Page 1

SEN00986-11

BULLDOZER

D375A -5E0 SERIAL NUMBERS

50001

and up


SEN00988-11

00 Index and foreword

Composition of shop manual

1

The contents of this shop manual are shown together with Form No. in a list. Note 1: Always keep the latest version of this manual in accordance with this list and utilize accordingly. The marks shown to the right of Form No. denote the following: Q: New issue (to be filed additionally) q: Revision (to be replaced for each Form No.) Note 2: This shop manual can be supplied for each Form No. Note 3: To file this shop manual in the special binder for management, handle it as follows: • Place a divider on the top of each section in the file after matching the Tub No. with No. indicated next to each Section Name shown in the table below: • File overview and other materials in sections in the order shown below and utilize them accordingly. Section Title

Form Number

Shop Manual, contents binder, binder label and tabs

SEN00986-11

00 Index and foreword Index Foreword and general information

SEN00987-11 SEN00988-11 q SEN00989-04

01 Specification Specification and technical data

SEN00990-01 SEN00991-01

10 Structure, function and maintenance standard Engine and cooling system Power train, Part 1 Power train, Part 2 Undercarriage and frame Hydraulic system, Part 1 Hydraulic system, Part 2 Work equipment Cab and its attachments Electrical system

SEN00992-04 SEN00993-01 SEN00994-01 SEN00995-02 SEN00996-02 SEN00997-01 SEN00998-01 SEN00999-01 SEN01000-01 SEN01001-03

20 Standard value table Standard service value table

SEN01002-01 SEN01931-01

30 Testing and adjusting Testing and adjusting, Part 1 Testing and adjusting, Part 2 Testing and adjusting, Part 3 Testing and adjusting, Part 4

SEN01003-04 SEN01932-02 SEN01933-02 SEN01934-02 SEN01935-02 q

40 Troubleshooting Failure code table and fuse locations General information on troubleshooting Troubleshooting by failure code, Part 1 Troubleshooting by failure code, Part 2 Troubleshooting by failure code, Part 3 Troubleshooting by failure code, Part 4

SEN01004-02 SEN01867-02 SEN01868-02 SEN01869-01 SEN01870-01 SEN01871-01 SEN01872-01

2

D375A-5E0


00 Index and foreword

Troubleshooting by failure code, Part 5 Troubleshooting by failure code, Part 6 Troubleshooting by failure code, Part 7 Troubleshooting of electrical system (E-mode) Troubleshooting of hydraulic, mechanical system (H-mode) Troubleshooting of engine (S-mode)

SEN00988-11

SEN01873-02 SEN01874-00 SEN01891-00 SEN01875-02 SEN01876-01 SEN01877-01

50 Disassembly and assembly General information on disassembly and assembly Engine and cooling system Engine Power train, Part 1 Power train, Part 2 Undercarriage and frame, Part 1 Undercarriage and frame, Part 2 Hydraulic system Work equipment Cab and its attachments Electrical system

SEN01005-02 SEN02362-02 SEN02363-01 SEN02364-01 SEN02365-02 SEN02366-01 SEN02367-01 SEN02368-01 SEN02369-01 SEN02370-01 SEN02371-01 SEN02372-01

