Komatsu WA250-6 Shop Manual page 198

WHEEL LOADER
WA250-6
WA250PZ-6
Machine model
WA250-6
WA250PZ-6
10 Structure, function and
maintenance standard
600 Hydraulic system
Work equipment hydraulic piping diagram ...................................................................................................... 2
Work equipment control lever linkage ............................................................................................................. 6
Hydraulic tank ............................................................................................................................................... 10
4-gear pump.................................................................................................................................................. 12
Work equipment control valve....................................................................................................................... 14
PPC valve ..................................................................................................................................................... 39
Lock valve ..................................................................................................................................................... 54
Accumulator (for PPC circuit)........................................................................................................................ 55
Bypass valve................................................................................................................................................. 56
Quick coupler solenoid valve ........................................................................................................................ 59
ECSS valve................................................................................................................................................... 60
Accumulator (for ECSS)................................................................................................................................ 62
WA250, 250PZ-6
Serial number
75001 and up
75001 and up
SEN03830-00
10
1
10-600