Kubota L4400 Workshop Manual page 321

L4400 , WSM
THREE POINT SYSTEM HYDRAULIC PUMP
Hydraulic Pump
Condition
• Engine speed :
Approx. 2600 min -1 (rpm)
• Rated Pressure :
17.1 to 18.1 MPa
2
175 to 185 kgf/cm
2489 to 2631 psi
• Oil Temperature : 40 to 60 °C
104 to 140 °F
Housing Bore
Bushing to Gear Shaft
Gear Shaft
Bushing
Side Plate
RELIEF VALVE (THREE POINT SYSTEM)
Relief Valve
Condition
• Engine Speed : Maximum
• Oil Temperature : 40 to 60 °C
104 to 140 °F
• Location of Measurment :
Front Hydraulic Block
CYLINDER SAFETY VALVE
Cylinder Safety Valve
Tractor Manuals Scotland
Item
Delivery at No
Pressure
Delivery at Rated
Pressure
Depth of Scratch
Clearance
O.D.
I.D.
Thickness
Setting Pressure
Operating
Pressure
Tractor Manuals Scotland - Please Do Not Copy
8-S4
HYDRAULIC SYSTEM
Factory Specification
Above
29.4 L/min.
7.77 U.S.gals./min.
6.47 Imp.gals./min.
Above
28.8 L/min.
7.61 U.S.gals./min.
6.34 Imp.gals./min.
–
0.020 to 0.081 mm
0.0008 to 0.0032 in.
14.970 to 14.980 mm
0.5894 to 0.5898 in.
15.000 to 15.051 mm
0.5906 to 0.5926 in.
2.48 to 2.50 mm
0.0976 to 0.0984 in.
17.1 to 18.1 MPa
2
175 to 185 kgf/cm
2489 to 2631 psi
19.6 to 22.6 MPa
2
200 to 230 kgf/cm
2845 to 3277 psi
Allowable Limit
–
25.8 L/min.
6.82 U.S.gals./min.
5.68 Imp.gals./min.
0.09 mm
0.0035 in.
0.15 mm
0.0059 in.
–
–
2.40 mm
0.0945 in.
W1012055
–
W1012295
–
W1029624
KiSC issued 07, 2007 A