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