90 Diagrams and drawings Hydraulic diagrams and drawings Electrical diagrams and drawings

SEN01006-04 SEN01007-02 SEN01008-03

D375A-5E0

3


SEN00988-11

00 Index and foreword

Table of contents

1

00 Index and foreword Index SEN00988-11 2 Composition of shop manual....................................................................................................... 4 Table of contents ......................................................................................................................... SEN00989-04 Foreword and general information Safety notice................................................................................................................................ 2 7 How to read the shop manual ..................................................................................................... 9 Explanation of terms for maintenance standard.......................................................................... Handling of electric equipment and hydraulic component........................................................... 11 Handling of connectors newly used for engines.......................................................................... 20 How to read electric wire code .................................................................................................... 23 Precautions when carrying out operation .................................................................................... 26 Method of disassembling and connecting push-pull type coupler ............................................... 29 Standard tightening torque table ................................................................................................. 32 Conversion table ......................................................................................................................... 36 01 Specification Specification and technical data SEN00991-01 2 Specification drawing................................................................................................................... 3 Specifications .............................................................................................................................. 8 Weight table ................................................................................................................................ Table of fuel, coolant and lubricants ............................................................................................ 10 10 Structure, function and maintenance standard Engine and cooling system SEN00993-01 2 Engine mount .............................................................................................................................. Cooling system............................................................................................................................ 4 6 Cooling fan pump ........................................................................................................................ Cooling fan motor ........................................................................................................................ 22 SEN00994-01 Power train, Part 1 2 Power train .................................................................................................................................. Overall drawing of power train unit.............................................................................................. 4 Power train hydraulic piping drawing........................................................................................... 6 Damper, universal joint................................................................................................................ 8 Torque converter, PTO ................................................................................................................ 10 Scavenging pump........................................................................................................................ 17 Torque converter valve ................................................................................................................ 18 SEN00995-02 Power train, Part 2 2 Transmission control ................................................................................................................... Transmission ............................................................................................................................... 8 Transmission ECMV.................................................................................................................... 22 Transmission lubrication relief valve............................................................................................ 28 Power train pump + lubrication pump.......................................................................................... 29 Steering, brake control ................................................................................................................ 30 Transfer, bevel gear shaft, steering ............................................................................................. 32 Steering ECMV............................................................................................................................ 42 Steering clutch ECMV, Steering brake ECMV ............................................................................. 46 Parking brake valve..................................................................................................................... 53 Sudden stop prevention valve ..................................................................................................... 54 Final drive.................................................................................................................................... 55 Sprocket ...................................................................................................................................... 60 SEN00996-02 Undercarriage and frame 2 Track frame .................................................................................................................................

4

D375A-5E0


00 Index and foreword

SEN00988-11

Recoil spring ............................................................................................................................... 4 6 Idler ............................................................................................................................................. 8 Track roller .................................................................................................................................. Carrier roller ................................................................................................................................ 10 Track roller bogie......................................................................................................................... 11 Track shoe................................................................................................................................... 12 Main frame .................................................................................................................................. 16 Suspension ................................................................................................................................. 18 SEN00997-01 Hydraulic system, Part 1 2 Work equipment hydraulic piping diagram .................................................................................. PPC control piping diagram ........................................................................................................ 6 8 Work equipment control .............................................................................................................. Hydraulic tank ............................................................................................................................. 10 Accumulator ................................................................................................................................ 12 PPC lock valve ............................................................................................................................ 13 PPC valve ................................................................................................................................... 14 Hydraulic cylinder........................................................................................................................ 28 Piston valve................................................................................................................................. 32 Quick drop valve ......................................................................................................................... 33 Pin puller switch .......................................................................................................................... 35 Pin puller solenoid valve ............................................................................................................. 36 Blade control knob (Only the machine with dual tilt) ................................................................... 38 Pitch, dual tilt solenoid valve ....................................................................................................... 39 Work equipment pump ................................................................................................................ 42 SEN00998-01 Hydraulic system, Part 2 2 Control valve ............................................................................................................................... Self pressure reducing valve....................................................................................................... 34 SEN00999-01 Work equipment 2 Cylinder stay ............................................................................................................................... Blade ........................................................................................................................................... 4 Cutting edge, end bit ................................................................................................................... 8 Ripper.......................................................................................................................................... 10 Cab and its attachments SEN01000-01 2 Cab mount................................................................................................................................... Cab.............................................................................................................................................. 3 Air conditioner ............................................................................................................................. 5 SEN01001-03 Electrical system 2 Engine control system................................................................................................................. CRI engine control system .......................................................................................................... 12 Monitor system............................................................................................................................ 14 Machine monitor.......................................................................................................................... 16 Mode selection system................................................................................................................ 30 Electrical equipment.................................................................................................................... 34 Palm command control system ................................................................................................... 36 Sensors ....................................................................................................................................... 38 Vehicle health monitoring system (VHMS).................................................................................. 42 ORBCOMM terminal system ....................................................................................................... 48 20 Standard value table Standard service value table SEN01931-01 2 Standard value table for engine .................................................................................................. Standard value table for machine................................................................................................ 3

