Kubota u15-3 Workshop Manual page 104

WSM U15-3
2) Specifications
1. Max primary pressure: 6.9 MPa {70 kgf/cm
2. Max. back pressure: 0.3 MPa {3 kgf/cm
3. Rated flow: 15 L/min
4. Secondary pressure characteristics: Refer to the 'Control diagram' shown right
5. Operating torque: Refer to the 'Control diagram' shown right
6. Max allowable external torque: Refer to the 'Max. allowable external torque' shown right
7. Hydraulic oil: mineral hydraulic oil
8. Oil temp. range: -20 °C ~ +90 °C
9. Filter: A filter of 40 mesh and over should be applied at the entrance of port P for proventing the
spool sticking.
3) Operating specifications
1. Primary pressure: 3.9MPa {40 kgf/cm
4) Max. allowable external torque
Bending torque
Torsional torque
2
}
2
}
Rated
32.4 N·m {330 kgf·cm}
20.6 N·m {210 kgf·cm}
Single-operating torque Single-operating torque Single-operating torque
Push - rod stroke (mm)
Operating angle (deg.)
2
}
Intermittent
88.3 N·m {900 kgf·cm}
30.9 N·m {315 kgf·cm}
Secondary Secondary Secondary
pressure pressure pressure
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