Komatsu D85EX-15E0, D85PX-15E0 Bulldozer Service Manual
1,248 pages · Publication SEN00060-07
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- Models
- D85EX-15E0, D85PX-15E0
- Serial coverage
- Bulldozer
- Manual type
- Service Manual
- Pages
- 1,248
- Publication
- SEN00060-07
- Condition
- Brand new
What's inside
From the manual's own table of contents: 227 sections, 431 entries. See sample pages (PDF, 1215 KB)
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
Specification dimensions
Specifications
Weight table
Table of fuel, coolant and lubricants
Engine mount
Cooling system
Cooling fan pump
Cooling fan motor
Power train
HSS system
General view of power train unit
Power train hydraulic piping drawing
Transmission control
Show all 227 sections
Steering and brake control
Damper and universal joint
Torque converter and PTO
Transmission
Transmission clutch ECMV
Main relief valve and torque converter relief valve
Lubrication relief valve
Bevel gear shaft, HSS and brake
Brake valve
Final drive
Main frame
Suspension
Track frame
Idler cushion
Idler
Track roller
Carrier roller43 topics
- Sprocket
- Track shoe
- Work equipment hydraulic piping diagram
- PPC control piping diagram
- Work equipment control
- Hydraulic tank and filter
- Scavenging pump
- Power train and steering lubrication pump
- HSS pump
- HSS motor
- Control valve
- Self pressure reducing valve
- Oil cooler bypass valve
- PPC valve
- Electric lever (steering)
- Quick drop valve
- PPC lock valve
- Accumulator
- Cylinder stay
- Blade
- Cutting edge and end bit
- Ripper
- Hydraulic cylinder
- Piston valve
- Cab mount
- Air conditioner
- Monitor system
- Monitor panel
- Engine control
- Engine control system
- System components
- CRI engine control system
- Palm command control system
- KOMTRAX system
- Sensor
- Standard service value table for engine
- Standard service value table for chassis
- Tools for testing, adjusting, and troubleshooting
- Testing engine speed
- Testing intake air pressure (boost pressure)
- Testing exhaust temperature
- Testing exhaust gas color
- Adjusting valve clearance
Testing compression pressure
Testing blow-by pressure
Testing engine oil pressure
Testing EGR valve and bypass valve drive oil pressure
Handling of fuel system devices
Releasing residual pressure from fuel system
Testing fuel pressure
Handling of reduced cylinder mode operation
Handling of no injection cranking operation
Testing fuel return and leak amount
Bleeding air from fuel circuit
Testing fuel circuit for leakage
Testing and adjusting alternator belt tension
Testing and adjusting air conditioner compressor belt tension
Adjusting fuel control dial and decelerator pedal
Testing power train oil pressure
Adjusting transmission speed sensor
Simple method to test brake performance
Adjusting brake pedal
Adjusting parking brake lever
Emergency escape method when power train has trouble
Adjusting clearance of idler
Inspecting wear of sprocket
Testing and adjusting track shoe tension
Testing and adjusting work equipment and HSS oil pressure
Testing control circuit basic pressure
Testing PPC valve output pressure
Adjusting work equipment PPC valve play
Checking parts which caused hydraulic drift of blade and ripper
Testing internal leakage of work equipment cylinder
Bleeding air from work equipment cylinder
Releasing residual pressure in work equipment cylinder
Adjusting work equipment lock lever
Testing fan motor speed
Testing fan pump circuit pressure
Bleeding air from fan pump
Adjusting blade
Testing and adjusting operator cab
Special functions of monitor panel (EMMS)
Handling of voltage circuit of engine controller
Adjustment method when controller has been replaced
Preparation work for troubleshooting for electrical system
Inspection procedure of diode
Pm Clinic service
How to start operation of KOMTRAX terminal
Lamp display of KOMTRAX terminal
Points to remember when troubleshooting
How to proceed troubleshooting
Checks before troubleshooting
Classification and procedures of troubleshooting
How to distinguish wire code
Connection table for connector pin numbers
T- branch box and T- branch adapter table45 topics
- Failure code table
- Before troubleshooting by failure codes
- Contents of troubleshooting table
- Failure code [1500L0] Transmission clutch: Dual engagement
- Failure code [15SAL1] Forward clutch: Fill signal is ON when command current is OFF