D375A-5E0

5


SEN00988-11

00 Index and foreword

30 Testing and adjusting Testing and adjusting, Part 1 SEN01932-02 3 Tools for testing, adjusting, and troubleshooting ......................................................................... Testing engine speed .................................................................................................................. 6 9 Testing intake air pressure (boost pressure) ............................................................................... Testing exhaust temperature ....................................................................................................... 11 Testing exhaust gas color............................................................................................................ 13 Adjusting valve clearance............................................................................................................ 15 Testing compression pressure..................................................................................................... 17 Testing blow-by pressure............................................................................................................. 20 Testing engine oil pressure.......................................................................................................... 21 Testing EGR valve and bypass valve drive oil pressure.............................................................. 22 Handling of fuel system devices.................................................................................................. 24 Releasing residual pressure from fuel system ............................................................................ 24 Testing fuel pressure ................................................................................................................... 25 Handling of reduced cylinder mode operation............................................................................. 26 Handling of no injection cranking operation ................................................................................ 26 Testing leakage from pressure limiter and return rate from injector ............................................ 27 Bleeding air from fuel circuit ........................................................................................................ 30 Testing fuel circuit for leakage ..................................................................................................... 32 Handling controller voltage circuit ............................................................................................... 33 Replacing and adjusting alternator and air conditioner compressor belt..................................... 33 Testing fan motor speed .............................................................................................................. 34 Testing fan circuit oil pressure ..................................................................................................... 36 Bleeding air from fan pump ......................................................................................................... 37 Adjusting fuel control dial and decelerator pedal......................................................................... 38 Testing and adjusting, Part 2 SEN01933-02 3 Testing power train oil pressure................................................................................................... Adjusting transmission speed sensor.......................................................................................... 13 Simple procedure for testing brake performance ........................................................................ 14 Adjusting brake pedal and parking brake lever ........................................................................... 16 Adjusting position of pccs lever console...................................................................................... 19 Emergency escape method when there is failure in power train................................................. 20 Inspecting wear of sprocket......................................................................................................... 22 Testing and adjusting track shoe tension .................................................................................... 23 Testing work equipment oil pressure ........................................................................................... 24 Testing control circuit main pressure ........................................................................................... 27 Testing PPC valve output pressure ............................................................................................. 28 Adjusting play of PPC valve ........................................................................................................ 30 Testing output pressure of ripper pin-puller solenoid valve ......................................................... 31 Checking location of cause of hydraulic drift of blade and ripper ................................................ 32 Testing leakage inside work equipment cylinder ......................................................................... 33 Releasing remaining pressure in work equipment cylinders ....................................................... 34 Bleeding air from work equipment cylinders................................................................................ 34 Adjusting ripper lever position ..................................................................................................... 35 Adjusting work equipment lock lever ........................................................................................... 36 Testing and adjusting operator's cab ........................................................................................... 37 Adjusting blade............................................................................................................................ 41 Testing and adjusting, Part 3 SEN01934-02 Special functions of monitor panel (EMMS) ................................................................................ 2 Testing and adjusting, Part 4 SEN01935-02 2 Adjustment method when controller has been replaced ............................................................. 4 Preparation work for troubleshooting for electrical equipment system ........................................ Inspection procedure of diode ..................................................................................................... 7 8 Handling of optional devices ....................................................................................................... 9 Request for opening ORBCOMM terminal .................................................................................. Initialization procedures for VHMS controller .............................................................................. 11

