Maintenance Specification; Main Relief Valve (At The Measurement Port On The Machine); Overload Relief Valve (At The Measurment Port On The Machine) - Kubota KX71-3 Workshop Manual

KX61-3, KX71-3 WSM-M
k. Maintenance specification

1. Main relief valve (at the measurement port on the machine)

No. Location
1 Pump 1, a1
2 Pump 2, a2
3 Pump 3, a3
4 Pilot pump, ap

2. Overload relief valve (at the measurment port on the machine)

No. Location
5 b4, b5
6 b6
7 b2, b3
8 b1
9 c1
Operating work Unit
Mpa
Travel right, Boom,
kgf/cm
Bucket
psi
Mpa
Travel left, Arm, Aux-
kgf/cm
iliary
psi
Mpa
Dozer, Swing, Swivel
kgf/cm
psi
Mpa
Pilot valve,
2nd speed,
kgf/cm
negative brake
psi
Operating work Unit
Mpa
Boom up
kgf/cm
Boom down
psi
Mpa
Bucket crowd
kgf/cm
psi
Mpa
Arm dump
kgf/cm
Arm crowd
psi
Mpa
Dozer down
kgf/cm
psi
Mpa
Swivel motor
kgf/cm
psi
KX61-3 EU KX71-3 EU
22.6 ±1.0 23.5 ±1.0
2
230 ±10 240 ±10
3271 ±140 3414 ±140
22.6 ±1.0 23.5 ±1.0
2
230 ±10 240 ±10
3271 ±140 3414 ±140
17.2 ±1.0 20.6 ±1.0
2
175 ±10 210 ±10
2489 ±140 2987 ±140
3.9 ±0.5
←
2
40 ±5
569 ±70
KX61-3 EU KX71-3 EU
2
2
2
2
2
M-IV-43
Hydraulic System
KX71-3 PP Remarks
21.6 ±1.0
220 ±10
3129 ±140
21.6 ±1.0
220 ±10
Oil temp
3129 ±140
50 ±5°C
Engine RPM
Rated ~Max
←
←
KX71-3 PP Remarks
Oil temp
26.5 ±1.0
50 ±5°C
270 ±10
Engine
3840 ±140
1500RPM
20.6 ±1.0
Engine RPM
210 ±10
Rated ~Max
2987 ±140