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Komatsu Galeo D155AX-6 Bulldozer Service Manual

1,147 pages · Publication SEN00596-02

$119.55
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Models
Galeo D155AX-6
Serial coverage
80001 and up
Manual type
Service Manual
Pages
1,147
Publication
SEN00596-02
Condition
Brand new
Komatsu Galeo D155AX-6 Bulldozer Service Manual, publication SEN00596-02

What's inside

From the manual's own table of contents: 258 sections, 513 entries. See sample pages (PDF, 1458 KB)

Organization list of the shop manual
Foreword and general information
Safety notice
How to read the shop manual
Explanation of terms for maintenance standard
Handling electric equipment and hydraulic component
How to read electric wire code
Method of disassembling and connecting push-pull type coupler
Standard tightening torque table
Conversion table
Specification and technical data
Specification dimension drawings
Specifications
Weight table
Table of fuel, coolant and lubricants
Engine and cooling system
Radiator, oil cooler
Engine mount
Cooling fan pump
Cooling fan motor
Power train system, Part 1
Power train skeleton
Overall drawing of power train unit
Power train hydraulic piping drawing
Show all 258 sections
Damper, universal joint
Torque converter, PTO
Torque converter control valve
Lockup clutch ECMV, stator clutch ECMV
Transmission control
Transmission
Transmission ECMV
Main relief valve and torque converter relief valve
Lubrication relief valve
Scavenging pump
Power train and steering lubrication pump
Power train system, Part 2
HSS system
HSS motor
Hydraulic, HSS pump
Hydraulic oil cooler bypass valve
Steering, brake control47 topics
  • Steering unit
  • Brake control valve
  • Brake ECMV
  • Parking brake solenoid valve
  • Sudden stop prevention valve
  • Final drive
  • Sprocket
  • Undercarriage and frame
  • Track frame
  • Recoil spring
  • Idler
  • Track roller
  • Carrier roller
  • Track shoe
  • Main frame
  • Suspension
  • Hydraulic system
  • Work equipment hydraulic piping diagram
  • Work equipment control piping diagram
  • Work equipment control
  • Hydraulic tank and filter
  • Accumulator
  • PCCS lever
  • Work equipment lock valve
  • Control valve
  • Work equipment cylinder
  • Piston valve
  • Quick drop valve
  • Self pressure reducing valve
  • Work equipment
  • Cylinder stay
  • Blade
  • Cutting edge, end bit
  • Ripper
  • Cab and its attachments
  • Cab mount + ROPS pin
  • ROPS cab
  • Air conditioner
  • Electrical system
  • Engine control
  • Engine control system
  • Deceleration potentiometer
  • Monitor system
  • Sensors
  • Palm command control system
  • Standard value table for engine
  • Standard value table for machine
Testing and adjusting, Part 1
Tools for testing, adjusting, and troubleshooting
Measuring engine speed
Measuring intake air pressure (boost pressure)
Measuring exhaust temperature
Measuring exhaust gas color
Adjusting valve clearance
Measuring compression pressure
Measuring blow-by pressure
Measuring engine oil pressure
Handling fuel system parts
Releasing residual pressure from fuel system
Measuring fuel pressure
Measuring fuel return rate and fuel leakage
Bleeding air from fuel circuit
Measuring fuel circuit for leakage
Testing and adjusting alternator belt tension
Testing and adjusting air conditioner compressor belt tension
Measuring fan speed
Measuring fan circuit oil pressure
Bleeding air from fan pump
Adjusting fuel control dial and decelerator pedal
Testing and adjusting, Part 2
Measuring power train oil pressure
