Hydraulic system
Main pump (A1, A2)
Maximum flow rate 2 x 60.5 l/min (2 x 16 gpm)
Type Variable displacement pump
Gear pump (A3)
Maximum flow 35.2 l/min (9.2 gpm)
Servo pump (A4)
Maximum flow 14.3 l/min (4 gpm)
Type Gear pump
Main control valve
Main relief
pressure
Boom / Dipper arm / Bucket / Travel / X1 / Boom swing: 22.5 ±0.25
MPa (229 ±2.6 kgf cm², 3263 ±36.3 psi) at 60 l/min (16 gpm)
Swing
/ Dozer blade: 21.6 +0.5 MPa (220 +5.1 kgf cm², 3133 +72.5
psi) at 35 l/min (9.2 gpm)
Port relief pressure Boom small chamber / Dipper arm / Bucket / X1 / Boom swing: 25.5
+0.5 MPa (260 +5.1 kgf cm², 3699 +72.5 psi)
Boom
large chamber: 26.0 +0.5 MPa (265 +5.1 kgf cm², 3771 +72.5
psi)
Specifications
Hydraulic system
315
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