bank)
E-22 Code [227/CB227] Sensor Sup. 2 Volt. High Error (RH bank)
E-23 Code [234/CA234] Eng. Overspeed (LH bank only)
E-24 Code [238/CA238] Ne Speed Sensor Sup. Volt. Error (LH bank)
E-25 Code [238/CB238] Ne Speed Sensor Sup. Volt. Error (RH bank)
E-26 Code [263/CA263] Fuel Temp. Sensor High Error (LH bank)
E-27 Code [263/CB263] Fuel Temp. Sensor High Error (RH bank)
E-28 Code [265/CA265] Fuel Temp. Sensor Low Error (LH bank)
E-29 Code [265/CB265] Fuel Temp. Sensor Low Error (RH bank)
E-38 Code [322/CA322] Injector #1 (L/B #1) System Open/Short Error (LH bank)
E-39 Code [323/CA323] Injector #5 (L/B #5) System Open/Short Error (LH bank)
E-40 Code [324/CA324] Injector #3 (L/B #3) System Open/Short Error (LH bank)
E-41 Code [325/CA325] Injector #6 (L/B #6) System Open/Short Error (LH bank)
E-42 Code [331/CA331] Injector #2 (L/B #2) System Open/Short Error (LH bank)
E-43 Code [332/CA332] Injector #4 (L/B #4) System Open/Short Error (LH bank)
E-44 Code [342/CA342] Caribration Code Incompatibility (LH bank)
E-45 Code [342/CB342] Caribration Code Incompatibility (RH bank)
E-46 Code [351/CA351] INJ. Drive Circuit Error (LH bank)
E-47 Code [351/CB351] INJ. Drive Circuit Error (RH bank)
E-48 Code [352/CA352] Sensor Sup. 1 Volt. Low Error (LH bank)
E-49 Code [352/CB352] Sensor Sup. 1 Volt. Low Error (RH bank)
E-50 Code [386/CA386] Sensor Sup. 1 Volt. High Error (LH bank)
E-51 Code [386/CB386] Sensor Sup. 1 Volt. High Error (RH bank)
E-52 Code [441/CA441] Battery Voltage Low Error (LH bank)
E-53 Code [441/CB441] Battery Voltage Low Error (RH bank)
E-54 Code [442/CA442] Battery Voltage High Error (LH bank)
E-55 Code [442/CB442] Battery Voltage High Error (RH bank)
E-56 Code [449/CA449] Rail Press. Very High Error (LH bank)
E-57 Code [449/CB449] Rail Press. Very High Error (RH bank)
E-58 Code [451/CA451] Rail Press. Sensor High Error (LH bank)
E-59 Code [451/CB451] Rail Press. Sensor High Error (RH bank)
E-60 Code [452/CA452] Rail Press. Sensor Low Error (LH bank)
E-61 Code [452/CB452] Rail Press. Sensor Low Error (RH bank)
E-62 Code [553/CA553] Rail Press. High Error 1 (LH bank)
E-63 Code [553/CB553] Rail Press. High Error 1 (RH bank)
E-64 Code [554/CA554] Rail Press. Sensor In Range Error (LH bank)
E-65 Code [554/CB554] Rail Press. Sensor In Range Error (RH bank)
E-68 Code [689/CA689] Eng. Ne Speed Sensor Error (LH bank)
E-69 Code [689/CB689] Eng. Ne Speed Sensor Error (RH bank)
E-70 Code [691/CA691] Intake Air Temp Sensor High Error (LH bank only)
E-71 Code [692/CA692] Intake Air Temp Sensor Low Error (LH bank only)
E-72 Code [731/CA731] Eng. G (Bkup) Speed Sensor Phase Error (LH bank)
E-73 Code [731/CB731] Eng. G (Bkup) Speed Sensor Phase Error (RH bank)
E-74 Code [757/CA757] All Continuous Data Lost Error (LH bank)
E-75 Code [757/CB757] All Continuous Data Lost Error (RH bank)
E-76 Code [778/CA778] Eng. G (Bkup) Speed Sensor Error (LH bank)
E-77 Code [778/CB778] Eng. G (Bkup) Speed Sensor Error (RH bank)
E-78 Code [781/CA781] Inter Multi-controller Communication Error (LH bank)
E-79 Code [781/CB781] Inter Multi-controller Communication Error (RH bank)
E-80 Code [1117/CA1117] Persistent Data Lost Error (LH bank)
E-81 Code [1117/CB1117] Persistent Data Lost Error (RH bank)
E-84 Code [1548/CB1548] Injector #7 (R/B #1) System Open/Short Error (RH bank)
E-85 Code [1549/CB1549] Injector #8 (R/B #2) System Open/Short Error (RH bank)
E-89 Code [1622/CB1622] Injector #9 (R/B #3) System Open/Short Error (RH bank)
E-90 Code [1633/CA1633] KOMNET Datalink Timeout Error (LH bank)
E-91 Code [2185/CA2185] Throttle Sens. Sup. Volt. High Error (LH bank only)
E-92 Code [2186/CA2186] Throttle Sens. Sup. Volt. Low Error (LH bank only)
E-93 Code [2249/CA2249] Rail Press. Very Low Error (LH bank)
E-94 Code [2249/CB2249] Rail Press. Very Low Error (RH bank)
E-96 Code [– –*2/–] Eng. Oil Press. Low Speed Derate (LH bank only)
E-97 Code [– –*3/–] Press. Low Torque Derate (LH bank only)

Disassembly and assembly8 topics

How to read this manual
Coating materials list
Special tools list
Disassembly and assembly, Part 1
General disassembly of engine
General assembly of engine
Removal and installation fuel supply pump unit
Removal and installation oil seal unit

Inside this manual

Real pages from this service manual (482 pages). Open the sample pages (PDF, 564 KB)

Sample pages from the Komatsu 12V140E-3 Series Engine Service Manual: Specifications, Troubleshooting, Diagram

Specifications, page 57: 01 Specification
Troubleshooting, page 253: Information in troubleshooting table
Diagram, page 316: E-37 Code [274/CB274] PCV2 Open Error (RH bank)

This is a service manual

Here's how it compares to the other manual types.

This manual

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, 482 pages

Quantity one is the manual described above.

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Binder not included

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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).