6

D375A-5E0


00 Index and foreword

SEN00988-11

Using method of KOMTRAX functions of ORBCOMM terminal .................................................. 33 Precautions for replacing VHMS controller ................................................................................. 36 Pm Clinic service......................................................................................................................... 42 40 Troubleshooting Failure code table and fuse locations SEN01867-02 Failure codes table ...................................................................................................................... 2 Fuse locations ............................................................................................................................. 12 General information on troubleshooting SEN01868-02 2 Points to remember when troubleshooting.................................................................................. Sequence of events in troubleshooting ....................................................................................... 3 Check before troubleshooting ..................................................................................................... 4 5 Classification and procedures for troubleshooting ...................................................................... 8 Information in troubleshooting table ............................................................................................ Connection table for connector pin numbers .............................................................................. 10 T-branch box and T-branch adapter table ................................................................................... 46 Troubleshooting by failure code, Part 1 SEN01869-01 3 Failure code [1380MW] Lockup clutch slip.................................................................................. 4 Failure code [1500L0] Transmission clutch dual engagement .................................................... 5 Failure code [15E0MW] Transmission clutch slip........................................................................ Failure code [15SAL1] When forward clutch oil pressure command current is OFF,  fill signal is ON ..................................................................................................................... 6 Failure code [15SALH] When forward clutch oil pressure command current is ON,  fill signal is OFF ................................................................................................................... 8 Failure code [15SBL1] When reverse clutch oil pressure command current is OFF,  fill signal is ON ..................................................................................................................... 10 Failure code [15SBLH] When reverse clutch oil pressure command current is ON,  fill signal is OFF ................................................................................................................... 12 Failure code [15SEL1] When 1st clutch oil pressure command current is OFF,  fill signal is ON ..................................................................................................................... 14 Failure code [15SELH] When 1st clutch oil pressure command current is ON,  fill signal is OFF ................................................................................................................... 16 Failure code [15SFL1] When 2nd clutch oil pressure command current is OFF,  fill signal is ON ..................................................................................................................... 18 Failure code [15SFLH] When 2nd clutch oil pressure command current is ON,  fill signal is OFF ................................................................................................................... 20 Failure code [15SGL1] When 3rd clutch oil pressure command current is OFF,  fill signal is ON ..................................................................................................................... 22 Failure code [15SGLH] When 3rd clutch oil pressure command current is ON,  fill signal is OFF ................................................................................................................... 24 Failure code [1800MW] Power train clutch slip ........................................................................... 26 Failure code [2201L1] When right steering clutch oil pressure command current is OFF,  fill signal is ON ..................................................................................................................... 28 Failure code [2201LH] When right steering clutch oil pressure command current is ON,  fill signal is OFF ................................................................................................................... 30 Failure code [2202L1] When left steering clutch oil pressure command current is OFF,  fill signal is ON ..................................................................................................................... 32 Failure code [2202LH] When left steering clutch oil pressure command current is ON,  fill signal is OFF ................................................................................................................... 34 Failure code [2300NR] Brake thermal load abnormality ............................................................. 36 Failure code [2301L1] When right steering brake oil pressure command current is OFF,  fill signal is ON ..................................................................................................................... 38 Failure code [2301LH] When right steering brake oil pressure command current is ON,  fill signal is OFF ................................................................................................................... 40 Failure code [2301NR] Right steering brake thermal load abnormality....................................... 42 Failure code [2302L1] When left steering brake oil pressure command current is OFF,  fill signal is ON ..................................................................................................................... 44 D375A-5E0