- Failure code [15SALH] Forward clutch: Fill signal is OFF when command current is ON
- Failure code [15SBL1] Reverse clutch: Fill signal is ON when command current is OFF
- Failure code [15SBLH] Reverse clutch: Fill signal is OFF when command current is ON
- Failure code [15SEL1] 1st clutch: Fill signal is ON when command current is OFF
- Failure code [15SELH] 1st clutch: Fill signal is OFF when command current is ON
- Failure code [15SFL1] 2nd clutch: Fill signal is ON when command current is OFF
- Failure code [15SFLH] 2nd clutch: Fill signal is OFF when command current is ON
- Failure code [15SGL1] 3rd clutch: Fill signal is ON when command current is OFF
- Failure code [15SGLH] 3rd clutch: Fill signal is OFF when command current is ON
- Failure code [AA10NX] Air cleaner: Clogged
- Failure code [AB00MA] Abnormal battery charge: Malfunction
- Failure code [B@BAZG] Engine oil: Oil pressure too low
- Failure code [B@BCNS] Radiator coolant: Overheat
- Failure code [B@BCZK] Radiator coolant: Level too low
- Failure code [B@CENS] Power train oil: Overheat
- Failure code [B@HANS] Hydraulic oil: Overheat
- Failure code [CA111] Engine controller: Abnormality in controller
- Abnormal speed sensor signal
- Failure code [CA122] Charge pressure sensor too high: Excessively high voltage detected
- Failure code [CA123] Charge pressure sensor too low: Excessively low voltage detected
- Failure code [CA131] Decelerator pedal sensor too high: Excessively high voltage detected
- Failure code [CA132] Decelerator pedal sensor too low: Excessively low voltage detected
- Failure code [CA135] Oil pressure sensor too high: Excessively high voltage detected
- Failure code [CA141] Oil pressure sensor too low: Excessively low voltage detected
- Failure code [CA144] Coolant temperature sensor too high: Excessively high voltage detected
- Failure code [CA145] Coolant temperature sensor too low: Excessively low voltage detected
- Failure code [CA153] Charge temperature sensor too high: Excessively high voltage detected
- Failure code [CA154] Charge temperature sensor too low: Excessively low voltage detected
- Failure code [CA187] Sensor power source 2 too low: Low voltage detected
- Failure code [CA222] Atmospheric pressure sensor too low: Excessively low voltage detected
- Failure code [CA227] Sensor power source 2 too high: Excessively high voltage detected
- Failure code [CA234] Engine over speed: Excessively high speed
- Excessively low voltage detected
- Failure code [CA263] Fuel temperature sensor too high: Excessively high voltage detected
- Failure code [CA265] Fuel temperature sensor too low: Excessively low voltage detected
- Failure code [CA271] PCV1 short circuit: Short circuit
- Failure code [CA272] PCV1 disconnection: Disconnection
- Failure code [CA273] PCV2 short circuit: Short circuit
- Failure code [CA274] PCV2 disconnection: Disconnection
- Disconnection, short circuit
Failure code [CA342] Engine controller data matching error: Matching error
Failure code [CA351] Abnormal injector drive circuit: Abnormal circuit
Failure code [CA352] Sensor power source (1) too low: Excessively low voltage detected
Failure code [CA386] Sensor power source (1) too high: Excessively high voltage detected
Failure code [CA441] Power source voltage too low: Excessively low voltage detected
Failure code [CA442] Power source voltage too high: Excessively high voltage detected1 topic
- Excessively high pressure trouble occurred
Failure code [CA452] Common rail pressure sensor too low: Excessively low voltage detected
Failure code [CA553] Common rail pressure too high (1): Excessively high pressure detected
Failure code [CA554] In-range error in common rail pressure sensor: In-range error1 topic
- Loss of pressure feed detected
Failure code [CA689] Abnormal engine Ne speed sensor: Abnormal signal
Failure code [CA731] Abnormal engine Bkup speed sensor phase: Abnormal phase
Failure code [CA757] Loss of all engine controller data: Loss of all data
Failure code [CA778] Abnormal engine Bkup speed sensor: Abnormal Bkup signal
Failure code [CA1228] Abnormal EGR valve servo (1): EGR out of control
Failure code [CA1625] Abnormal EGR valve servo (2): EGR out of control
Failure code [CA1633] Abnormal KOMNET: Abnormal communication2 topics
- Excessively high voltage detected
- Excessively low voltage detected