Adjusting transmission output shaft speed sensor
Simple test procedure for brake performance
Adjusting brake pedal
Adjusting parking brake lever
Emergency escape method when power train has trouble
Adjusting idler clearance
Testing and adjusting track shoe tension
Measuring and adjusting work equipment and HSS oil pressure
Measuring control circuit basic pressure
Measuring work equipment lock solenoid valve output pressure
Emergency operation method when work equipment has trouble
Measuring ripper pin puller solenoid valve output pressure
Testing parts which cause hydraulic drift of blade and ripper
Measuring internal leakage of work equipment cylinder
Releasing residual pressure from work equipment cylinder
Bleeding air from work equipment cylinder
Adjusting work equipment lock lever
Adjusting blade
Adjusting operator's cab
Testing and adjusting, Part 3
Special functions of machine monitor (EMMS)
Testing and adjusting, Part 4
Handling of power supply circuit of engine controller
Preparation work for troubleshooting of electrical system
Pm Clinic53 topics
  • General information on troubleshooting
  • Points to remember when troubleshooting
  • Sequence of events in troubleshooting
  • Check before troubleshooting
  • Classification and procedures for troubleshooting
  • Connector pin Nos. and connection table
  • T-boxes and T-adapters table
  • Troubleshooting by failure and error codes, Part 1
  • Failure codes table
  • Before carrying out troubleshooting when failure code is displayed
  • Information in troubleshooting table
  • Failure code [1500L0] Transmission clutch: Abnormal
  • Failure code [15SAL1] Forward clutch: Fill high
  • Failure code [15SALH] Forward clutch: Fill low
  • Failure code [15SBL1] Reverse clutch: Fill high
  • Failure code [15SBLH] Reverse clutch: Fill low
  • Failure code [15SEL1] Speed 1st clutch: Fill high
  • Failure code [15SELH] Speed 1st clutch: Fill low
  • Failure code [15SFL1] Speed 2nd clutch: Fill high
  • Failure code [15SFLH] Speed 2nd clutch: Fill low
  • Failure code [15SGL1] Speed 3rd clutch: Fill high
  • Failure code [15SGLH] Speed 3rd clutch: Fill low
  • Failure code [15SJL1] L/U: Fill high
  • Failure code [15SJLH] L/U: Fill low
  • Failure code [2301L1] Right brake: Fill high
  • Failure code [2301LH] Right brake: Fill low
  • Failure code [2302L1] Left brake: Fill high
  • Failure code [2302LH] Left brake: Fill low
  • Failure code [7RFAKA] ECM HOLD RELAY: Disconnection
  • Failure code [AA10NX] Air Cleaner Clogging
  • Failure code [AB00MA] Battery Charge Abnormal
  • Failure code [B@BAZG] Eng Oil PressLow
  • Failure code [B@BCNS] Eng Water Overheat
  • Failure code [B@BCZK] Eng Water Level Low
  • Failure code [B@CENS] T/C Oil Overheat
  • Failure code [B@HANS] Hyd Oil Overheat
  • Troubleshooting by failure and error codes, Part 2
  • Failure code [CA111] EMC Critical Internal Failure
  • Failure code [CA115] Eng Ne and Bkup Speed Sens Error
  • Failure code [CA122] Chg Air Press Sensor High Error
  • Failure code [CA123] Chg Air Press Sensor Low Error
  • Failure code [CA131] Throttle Sensor High Error
  • Failure code [CA132] Throttle Sensor Low Error
  • Failure code [CA135] Eng Oil Press Sensor High Error
  • Failure code [CA141] Eng Oil Press Sensor Low Error
  • Failure code [CA144] Coolant Temp Sens High Error
  • Failure code [CA145] Coolant Temp Sens Low Error
  • Failure code [CA153] Chg Air Temp Sensor High Error
  • Failure code [CA154] Chg Air Temp Sensor Low Error
  • Failure code [CA187] Sens Supply 2 Volt Low Error
