Komatsu ecot3 PC300LC-8 Shop Manual page 156

Hydraulic excavator
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SEN01994-01
2.
If the cylinder head pressure is higher than the bottom pressure (digging work, etc.)
Function
Check valve (6) provided to regeneration cir-
q
cuit (C) closes to shut off the flow from the cyl-
inder bottom to the head.
30
10 Structure, function and maintenance standard
PC300, 350-8

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Ecot3 pc300-8Ecot3 pc350lc-8Ecot3 pc350-8

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