Failure code [CA2271] EGR valve lift sensor too high: Excessively high voltage detected
Failure code [CA2272] EGR valve lift sensor too low: Excessively low voltage detected
Failure code [CA2351] EGR valve solenoid drive short circuit: Short circuit
Failure code [CA2352] EGR valve solenoid drive disconnection: Disconnection
Failure code [CA2555] Intake air heater relay disconnection: Disconnection
Failure code [CA2556] Intake air heater relay short circuit: Short circuit
Failure code [D110KA] Battery relay: Disconnection
Failure code [D110KB] Battery relay: Short circuit
Failure code [D130KA] Neutral safety relay: Disconnection
Failure code [D130KB] Neutral safety relay: Short circuit
Failure code [D161KA] Back-up alarm relay: Disconnection
Failure code [D161KB] Back-up alarm relay: Short circuit
Failure code [D190KA] Engine controller ACC signal cutout relay: Disconnection
Failure code [D190KB] Engine controller ACC signal cutout relay: Short circuit
Failure code [D811KR] KOMTRAX controller CAN communication: Defective communication
Failure code [DAFRKR] Monitor panel CAN communication: Defective communication49 topics
- Abnormal controller memory information
- Power source voltage drop and input
- V power source (1): Power source voltage drop and input
- V power source: Power source voltage drop and input
- V power source (2): Power source voltage drop and input
- Inconsistency in model select signal
- CAN communication: Defective communication
- Failure code [DB2RKR] Engine controller CAN communication: Defective communication
- Abnormal controller memory information
- Power source voltage drop and input
- V power source (1): Power source voltage drop and input
- V power source: Power source voltage drop and input
- V power source (2): Power source voltage drop and input
- Inconsistent model selection signal
- CAN communication: Defective communication
- Failure code [DD12KA] Shift up switch: Disconnection
- Failure code [DD12KB] Shift up switch: Short circuit
- Failure code [DD13KA] Shift down switch: Disconnection
- Failure code [DD13KB] Shift down switch: Short circuit
- Failure codes [DD14KA] and [DDQ2KA] Parking lock switch: Disconnection
- Failure codes [DD14KB] and [DDQ2KB] Parking lock switch: Short circuit
- Failure codes [DDQ2KA] and [DD14KA] Parking lock switch: Disconnection
- Failure codes [DDQ2KB] and [DD14KB] Parking lock switch: Short circuit
- Failure code [DGS1KX] Hydraulic oil temperature sensor: Input signal is out of normal range
- Failure code [DGT1KA] Power train oil temperature sensor: Disconnection
- Failure code [DGT1KX] Power train oil temperature sensor: Input signal is out of normal range
- Failure code [DH22KA] HSS and work equipment pump oil pressure sensor: Disconnection
- Failure code [DH22KB] HSS and work equipment pump oil pressure sensor: Short circuit
- Failure code [DK10KA] Fuel dial: Disconnection
- Failure code [DK10KB] Fuel dial: Short circuit
- Failure code [DK30KA] Steering potentiometer (1): Disconnection
- Failure code [DK30KB] Steering potentiometer (1): Short circuit
- Failure code [DK30KX] Steering potentiometer: Input signal is out of normal range
- Failure code [DK30KZ] Steering potentiometer: Disconnection or short circuit (Double failure)
- Failure code [DK30L8] Steering potentiometer: Inconsistent analog signal
- Failure code [DK31KA] Steering potentiometer (2): Disconnection
- Failure code [DK31KB] Steering potentiometer (2): Short circuit
- Failure code [DK40KA] Brake potentiometer: Disconnection
- Failure code [DK40KB] Brake potentiometer: Short circuit
- Failure code [DK55KX] Forward-reverse potentiometer: Input signal is out of normal range
- short circuit (Double failure)
- Failure code [DK55L8] Forward-reverse potentiometer: Inconsistent analog signal
- Failure code [DK56KA] Forward-reverse potentiometer (1): Disconnection
- Failure code [DK56KB] Forward-reverse potentiometer (1): Short circuit
- Failure code [DK57KA] Forward-reverse potentiometer (2): Disconnection
- Failure code [DK57KB] Forward-reverse potentiometer (2): Short circuit
- Failure code [DKH1KA] [DKH1KX] Pitch angle sensor: Short circuit
- Failure code [DKH1KB] [DKH1KX] Pitch angle sensor: Disconnection
- Input signal out of range
Failure code [DLT3KA] Transmission output speed sensor: Disconnection
Failure code [DLT3KB] Transmission output speed sensor: Short circuit