  • Failure code [CA221] Ambient Press Sens High Error
  • Failure code [CA222] Ambient Press Sens Low Error
  • Failure code [CA227] Sens Supply 2 Volt High Error
Failure code [CA234] Eng Overspeed
Failure code [CA238] Ne Speed Sens Supply Volt Error
Failure code [CA263] Fuel Temp Sensor High Error
Failure code [CA265] Fuel Temp Sensor Low Error
Failure code [CA271] PCV1 Short Error
Failure code [CA272] PCV1 Open Error
Failure code [CA273] PCV2 Short Error
Failure code [CA274] PCV2 Open Error
Failure code [CA322] Inj #1 (L#1) Open/Short Error
Failure code [CA323] Inj #5 (L#5) Open/Short Error
Failure code [CA324] Inj #3 (L#3) Open/Short Error
Failure code [CA325] Inj #6 (L#6) Open/Short Error
Failure code [CA331] Inj #2 (L#2) Open/Short Error
Failure code [CA332] Inj #4 (L#4) Open/Short Error
Failure code [CA342] Calibration Code Incompatibility
Failure code [CA351] Injectors Drive Circuit Error
Failure code [CA352] Sens Supply 1 Volt Low Error
Failure code [CA386] Sens Supply 1 Volt High Error
Failure code [CA441] Battery Voltage Low Error
Failure code [CA442] Battery Voltage High Error
Failure code [CA449] Rail Press Very High Error
Failure code [CA451] Rail Press Sensor High Error
Failure code [CA452] Rail Press Sensor Low Error
Failure code [CA553] Rail Press High Error
Failure code [CA554] Rail Press Sensor In Range Error
Failure code [CA559] Rail Press Low Error
Failure code [CA689] Eng Ne Speed Sensor Error
Troubleshooting by failure and error codes, Part 3
Failure code [CA731] Eng Bkup Speed Sens Phase Error
Failure code [CA757] All Continuous Data Lost Error
Failure code [CA778] Eng Bkup Speed Sensor Error
Failure code [CA1228] EGR Valve Servo Error 1
Failure code [CA1625] EGR Valve Servo Error 2
Failure code [CA1626] BP Valve Sol Current High Error
Failure code [CA1627] BP Valve Sol Current Low Error
Failure code [CA1628] Bypass Valve Servo Error 1
Failure code [CA1619] Bypass Valve Servo Error 2
Failure code [CA1631] BP Valve Pos Sens High Error
Failure code [CA1632] BP Valve Pos Sens Low Error
Failure code [CA1633] KOMNET Datalink Timeout Error
Failure code [CA1642] EGR Inlet Press Sens Low Error
Failure code [CA1653] EGR Inlet Press Sens High Error
Failure code [CA2185] Throt Sens Sup Volt High Error
Failure code [CA2186] Throt Sens Sup Volt Low Error
Failure code [CA2249] Rail Press Very Low Error
Failure code [CA2271] EGR Valve Pos Sens High Error
Failure code [CA2272] EGR Valve Pos Sens Low Error
Failure code [CA2351] EGR Valve Sol Current High Error
Failure code [CA2352] EGR Valve Sol Current Low Error
Failure code [CA2555] Grid Htr Relay Volt Low Error
Failure code [CA2556] Grid Htr Relay Volt High Error
Failure code [D110KA] Battery relay: Disconnection
Failure code [D110KB] Battery Relay: Drive Short Circuit
Failure code [D130KA] Neutral relay: Disconnection
Failure code [D130KB] Neutral relay: Short circuit
Failure code [D161KA] Back-up alarm relay: Disconnection
Failure code [D161KB] Back-up alarm relay: Short circuit55 topics
  • Failure code [D190KA] ACC signal relay: Disconnection
  • Failure code [D190KB] ACC signal relay: Short circuit
  • Failure code [D5ZKKX] Throttle Dial: Out of normal range
  • Failure code [DAFRKR] CAN Disconnection (Monitor)
  • Failure code [DB2RKR] CAN Disconnection (Engine controller)
  • Failure code [DB90KK] WE controller: Source voltage reduction
  • Failure code [DB90KR] PT controller: Can communication lost
  • Troubleshooting by failure and error codes, Part 4
  • Failure code [DB90KT] WE controller: Abnormality in controller
  • Failure code [DB95KK] WE controller: Source voltage reduction