7


SEN00988-11

00 Index and foreword

Failure code [2302LH] When left steering brake oil pressure command current is ON, ď€ fill signal is OFF.................................................................................................................... 46 Failure code [2302NR] Left steering brake thermal load abnormality ......................................... 48 Failure code [6001ZK] Failure code for design ........................................................................... 48 Failure code [A000NS] Engine overheat ..................................................................................... 49 Failure code [AA10NX] Air cleaner clogging ............................................................................... 50 Failure code [AB00MA] Alternator malfunction ........................................................................... 51 Failure code [B@BAZG] Engine oil pressure low........................................................................ 52 Failure code [B@BAZK] Engine oil level reduction ..................................................................... 53 Failure code [B@BCNS] Engine coolant overheat...................................................................... 54 Failure code [B@BCZK] Radiator coolant level reduction........................................................... 55 Failure code [B@BEBF] Water in engine fuel ............................................................................. 56 Failure code [B@BFZK] Fuel level reduction .............................................................................. 57 Failure code [B@CENS] Power train oil overheat....................................................................... 58 Failure code [B@CHZG] HSS charge oil pressure reduction...................................................... 59 Failure code [B@CHZK] Power train oil level reduction.............................................................. 59 Failure code [B@GAZK] Battery electrolyte level reduction........................................................ 60 Failure code [B@HANS] Hydraulic oil overheat .......................................................................... 60 Failure code [B@HAZK] Hydraulic oil level reduction ................................................................. 61 Troubleshooting by failure code, Part 2 SEN01870-01 4 Failure code [CA111] Engine controller internal abnormality....................................................... 6 Failure code [CA115] Engine Ne/Bkup speed sensor abnormality.............................................. 8 Failure code [CA122] Charge pressure sensor abnormally high level ........................................ Failure code [CA123] Charge pressure sensor abnormally low level.......................................... 10 Failure code [CA131] Throttle sensor abnormally high level....................................................... 12 Failure code [CA132] Throttle sensor abnormally low level ........................................................ 14 Failure code [CA135] Engine oil pressure sensor abnormally high level .................................... 16 Failure code [CA141] Engine oil pressure sensor abnormally low level...................................... 18 Failure code [CA144] Coolant temperature sensor abnormally high level .................................. 20 Failure code [CA145] Coolant temperature sensor abnormally low level.................................... 22 Failure code [CA153] Charge temperature sensor abnormally high level................................... 24 Failure code [CA154] Charge temperature sensor abnormally low level .................................... 26 Failure code [CA187] Sensor power supply 2 abnormally low level............................................ 27 Failure code [CA212] Engine oil temperature sensor abnormally high level............................... 28 Failure code [CA213] Engine oil temperature sensor abnormally low level ................................ 30 Failure code [CA221] Ambient temperature sensor abnormally high level ................................. 32 Failure code [CA222] Ambient temperature sensor abnormally low level................................... 34 Failure code [CA227] Sensor power supply 2 abnormally high level .......................................... 36 Failure code [CA234] Engine overspeed..................................................................................... 38 Failure code [CA238] Ne speed sensor power supply abnormality............................................. 40 Failure code [CA263] Fuel temperature sensor abnormally high level........................................ 42 Failure code [CA265] Fuel temperature sensor abnormally low level ......................................... 44 Failure code [CA271] PCV1 short circuit..................................................................................... 46 Failure code [CA272] PCV1 disconnection ................................................................................. 48 Failure code [CA273] PCV2 short circuit..................................................................................... 50 Failure code [CA274] PCV2 disconnection ................................................................................. 52 Failure code [CA322] Injector #1 system disconnection or short circuit...................................... 54 Failure code [CA323] Injector #5 system disconnection or short circuit...................................... 56 Failure code [CA324] Injector #3 system disconnection or short circuit...................................... 58 Failure code [CA325] Injector #6 system disconnection or short circuit...................................... 60 Failure code [CA331] Injector #2 system disconnection or short circuit...................................... 62 Failure code [CA332] Injector #4 system disconnection or short circuit...................................... 64 Failure code [CA342] Engine controller data mismatch .............................................................. 66 Failure code [CA351] Injector drive circuit abnormality ............................................................... 68 Failure code [CA352] Sensor power supply 1 abnormally low level............................................ 70 Failure code [CA386] Sensor power supply 1 abnormally high level .......................................... 72 Failure code [CA441] Power supply voltage abnormally low level .............................................. 74 Failure code [CA442] Power supply voltage abnormally high level............................................. 74

8

D375A-5E0


Thank you very much for your reading. Please Click Here. Then Get COMPLETE MANUAL. NO WAITING

NOTE: If there is no response to click on the link above, please download the PDF document first and then click on it.