Failure code [DV00KB] Alarm buzzer: Short circuit
Failure code [DW7BKA] Fan reverse solenoid: Disconnection
Failure code [DW7BKB] Fan reverse solenoid: Short circuit
Failure code [DW7BKY] Fan reverse solenoid: Hot short circuit
Failure code [DWN1KA] HSS EPC solenoid right: Disconnection
Failure code [DWN1KB] HSS EPC solenoid right: Short circuit
Failure code [DWN1KY] HSS EPC solenoid right: Hot short circuit
Failure code [DWN2KA] HSS EPC solenoid left: Disconnection
Failure code [DWN2KB] HSS EPC solenoid left: Short circuit
Failure code [DWN2KY] HSS EPC solenoid left: Hot short circuit
Failure code [DWN5KA] Fan pump EPC solenoid: Disconnection
Failure code [DWN5KB] Fan pump EPC solenoid: Short circuit
Failure code [DWN5KY] Fan pump EPC solenoid: Hot short circuit
Failure code [DXA0KA] HSS and work equipment pump TVC solenoid: Disconnection
Failure code [DXA0KB] HSS and work equipment pump TVC solenoid: Short circuit
Failure code [DXA0KY] HSS and work equipment pump TVC solenoid: Hot short circuit
Failure code [DXH4KA] 1st clutch ECMV: Disconnection
Failure code [DXH4KB] 1st clutch ECMV: Short circuit
Failure code [DXH4KY] 1st clutch ECMV: Hot short circuit
Failure code [DXH5KA] 2nd clutch ECMV: Disconnection
Failure code [DXH5KB] 2nd clutch ECMV: Short circuit
Failure code [DXH5KY] 2nd clutch ECMV: Hot short circuit
Failure code [DXH6KA] 3rd clutch ECMV: Disconnection
Failure code [DXH6KB] 3rd clutch ECMV: Short circuit
Failure code [DXH6KY] 3rd clutch ECMV: Hot short circuit
Failure code [DXH7KA] Reverse clutch ECMV: Disconnection
Failure code [DXH7KB] Reverse clutch ECMV: Short circuit
Failure code [DXH7KY] Reverse clutch ECMV: Hot short circuit
Failure code [DXH8KA] Forward clutch ECMV: Disconnection
Failure code [DXH8KB] Forward clutch ECMV: Short circuit
Failure code [DXH8KY] Forward clutch ECMV: Hot short circuit
Before troubleshooting of electrical system
Contents of troubleshooting table
Engine does not start
The preheater does not operate
The monitor panel does not light up at all when the starting switch is turned ON1 topic
- does not go out
When the starting switch is turned ON, the radiator coolant level caution lamp flashes
While the engine is running, the battery charge level caution lamp flashes
While the engine is running, the emergency warning item flashes
While the preheater is operating, the preheating pilot lamp does not light up
The coolant temperature gauge does not indicate correctly
Power train oil temperature gauge does not indicate correctly
Hydraulic oil temperature gauge does not indicate properly
Fuel gauge does not indicate properly
Gear speed and engine speed are not indicated properly
The preset mode and service meter do not indicate properly
The warning lamp does not flash or does not go out
The alarm buzzer does not sound or does not stop
Auto shift down does not operate or does not release
Buzzer cancel switch does not work
The information switch does not work49 topics
- The manual mode does not operate or does not release
- cannot be set out of the service mode
- The back-up alarm does not sound
- The head lamp and rear lamp do not light up
- The horn does not sound or does not stop
- Malfunction of wipers
- Washer does not spray water
- The air conditioner does not operate
- KOMTRAX system does not operate normally
- Fan does not reverse
- Gear cannot be shifted
- There is no travel power (no drawbar pull)
- Machine does not move (at 2nd or 3rd speed)
- Machine does not move at any gear speed
- Machine travels only in one direction, forward or reverse
- When gear is shifted or travel direction is changed, large time lag is made
- Machine cannot be steered (Machine does not turn leftward or rightward)
- Steering speed or power is low
- Brake does not work
- Overheat of power train oil
- All work equipment speeds are slow
- All work equipments do not move
- Blade lift speed is slow or lacks power
- Blade tilt speed is slow or lacks power
- Ripper lift speed is slow or lacks power
- Excessive hydraulic drift of blade lift
- Excessive hydraulic drift of blade tilt
- Excessive hydraulic drift of ripper lift
- Method of using troubleshooting charts
- Starting performance is poor
- Engine does not start
- Engine does not pick up smoothly
- Engine stops during operations
- Engine does not rotate smoothly
- Engine lacks output (or lacks power)