  • Failure code [DB97KK] WE controller: Source voltage reduction
  • Failure code [DB99KQ] WE controller: Type select signal
  • Failure code [DB9RKR] WE controller: Can communication lost
  • Failure code [DBE0KK] PT controller: Source voltage reduction
  • Failure code [DBE0KT] PT controller: Abnormality in controller
  • Failure code [DBE6KK] PT controller: Source voltage reduction
  • Failure code [DBE7KK] PT controller: Source voltage reduction
  • Failure code [DBE9KQ] PT controller: Type select signal
  • Failure code [DD12KA] Shift up Sw: Disconnection
  • Failure code [DD12KB] Shift up Sw: Short circuit
  • Failure code [DD13KA] Shift down Sw: Disconnection
  • Failure code [DD13KB] Shift down Sw: Short circuit
  • Failure code [DD14KA] Parking lever Sw: Disconnection
  • Failure code [DD14KB] Parking lever Sw: Short circuit
  • Failure code [DDDDKA] Back up brake Sw: Disconnection
  • Failure code [DDDDKB] Back up brake Sw: Short circuit
  • Failure code [DDDDKX] Back up brake Sw: Signal mismatch
  • Failure code [DDN7KA] WEQ Knob Sw (down): Disconnection
  • Failure code [DDN7KB] WEQ Knob Sw (down): Short circuit
  • Failure code [DDN9KA] WEQ Knob Sw (up): Disconnection
  • Failure code [DDN9KB] WEQ Knob Sw (up): Short circuit
  • Failure code [DDNLKA] Weq lock Sw: Disconnection
  • Failure code [DDNLKB] Weq lock Sw: Short circuit
  • Failure code [DDTSL1] S/C: Fill high
  • Failure code [DDTSLH] S/C: Fill low
  • Troubleshooting by failure and error codes, Part 5
  • Failure code [DFA4KX] BL lever 1: Out of normal range
  • Failure code [DFA4KZ] BL lever: Disconnection or short circuit
  • Failure code [DFA4L8] BL lever: Signal mismatch
  • Failure code [DFA5KA] BL lever 1: Disconnection
  • Failure code [DFA5KB] BL lever 1: Short circuit
  • Failure code [DFA6KA] BL lever 2: Disconnection
  • Failure code [DFA6KB] BL lever 2: Short circuit
  • Failure code [DFA7KX] BT lever 1: Out of normal range
  • Failure code [DFA7KZ] BT lever: Disconnection or short circuit
  • Failure code [DFA7L8] BT lever: Signal mismatch
  • Failure code [DFA8KA] BT lever 1: Disconnection
  • Failure code [DFA8KB] BT lever 1: Short circuit
  • Failure code [DFA9KA] BT lever 2: Disconnection
  • Failure code [DFA9KB] BT lever 2: Short circuit
  • Failure code [DFAAKX] RL lever 1: Out of normal range
  • Failure code [DFAAKZ] RL lever: Disconnection or short circuit
  • Failure code [DFAAL8] RL lever: Signal mismatch
  • Failure code [DFABKA] RL lever 1: Disconnection
  • Failure code [DFABKB] RL lever 1: Short circuit
Failure code [DFACKA] RL lever 2: Disconnection
Failure code [DFACKB] RL lever 2: Short circuit
Failure code [DFADKX] RL lever 1: Out of normal range
Failure code [DFADKZ] RL lever: Disconnection or short circuit
Failure code [DFADL8] RL lever: Signal mismatch
Failure code [DFAEKA] RL lever 1: Disconnection
Failure code [DFAEKB] RL lever 1: Short circuit
Failure code [DFAFKA] RL lever 2: Disconnection
Failure code [DFAFKB] RL lever 2: Short circuit
Failure code [DGT1KA] T/C oil temp sensor: Abnormal
Failure code [DGT1KX] T/C oil temp sensor: Abnormal
Failure code [DH21KA] Weq pressure sensor: Disconnection
Failure code [DH21KB] Weq pressure sensor: Short circuit
Failure code [DHT5KA] T/C in-pressure sensor: Disconnection
Failure code [DHT5KB] T/C in-pressure sensor: Short circuit
Failure code [DHT7KA] T/C out-pressure sensor: Disconnection
Failure code [DHT7KB] T/C out-pressure sensor: Short circuit
Failure code [DK10KX] Fuel control Dial: Out of normal range
Troubleshooting by failure and error codes, Part 6