00 Index and foreword

SEN00988-11

Failure code [CA449] Common rail pressure abnormally high pressure 2.................................. 75 Failure code [CA451] Common rail pressure sensor abnormally high level ............................... 76 Failure code [CA452] Common rail pressure sensor abnormally low level ................................. 78 Failure code [CA553] Common rail pressure abnormally high pressure 1.................................. 79 Failure code [CA554] Common rail pressure sensor in-range abnormality ................................ 80 Failure code [CA559] Supply pump low pressure 1 .................................................................... 81 Failure code [CA689] Engine Ne speed sensor abnormality ...................................................... 86 Failure code [CA731] Engine Bkup speed sensor phase abnormality ........................................ 88 Failure code [CA757] Engine controller all data loss .................................................................. 89 Failure code [CA778] Engine Bkup speed sensor abnormality................................................... 90 Troubleshooting by failure code, Part 3 SEN01871-01 3 Failure code [CA1228] EGR valve servo abnormality 1.............................................................. 4 Failure code [CA1625] EGR valve servo abnormality 2.............................................................. 6 Failure code [CA1633] CAN communication error (Engine controller)........................................ 8 Failure code [CA2185] Throttle sensor power supply abnormally high level .............................. Failure code [CA2186] Throttle sensor power supply abnormally low level ................................ 10 Failure code [CA2249] Supply pump low pressure 2 .................................................................. 11 Failure code [CA2271] EGR valve lift sensor abnormally high level ........................................... 12 Failure code [CA2272] EGR valve lift sensor abnormally low level ............................................ 14 Failure code [CA2351] EGR valve solenoid drive short circuit.................................................... 16 Failure code [CA2352] EGR valve solenoid drive disconnection ................................................ 18 Failure code [D110KA] Battery relay hold line disconnection...................................................... 20 Failure code [D110KB] Battery relay hold line short circuit ......................................................... 22 Failure code [D130KA] Neutral safety relay disconnection ......................................................... 24 Failure code [D130KB] Neutral safety relay short circuit............................................................. 26 Failure code [D161KA] Backup alarm relay disconnection ......................................................... 28 Failure code [D161KB] Backup alarm relay short circuit ............................................................. 30 Failure code [D182KZ] Preheater relay disconnection or short circuit ........................................ 32 Failure code [D190KA] Engine controller ACC signal cut relay disconnection ........................... 34 Failure code [D190KB] Engine controller ACC signal cut relay short circuit ............................... 36 Failure code [D5ZRKA] Snap shot switch disconnection ............................................................ 38 Failure code [D5ZRKB] Snap shot switch short circuit................................................................ 39 Failure code [DAFRKR] Machine monitor CAN communication error......................................... 40 Failure code [daFRKR] Machine monitor CAN communication error.......................................... 42 Failure code [dAFRKR] Machine monitor CAN communication error ......................................... 44 Failure code [DAQ0KT] Transmission controller internal abnormality......................................... 46 Failure code [DAQ1KK] Transmission controller main power supply voltage reduction ............. 48 Failure code [DAQ2KK] Transmission controller load power supply voltage reduction .............. 50 Failure code [DAQ5KK] Transmission controller sensor 5V power supply (1) ď€ voltage reduction.................................................................................................................. 52 Failure code [DAQ6KK] Transmission controller sensor 24V power supply voltage reduction ... 54 Failure code [DAQ7KK] Transmission controller sensor 5V power supply (2)  voltage reduction.................................................................................................................. 56 Failure code [DAQ9KQ] Transmission controller model selection signal disagreement ............. 58 Failure code [DAQRKR] Transmission controller CAN communication error.............................. 60 Failure code [DAQSKR] Transmission controller S-NET communication error........................... 62 Troubleshooting by failure code, Part 4 SEN01872-01 4 Failure code [DB2RKR] Engine controller CAN communication error ........................................ 6 Failure code [dB2RKR] Engine controller CAN communication error ......................................... 8 Failure code [DB30KT] Steering controller internal abnormality ................................................. Failure code [DB31KK] Steering controller main power supply voltage reduction ...................... 10 Failure code [DB32KK] Steering controller load power supply voltage reduction ....................... 12 Failure code [DB35KK] Steering controller sensor 5V power supply (1) voltage reduction ........ 14 Failure code [DB36KK] Steering controller sensor 24V power supply voltage reduction ............ 16 Failure code [DB37KK] Steering controller sensor 5V power supply (2) voltage reduction ........ 18 Failure code [DB39KQ] Steering controller model selection signal disagreement ...................... 20 Failure code [dB3RKR] Steering controller CAN communication error ....................................... 22

