Komatsu ecot3 WA200-6 Shop Manual page 8

SEN03871-05
30 Testing and adjusting
110 Testing and adjusting, Part 1
Tools for testing, adjusting, and troubleshooting ...........................................................................................
Sketches of special tools...............................................................................................................................
Measuring engine speed...............................................................................................................................
Measuring exhaust gas color ........................................................................................................................ 10
Adjusting valve clearance ............................................................................................................................. 11
Measuring compression pressure ................................................................................................................. 13
Measuring blow-by pressure ......................................................................................................................... 16
Testing engine oil pressure ........................................................................................................................... 17
Measuring intake air (boost) pressure........................................................................................................... 18
Handling fuel system equipment ................................................................................................................... 20
Releasing residual pressure in fuel system................................................................................................... 20
Measuring fuel pressure................................................................................................................................ 21
Measuring fuel return rate and leakage ........................................................................................................ 23
Bleeding air from fuel circuit.......................................................................................................................... 27
Checking leakage in fuel system................................................................................................................... 28
Handling cylinder cut-out mode operation..................................................................................................... 29
Handling no-injection cranking operation ...................................................................................................... 29
Handling controller voltage circuit ................................................................................................................. 30
Check of muffler and muffler stack for looseness and damage .................................................................... 30
Check of muffler function .............................................................................................................................. 31
Check of installed condition of cylinder head and manifolds......................................................................... 31
Check of engine piping for damage and looseness ...................................................................................... 32
Testing and adjusting air conditioner compressor belt tension...................................................................... 32
Replacing alternator belt ............................................................................................................................... 33
120 Testing and adjusting, Part 2
Checking operating force of accelerator pedal..............................................................................................
Checking directional lever .............................................................................................................................
Testing and adjusting HST oil pressure.........................................................................................................
Testing clutch control pressure...................................................................................................................... 10
Testing and adjusting steering wheel ............................................................................................................ 11
Testing and adjusting steering oil pressure ................................................................................................... 13
Bleeding air from steering circuit................................................................................................................... 15
Testing hydraulic fan ..................................................................................................................................... 16
Measuring brake pedal.................................................................................................................................. 18
Testing and adjusting brake pedal linkage .................................................................................................... 19
Measuring brake performance ...................................................................................................................... 20
Testing and adjusting accumulator charge pressure..................................................................................... 21
Testing wheel brake oil pressure................................................................................................................... 23
Testing wear of brake disc............................................................................................................................. 26
Bleeding air from wheel brake circuit ............................................................................................................ 27
Releasing residual pressure in brake accumulator circuit............................................................................. 28
Testing parking brake performance............................................................................................................... 29
Testing and adjusting parking brake control cable ........................................................................................ 30
Measuring and adjusting work equipment control lever ................................................................................ 31
Testing and adjusting work equipment hydraulic pressure............................................................................ 32
Testing work equipment PPC oil pressure .................................................................................................... 33
Bleeding air from hydraulic circuit ................................................................................................................. 35
Releasing remaining pressure in hydraulic circuit......................................................................................... 36
Testing and adjusting bucket positioner ........................................................................................................ 37
Testing and adjusting boom kick-out switch .................................................................................................. 39
Checking proximity switch operation pilot lamp ............................................................................................ 40
Procedure for testing diodes ......................................................................................................................... 41
Preparation work for troubleshooting for electric system .............................................................................. 43
Starting KOMTRAX terminal operations........................................................................................................ 47
Indicator lamps of KOMTRAX terminal ......................................................................................................... 51
6
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100 Index
Table of contents
SEN03885-02
2
7
8
SEN03886-03
3
4
5
WA200, 200PZ-6