Failure code [DK30KA] ST lever 1: Disconnection
Failure code [DK30KB] ST lever 1: Short circuit
Failure code [DK30KX] ST lever 1: Out of normal range
Failure code [DK30KZ] RL lever: Disconnection or short circuit
Failure code [DK30L8] ST lever: Signal mismatch
Failure code [DK31KA] ST lever 2: Disconnection
Failure code [DK31KB] ST lever 2: Short circuit
Failure code [DK40KA] Brake potentiometer: Disconnection
Failure code [DK40KB] Brake potentiometer: Short circuit
Failure code [DK55KX] FR lever: Out of normal range
Failure code [DK55KZ] FR lever: Disconnection or short circuit
Failure code [DK55L8] FR lever: Signal mismatch
Failure code [DK56KA] FR lever 1: Disconnection
Failure code [DK56KB] FR lever 1: Short circuit
Failure code [DK57KA] FR lever 2: Disconnection
Failure code [DK57KB] FR lever 2: Short circuit
Failure code [DKH1KA] Pitch angle sensor: Disconnection
Failure code [DKH1KB] Pitch angle sensor: Short circuit
Failure code [DLT3KA] T/M out-speed sensor: Disconnection
Failure code [DLT3KB] T/M out-speed sensor: Abnormal
Failure code [DW7BKA] Fan rev EPC: Disconnection
Failure code [DW7BKB] Fan rev EPC: Short circuit
Failure code [DWN1KA] Hss EPC1: Disconnection
Failure code [DWN1KB] Hss EPC1: Short circuit
Failure code [DWN1KY] Hss EPC1: Short circuit
Failure code [DWN2KA] Hss EPC2: Disconnection
Failure code [DWN2KB] Hss EPC2: Short circuit
Failure code [DWN2KY] Hss EPC2: Short circuit
Failure code [DWN3KA] Ssp solenoid: Disconnection
Failure code [DWN3KB] Ssp solenoid: Short circuit
Failure code [DWN3KY] Ssp solenoid: Short circuit
Failure code [DWN5KA] Fan pump solenoid: Disconnection
Failure code [DWN5KB] Fan pump solenoid: Short circuit
Failure code [DXA0KA] TVC Sol.: Disconnection
Failure code [DXA0KB] TVC Sol.: Short circuit
Failure code [DXA0KY] TVC Sol.: Short circuit
Failure code [DXH1KA] Lock-up ECMV: Disconnection
Failure code [DXH1KB] Lock-up ECMV: Short circuit56 topics
  • Failure code [DXH1KY] Lock-up ECMV: Short circuit
  • Failure code [DXH4KA] 1st clutch ECMV: Disconnection
  • Troubleshooting by failure and error codes, Part 7
  • Failure code [DXH4KB] 1st clutch ECMV: Short circuit
  • Failure code [DXH4KY] 1st clutch ECMV: Short circuit
  • Failure code [DXH5KA] 2nd clutch ECMV: Disconnection
  • Failure code [DXH5KB] 2nd clutch ECMV: Short circuit
  • Failure code [DXH5KY] 2nd clutch ECMV: Short circuit
  • Failure code [DXH6KA] 3rd clutch ECMV: Disconnection
  • Failure code [DXH6KB] 3rd clutch ECMV: Short circuit
  • Failure code [DXH6KY] 3rd clutch ECMV: Short circuit
  • Failure code [DXH7KA] R clutch ECMV: Disconnection
  • Failure code [DXH7KB] R clutch ECMV: Short circuit
  • Failure code [DXH7KY] R clutch ECMV: Short circuit
  • Failure code [DXH8KA] F clutch ECMV: Disconnection
  • Failure code [DXH8KB] F clutch ECMV: Short circuit
  • Failure code [DXH8KY] F clutch ECMV: Short circuit
  • Failure code [DXHBKA] Right brake ECMV: Disconnection
  • Failure code [DXHBKB] Right brake ECMV: Short circuit
  • Failure code [DXHBKY] Right brake ECMV: Short circuit
  • Failure code [DXHCKA] Left brake ECMV: Disconnection
  • Failure code [DXHCKB] Left brake ECMV: Short circuit
  • Failure code [DXHCKY] Left brake ECMV: Short circuit
  • Failure code [DXHRKA] Blade up EPC: Disconnection
  • Failure code [DXHRKB] Blade up EPC: Short circuit
  • Failure code [DXHRKY] Blade up EPC: Short circuit
  • Failure code [DXHSKA] Blade down EPC: Disconnection
  • Failure code [DXHSKB] Blade down EPC: Short circuit
  • Failure code [DXHSKY] Blade down EPC: Short circuit
