Komatsu WA320PZ-6 Wheel Loader Service Repair Manual SN:70092 and up

Page 8

100 Index Table of contents

SEN04171-00

130 Testing and adjusting, Part 3 SEN04187-00 Adjusting machine monitor ............................................................................................................................ 2 Adjusting replaced, reassembled or added sensor, controller, etc. with machine monitor ............................ 3 Special functions of machine monitor (EMMS).............................................................................................. 5 Pm clinic inspection chart .............................................................................................................................. 58 40 Troubleshooting 100 Failure code table and fuse locations SEN04188-00 Failure codes table ........................................................................................................................................ 2 Fuse locations ............................................................................................................................................... 8 200 General information on troubleshooting SEN04189-00 Points to remember when troubleshooting .................................................................................................... 2 Sequence of events in troubleshooting ......................................................................................................... 3 Testing before troubleshooting ...................................................................................................................... 4 Classification and procedures of troubleshooting.......................................................................................... 5 Information contained in troubleshooting table.............................................................................................. 8 Connection table for connector pin numbers................................................................................................. 10 T- branch box and T- branch adapter table ................................................................................................... 46 310 Troubleshooting by failure code (Display of code), Part 1 SEN04190-00 Failure code [2G40ZG] Brake: Oil pressure reduction .................................................................................. 2 Failure code [6091NX] HST filter: Clogging................................................................................................... 4 Failure code [989FN1] Travel speed: Overrun alarm .................................................................................... 5 Failure code [AA1ANX] Air cleaner: Clogging ............................................................................................... 6 Failure code [AB00L6] Alternator R system: Hot short.................................................................................. 8 Failure code [AB00MA] Alternator R system: Ground fault/Disconnection/Low charge voltage ................... 10 Failure code [B@BAZG] Engine: Oil pressure reduction............................................................................... 12 Failure code [B@BAZK] Engine oil: Low level............................................................................................... 13 Failure code [B@BCNS] Engine: Overheat................................................................................................... 14 Failure code [B@BCZK] Engine: Low coolant level ...................................................................................... 16 Failure code [B@C6NS] Front brake: High oil temperature .......................................................................... 18 Failure code [B@CRNS] HST: High oil temperature ..................................................................................... 19 320 Troubleshooting by failure code (Display of code), Part 2 SEN04191-00 Failure code [CA111] Abnormality in engine controller .................................................................................. 3 Failure code [CA115] Engine Ne or Bkup speed sensor error....................................................................... 4 Failure code [CA122] Charge pressure sensor high error............................................................................. 6 Failure code [CA123] Charge pressure sensor low error .............................................................................. 8 Failure code [CA131] Throttle sensor high error ........................................................................................... 10 Failure code [CA132] Throttle sensor low error............................................................................................. 12 Failure code [CA144] Coolant sensor high error ........................................................................................... 14 Failure code [CA145] Coolant sensor low error............................................................................................. 16 Failure code [CA153] Charge temperature sensor high error ....................................................................... 18 Failure code [CA154] Charge temperature sensor low error......................................................................... 20 Failure code [CA155] Derating of speed by abnormally high charge temperature........................................ 22 Failure code [CA187] Sensor power supply 2 low error ................................................................................ 24 Failure code [CA221] Atmospheric pressure sensor high error..................................................................... 26 Failure code [CA222] Atmospheric sensor low error ..................................................................................... 28 Failure code [CA227] Sensor power supply 2 high error............................................................................... 30 Failure code [CA234] Engine overspeed....................................................................................................... 31 Failure code [CA238] Ne speed sensor power supply error.......................................................................... 32 Failure code [CA271] IMV (IMA) Short circuit................................................................................................ 33 Failure code [CA272] IMV (IMA) Disconnection ............................................................................................ 34 Failure code [CA322] Injector #1 open/short error ........................................................................................ 36 Failure code [CA323] Injector #5 open/short error ........................................................................................ 38 Failure code [CA324] Injector #3 open/short error ........................................................................................ 40 Failure code [CA325] Injector #6 open/short error ........................................................................................ 42 Failure code [CA331] Injector #2 open/short error ........................................................................................ 44 Failure code [CA332] Injector #4 open/short error ........................................................................................ 46

WA320, 320PZ-6

00-100

7


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