Komatsu 70001 Shop Manual page 7

00 Index and foreword
PPC accumulator ........................................................................................................................ 22
Anti-drop valve for boom ............................................................................................................. 24
Anti-drop valve for arm................................................................................................................ 30
Return oil filter ............................................................................................................................. 37
Center swivel joint ....................................................................................................................... 38
Travel motor ................................................................................................................................ 39
Swing motor ................................................................................................................................ 51
Hydraulic cylinder........................................................................................................................ 60
Work equipment
Work equipment ..........................................................................................................................
Dimensions of components .........................................................................................................
Cab and its attachments
Air conditioner piping...................................................................................................................
Electrical system
Engine control .............................................................................................................................
Electronic control system ............................................................................................................ 13
Monitor system............................................................................................................................ 38
Sensor......................................................................................................................................... 65
KOMTRAX system ...................................................................................................................... 68
20 Standard value table
Standard service value table
Standard value table for engine related parts..............................................................................
Standard value table for chassis related parts ............................................................................
Standard value table for chassis related parts (Loading shovel specification) ............................ 12
30 Testing and adjusting
Testing and adjusting, Part 1
Tools for testing, adjusting and troubleshooting ..........................................................................
Sketches of special tools.............................................................................................................
Testing engine speed ..................................................................................................................
Testing air boost pressure ...........................................................................................................
Testing exhaust temperature....................................................................................................... 10
Testing exhaust gas color............................................................................................................
Adjusting valve clearance ........................................................................................................... 12
Testing compression pressure .................................................................................................... 14
Testing blow-by pressure ............................................................................................................ 16
Testing engine oil pressure ......................................................................................................... 17
Testing EGR valve drive pressure............................................................................................... 18
Handing fuel system parts........................................................................................................... 19
Releasing residual pressure from fuel system ............................................................................ 19
Testing fuel pressure ................................................................................................................... 20
Handing during cylinder cut-out operation .................................................................................. 21
Handing during no injection cranking operation .......................................................................... 21
Testing fuel return and leakage ................................................................................................... 22
Bleeding air from fuel circuit........................................................................................................ 25
Checking fuel circuit for leakage ................................................................................................. 27
Checking and adjusting fan belt and alternator belt .................................................................... 28
Checking and adjusting air conditioner compressor belt tension ................................................ 29
Testing swing circle bearing clearance........................................................................................ 30
Checking and adjusting track shoe tension................................................................................. 31
Testing and adjustment oil pressure in work equipment, swing, and travel circuits .................... 32
Testing control circuit basic pressure .......................................................................................... 36
Checking and adjusting pump PC control circuit oil pressure ..................................................... 37
Checking and adjusting pump LS control circuit oil pressure...................................................... 40
Testing solenoid valve output pressure ....................................................................................... 45
Testing PPC valve output pressure ............................................................................................. 48
PC400, 450-8
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