  • Failure code [DXHTKA] Blade left 1 EPC: Disconnection
  • Failure code [DXHTKB] Blade left 1 EPC: Short circuit
  • Failure code [DXHTKY] Blade left 1 EPC: Short circuit
  • Failure code [DXHUKA] Blade right 1 EPC: Disconnection
  • Failure code [DXHUKB] Blade right 1 EPC: Short circuit
  • Failure code [DXHUKY] Blade right 1 EPC: Short circuit
  • Failure code [DXHWKA] Ripper up EPC: Disconnection
  • Failure code [DXHWKB] Ripper up EPC: Short circuit
  • Failure code [DXHWKY] Ripper up EPC: Short circuit
  • Failure code [DXHXKA] Ripper down EPC: Disconnection
  • Failure code [DXHXKB] Ripper down EPC: Short circuit
  • Failure code [DXHXKY] Ripper down EPC: Short circuit
  • Failure code [DXHYKA] Ripper Tilt In EPC: Disconnection
  • Failure code [DXHYKB] Ripper Tilt In EPC: Short circuit
  • Failure code [DXHYKY] Ripper Tilt In EPC: Short circuit
  • Failure code [DXHZKA] Ripper Tilt Back EPC: Disconnection
  • Failure code [DXHZKB] Ripper Tilt Back EPC: Short circuit
  • Failure code [DXHZKY] Ripper Tilt Back EPC: Short circuit
  • Failure code [DXJ4KA] Weq lock Sol.: Disconnection
  • Failure code [DXJ4KB] Weq lock Sol.: Short circuit
  • Troubleshooting by failure and error codes, Part 8
  • Failure code [DXJ8KA] Blade left 2 EPC: Disconnection
  • Failure code [DXJ8KB] Blade left 2 EPC: Short circuit
  • Failure code [DXJ8KY] Blade left 2 EPC: Short circuit
  • Failure code [DXJ9KA] Blade right 2 EPC: Disconnection
  • Failure code [DXJ9KB] Blade right 2 EPC: Short circuit
  • Failure code [DXJ9KY] Blade right 2 EPC: Short circuit
Failure code [DXJAKA] Q-drop EPC: Disconnection
Failure code [DXJAKB] Q-drop EPC: Short circuit
Failure code [DXJAKY] Q-drop EPC: Short circuit
Failure code [DXJBKA] S/C ECMV: Disconnection
Failure code [DXJBKB] S/C ECMV: Short circuit
Failure code [DXJBKY] S/C ECMV: Short circuit
Troubleshooting of electrical system (E-mode)
Before carrying out troubleshooting for electrical system
Information in troubleshooting table
When starting switch turned ON, machine monitor displays nothing
When starting switch turned ON (before startingengine), basic check item lights up
Engine does not start (Engine does not turn)
Preheater does not operate
Precaution item lights up while engine is running
Emergency stop item lights up while engine is running
Engine coolant temperature gauge does not indicate normally
Fuel level gauge does not indicate normally
Power train oil temperature gauge (multi-gauge) does not indicate normally
Hydraulic temperature gauge (multi-gauge) does not indicate normally
Contents of display by machine monitor are different from applicable machine
Machine monitor does not display some items
Function switch does not work
Operation mode does not change
Gearshift mode does not change
Customize function does not operate normally
Customize memory function does not normally
Float mode does not change
Alarm buzzer cannot be stopped
Air conditioner does not operate normally (including air conditioner fault history)
When starting switch is turned OFF, service meter is not displayed
Machine monitor cannot be set in service mode
Ripper pin puller cylinder does not operate
Backup alarm does not sound or does not stop
Headlamp, rear lamp, and ripper point lamp do not light up
Windshield wiper and window washer do not operate
KOMTRAX system does not operate normally
Troubleshooting of hydraulic and mechanical system (H-mode)
Power is low (Drawbar pull is low)
Machine does not travel (at 2nd or 3rd gear speed)
Machine does not start at any gear speed
Machine can travel only forward or in reverse