D375A-5E0

9


SEN00988-11

00 Index and foreword

Failure code [DB3SKR] Steering controller S-NET communication error.................................... 24 Failure code [DBB0KK] (or VHMS LED display "n901") VHMS supply voltage abnormality....... 26 Failure code [DBB0KQ] (or VHMS LED display "nF11") VHMS connector connection  abnormality........................................................................................................................... 28 Failure code [DBB3KK] (or VHMS LED display "n905") VHMS controller battery direct  power supply voltage reduction............................................................................................ 30 Failure code [DBB5KP] (or VHMS LED display "n904") Sensor power supply (5V) system  abnormality........................................................................................................................... 32 Failure code [DBB6KP] (or VHMS LED display "n902") Sensor power supply (24V) system  disconnection or short circuit................................................................................................ 34 Failure code [DBB7KP] (or VHMS LED display "n903") Sensor power supply (12V) system  disconnection or short circuit................................................................................................ 36 Failure code [DBBQKR] (or VHMS LED display "n802") CAN communication error  (VHMS controller)................................................................................................................. 38 Failure code [dbBRKR] VHMS controller CAN communication error .......................................... 42 Failure code [DD12KA] Shift-up switch disconnection ................................................................ 44 Failure code [DD12KB] Shift-up switch short circuit .................................................................... 46 Failure code [DD13KA] Shift-down switch disconnection............................................................ 48 Failure code [DD13KB] Shift-down switch short circuit ............................................................... 50 Failure code [DD14KA] Parking brake lever switch disconnection.............................................. 52 Failure code [DD14KB] Parking brake lever switch short circuit ................................................. 54 Failure code [DDB9L4] Reverse switch disagreement................................................................ 56 Failure code [DDK3L4] Forward switch signal disagreement...................................................... 58 Troubleshooting by failure code, Part 5 SEN01873-02 4 Failure code [DDK5KA] Shift switch disconnection ..................................................................... Failure code [DDK5KB] Shift switch short circuit......................................................................... 6 8 Failure code [DDN2LD] Blade tilt right oil pressure switch is held down for long time ................ Failure code [DDN3LD] Blade tilt left oil pressure switch is held down for long time .................. 10 Failure code [DDN7KA] Blade pitch switch disconnection .......................................................... 12 Failure code [DDN7KB] Blade pitch switch short circuit.............................................................. 14 Failure code [DDN9KA] Blade tilt switch disconnection .............................................................. 16 Failure code [DDN9KB] Blade tilt switch short circuit.................................................................. 18 Failure code [DDNALD] Blade lift raise oil pressure switch is held down for long time ............... 20 Failure code [DDNBLD] Ripper lift raise oil pressure switch is held down for long time ............. 22 Failure code [DDNCLD] Ripper lift lower oil pressure switch is held down for long time ............ 24 Failure code [DDNDLD] Ripper tilt in oil pressure switch is held down for long time .................. 26 Failure code [DDNELD] Ripper tilt back oil pressure switch is held down for long time.............. 28 Failure code [DDNFLD] Blade lift lower oil pressure switch is held down for long time .............. 30 Failure code [DDQ2KA] Parking brake lever switch disconnection............................................. 32 Failure code [DDQ2KB] Parking brake lever switch short circuit ................................................ 34 Failure code [DDQ2L4] Parking brake lever switch ON/OFF signal disagreement..................... 36 Failure code [dDQ2L4] Parking brake lever switch ON/OFF signal disagreement ..................... 37 Failure code [DDT5KA] Neutral switch disconnection................................................................. 38 Failure code [DDT5KB] Neutral switch short circuit .................................................................... 40 Failure code [DDT5KQ] Lever specification selection signal disagreement................................ 42 Failure code [DGE5KX] (or VHMS LED display "n40") Ambient temperature sensor system  disconnection or short circuit................................................................................................ 44 Failure code [DGS1KX] Hydraulic oil temperature sensor signal out of range............................ 46 Failure code [DGT1KA] Power train oil temperature sensor disconnection ................................ 48 Failure code [DGT1KX] Power train oil temperature sensor input signal out of range................ 50 Failure code [DGT5KA] (or VHMS LED display "n322") Front exhaust temperature sensor  system short circuit .............................................................................................................. 52 Failure code [DGT5KB] (or VHMS LED display "n321") Front exhaust temperature sensor  system disconnection........................................................................................................... 54 Failure code [DGT6KA] (or VHMS LED display "n312") Rear exhaust temperature sensor  system short circuit .............................................................................................................. 56 Failure code [DGT6KB] (or VHMS LED display "n311") Rear exhaust temperature sensor  system disconnection........................................................................................................... 58

