Komatsu PC27MR-3 Shop Manual page 6

100 Index
Table of contents
430 Hydraulic system, Part 3
CLSS .............................................................................................................................................................
Operation for each function and valve...........................................................................................................
Swing motor................................................................................................................................................... 46
PPC valve...................................................................................................................................................... 51
500 Work equipment
Work equipment ............................................................................................................................................
Dimensions of each part of work equipment .................................................................................................
600 Cab and its attachments
Floor ..............................................................................................................................................................
Air conditioner................................................................................................................................................
700 Electrical system
Engine control system ...................................................................................................................................
Electric control system...................................................................................................................................
Auto-deceleration function............................................................................................................................. 16
Attachment proportional switch, breaker operation switch, work mode selection, flow control function........ 20
KOMTRAX system ........................................................................................................................................ 30
Component parts of system........................................................................................................................... 33
Monitor system .............................................................................................................................................. 34
Sensors ......................................................................................................................................................... 38
20 Standard value table
100 Standard service value table
Standard service value table for engine related parts....................................................................................
Standard service value table for chassis related parts ..................................................................................
30 Testing and adjusting
100 Testing and adjusting
Tools for testing, adjusting, and troubleshooting ...........................................................................................
Testing engine speed.....................................................................................................................................
Testing exhaust gas color ..............................................................................................................................
Testing and adjusting valve clearance...........................................................................................................
Testing compression pressure.......................................................................................................................
Testing engine oil pressure............................................................................................................................ 10
Testing and adjusting fuel injection timing ..................................................................................................... 11
Testing and adjusting alternator belt tension ................................................................................................. 15
Testing and adjusting air conditioner compressor belt tension ...................................................................... 16
Adjusting fuel control lever ............................................................................................................................ 17
Testing clearance in swing circle bearings .................................................................................................... 18
Testing and adjusting track shoe tension....................................................................................................... 19
Testing and adjusting oil pressures in work equipment, travel, boom swing, swing, and blade circuits ........ 20
Testing and adjusting LS differential pressure ............................................................................................... 25
Adjusting PC valve ........................................................................................................................................ 28
Testing and adjusting control pump circuit oil pressure ................................................................................. 29
Testing solenoid valve output pressure ......................................................................................................... 31
Testing PPC valve output pressure ............................................................................................................... 32
Adjusting PPC valve ...................................................................................................................................... 36
Testing swing holding brake release pressure............................................................................................... 37
Testing and adjusting travel deviation............................................................................................................ 38
Testing oil leakage from work equipment cylinder ......................................................................................... 40
Bleeding air from each part ........................................................................................................................... 42
Releasing residual pressure from hydraulic circuit ........................................................................................ 44
Releasing residual pressure from hydraulic tank........................................................................................... 45
Pressurizing hydraulic tank............................................................................................................................ 45
How to open and close (tilt) floor ................................................................................................................... 46
Inspection procedures for diode .................................................................................................................... 51
Functions and flow of operator and service mode......................................................................................... 52
PC27MR-3, PC30MR-3, PC35MR-3
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