When gear speed or travel direction is changed, time lag is large
Machine cannot be steered (Machine does not turn right or left)
Steering speed or steering force is low
Brake does not work
Power train oil is overheated
Abnormal sound comes out from around HSS pump or HSS motor
Speed of all work equipment is low
No work equipment moves
Blade lift speed or power is low
Blade tilt speed or power is low
Ripper lift speed or power is low
Ripper tilt speed or power is low
Hydraulic drift of blade lift is large44 topics
  • Hydraulic drift of blade tilt is large
  • Hydraulic drift of ripper lift is large
  • Ripper pin puller cylinder does not operate
  • Blade does not pitch
  • Abnormal sound comes out from around work equipment pump
  • Troubleshooting of engine (S-mode)
  • Method of using troubleshooting chart
  • Starting performance of engine is poor
  • Engine does not start
  • Engine does not pick up smoothly
  • Engine stops during operation
  • Engine does not rotate smoothly
  • Engine lack output (or lacks power)
  • Exhaust gas is black (incomplete combustion)
  • Oil consumption is excessive (or exhaust gas is blue)
  • Oil becomes dirty quickly
  • Fuel consumption is excessive
  • Oil is in coolant (or coolant spurts back or coolant level goes
  • Oil pressure drops
  • Oil level rises (Entry of coolant or fuel)
  • Coolant temperature becomes too high (Overheating)
  • Abnormal noise is made
  • Vibration is excessive
  • General information on disassembly and assembly
  • How to read this manual
  • List of adhesives
  • Special tool list
  • Removal and installation of fuel supply pump assembly
  • Removal and installation of fuel injector assembly
  • Removal and installation of cylinder head assembly
  • Removal and installation of radiator assembly
  • Removal and installation of aftercooler assembly
  • Removal and installation of engine assembly
  • Removal and installation of engine hood assembly
  • Power train, Part 1
  • Removal and installation of damper assembly
  • Disassembly and assembly of damper assembly
  • Removal and installation of power train unit assembly
  • Disconnection and connection of power train unit assembly
  • Hydraulic circuit diagram
  • Power train hydraulic circuit diagram
  • Hydraulic circuit diagram (1/2)
  • Hydraulic circuit diagram (2/2)
  • Electrical circuit diagram

Inside this manual

Real pages from this service manual (1,147 pages). Open the sample pages (PDF, 1457 KB)

Sample pages from the Komatsu Galeo D155AX-6 Bulldozer Service Manual: Diagram, Troubleshooting, Specifications, Foldout diagram
  • Diagram, page 626: Failure code [CA273] PCV2 Short Error
  • Troubleshooting, page 796: Failure code [DFADKX] RL lever 1: Out of normal range
  • Specifications, page 1,034: H-3 Machine does not start at any gear speed
  • Foldout diagram, page 1,145: ELECTRICAL CIRCUIT DIAGRAM

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, 1,147 pages

Quantity one is the manual described above.

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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

Komatsu D155AX-6Operation & Maintenance Manual · EEAM025000 · $69.77Komatsu D155AX-6Operation & Maintenance Manual · TEN00139-07 · $69.95Komatsu D155AX-6Operation & Maintenance Manual · TEN00310-01 · $69.93Komatsu D155AX-6Operation & Maintenance Manual · TEN00342-01 · $69.95Komatsu D155AX-6Operation & Maintenance Manual · TEN00482-06 · $69.79Komatsu D155AX-6Service Manual · SEN00596-17 · $159.53

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