10

D375A-5E0


00 Index and foreword

SEN00988-11

Failure code [DH22KA] Work equipment pump oil pressure sensor 1 disconnection ................. 60 Failure code [DH22KB] Work equipment pump oil pressure sensor 1 short circuit..................... 62 Failure code [DH23KA] Work equipment pump oil pressure sensor 2 disconnection ................. 64 Failure code [DH23KB] Work equipment pump oil pressure sensor 2 short circuit..................... 66 Failure code [DHE5KB] (or VHMS LED display "n332") Engine blow-by pressure sensor  system disconnection........................................................................................................... 68 Failure code [DHE5KY] (or VHMS LED display "n331") Engine blow-by pressure sensor  system short circuit .............................................................................................................. 70 Failure code [DHT3KX] (or VHMS LED display "n614") Transmission oil pressure sensor  input signal out of range....................................................................................................... 72 Failure code [DK10KA] Fuel control dial disconnection .............................................................. 74 Failure code [DK10KB] Fuel control dial short circuit.................................................................. 76 Troubleshooting by failure code, Part 6 SEN01874-00 4 Failure code [DK30KA] Steering potentiometer 1 disconnection ................................................ 6 Failure code [DK30KB] Steering potentiometer 1 short circuit .................................................... 8 Failure code [DK30KX] Steering potentiometer 1 input signal out of range ................................ 9 Failure code [DK30KZ] Steering potentiometer 1 disconnection or short circuit ......................... Failure code [DK30L8] Steering potentiometer 1 analog signal disagreement ........................... 10 Failure code [DK31KA] Steering potentiometer 2 disconnection ................................................ 12 Failure code [DK31KB] Steering potentiometer 2 short circuit .................................................... 14 Failure code [DK40KA] Brake potentiometer disconnection ....................................................... 16 Failure code [DK40KB] Brake potentiometer short circuit........................................................... 18 Failure code [DK55KX] Direction potentiometer input signal out of range .................................. 20 Failure code [DK55KZ] Direction potentiometer disconnection or short circuit ........................... 21 Failure code [DK55L8] Direction potentiometer analog signal disagreement ............................. 22 Failure code [DK56KA] Direction potentiometer 1 disconnection ............................................... 24 Failure code [DK56KB] Direction potentiometer 1 short circuit ................................................... 26 Failure code [DK57KA] Direction potentiometer 2 disconnection ............................................... 28 Failure code [DK57KB] Direction potentiometer 2 short circuit ................................................... 30 Failure code [DK60KA] Acceleration sensor disconnection ........................................................ 32 Failure code [DK60KB] Acceleration sensor short circuit............................................................ 34 Failure code [DKH1KA] Pitch angle sensor disconnection ......................................................... 36 Failure code [DKH1KB] Pitch angle sensor short circuit ............................................................. 38 Failure code [DKH1KX] Pitch angle sensor input signal out of range ......................................... 39 Failure code [DLF1KA] Torque converter output speed sensor disconnection ........................... 40 Failure code [DLT3KA] Transmission output speed sensor disconnection 1 .............................. 41 Failure code [dLT3KA] Transmission output speed sensor disconnection 2 ............................... 42 Failure code [DLT3KB] Transmission output speed sensor short circuit ..................................... 43 Failure code [DV00KB] Alarm buzzer short circuit ...................................................................... 44 Failure code [DW59KA] Blade dual selector solenoid disconnection.......................................... 45 Failure code [DW59KB] Blade dual selector solenoid short circuit ............................................. 46 Failure code [DW59KY] Blade dual selector solenoid hot short.................................................. 47 Failure code [DW5AKA] Blade pitch selector solenoid disconnection ........................................ 48 Failure code [DW5AKB] Blade pitch selector solenoid short circuit ............................................ 49 Failure code [DW5AKY] Blade pitch selector solenoid hot short ................................................ 50 Failure code [DW7BKA] Fan reverse solenoid disconnection..................................................... 51 Failure code [DW7BKB] Fan reverse solenoid short circuit ........................................................ 52 Failure code [DW7BKY] Fan reverse solenoid hot short............................................................. 53 Failure code [DWN3KA] Sudden stop prevention solenoid disconnection.................................. 54 Failure code [DWN3KB] Sudden stop prevention solenoid short circuit ..................................... 56 Failure code [DWN3KY] Sudden stop prevention solenoid hot short.......................................... 58 Failure code [DWN5KA] Fan pulley solenoid 1 disconnection .................................................... 60 Failure code [DWN5KB] Fan pulley solenoid 1 short circuit........................................................ 62 Failure code [DWN5KY] Fan pulley solenoid 1 hot short ............................................................ 64 Failure code [DWNCKA] Fan pulley solenoid 2 disconnection ................................................... 66 Failure code [DWNCKB] Fan pulley solenoid 2 short circuit ....................................................... 68 Failure code [DWNCKY] Fan pulley solenoid 2 hot short ........................................................... 70 Troubleshooting by failure code, Part 7 SEN01891-00 D375A-5E0

11

Profile for 1632762

Komatsu D375A-5E0 Dozer Bulldozer Service Repair Manual SN 50001 and up  

Komatsu D375A-5E0 Dozer Bulldozer Service Repair Manual SN 50001 and up  

Profile for 1632762
Advertisement