- Exhaust smoke is black (incomplete combustion)
- Oil consumption is excessive (or exhaust smoke is blue)
- Oil becomes contaminated quickly
- Fuel consumption is excessive
- Oil is in coolant (or coolant spurts back, or coolant level goes down)
- Oil pressure drops
- Oil level rises (water, fuel in oil)
- Coolant temperature becomes too high (overheating)
- Abnormal noise is made
- Vibration is excessive
- How to read this manual
- Coating materials list
- Special tools list
- Sketch of special tool
Removal and installation of fuel supply pump assembly
Removal and installation of cylinder head assembly
Removal and installation of fuel injector assembly
Removal and installation of engine front seal
Removal and installation of engine rear seal
Removal and installation of engine oil pan
Removal and installation of engine assembly
Removal and installation of radiator assembly
Removal and installation of fan drive assembly
Removal and installation of fan motor assembly
Removal and installation of fuel tank assembly
Removal and installation of damper assembly
Disassembly and assembly of damper assembly
Removal and installation of engine hood assembly
Removal and installation of power train unit assembly
Disconnection and connection of power train unit assembly
Disassembly and assembly of PTO assembly
Disassembly and assembly of torque converter assembly
Disassembly and assembly of TORQFLOW transmission assembly
Disassembly and assembly of HSS assembly
Removal and installation of final drive assembly
Disassembly and assembly of final drive assembly
Removal and installation of track frame assembly
Removal and installation of idler assembly
Disassembly and assembly of idler assembly
Removal and installation of recoil spring assembly
Disassembly and assembly of recoil spring assembly
Removal and installation of track roller assembly
Disassembly and assembly of track roller assembly
Removal and installation of carrier roller assembly
Disassembly and assembly of carrier roller assembly
Expansion and installation of track shoe assembly
Whole disassembly and whole assembly of track shoe assembly
Field disassembly and assembly of one link
Disassembly and assembly of master link
Removal and installation of pivot shaft assembly
Removal and installation of equalizer bar assembly
Disassembly and assembly of equalizer bar assembly
Removal and installation of work equipment control valve assembly
Disassembly and assembly of work equipment control valve assembly
Removal and installation of HSS and work equipment pump assembly
Removal and installation of power train and lubricating oil pump assembly
Removal and installation of fan pump assembly
Removal and installation of scavenging pump assembly
Removal and installation of HSS motor assembly
Disassembly and assembly of hydraulic cylinder assembly
Removal and installation of blade assembly
Disassembly and assembly of ripper assembly13 topics
- Removal and installation of ROPS guard assembly
- Removal and installation of operator’s cab assembly
- Removal and installation of operator’s cab glass (Stuck glass)
- Removal and installation of floor frame assembly
- Removal and installation of engine controller
- Removal and installation of steering and transmission controller
- Removal and installation of KOMTRAX terminal
- Power train hydraulic circuit diagram
- Hydraulic circuit diagram
- Electrical circuit diagram
- Cab electrical circuit diagram
- Air conditioner electrical circuit diagram
- Connector list and stereogram
Inside this manual
Real pages from this service manual (1,248 pages). Open the sample pages (PDF, 1214 KB)
- Specifications, page 90: 10 Structure, function and maintenance standard
- Troubleshooting, page 508: Classification and procedures of troubleshooting
- Diagram, page 812: Failure code [DWN5KB] Fan pump EPC solenoid: Short circuit
- Foldout diagram, page 1,246: D85EX, PX-15E0
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the D85EX-15E0, D85PX-15E0 are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
This manual: Service Manual SEN00060-07$129.85
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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, 1,248 pages
Quantity one is the manual described above.
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Other editions and similar models
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