HYDRAULIC SYSTEM
B2301, B2601, WSM
7-S2
2. SERVICING SPECIFICATIONS
9Y1211156HYS0002US0
Item Factory Specification Allowable Limit
Hydraulic Pump (For 3-Point Hitch)
Condition
• Engine rated speed: 2800 min
-1
(rpm)
• Rated pressure
13.0 to 13.8 MPa
130 to 140 kgf/cm
2
1890 to 2000 psi
• Oil temperature: 50 °C (122 °F)
Delivery
(At No Pressure)
Delivery
(At Rated
Pressure)
Above
20.1 L/min.
5.55 U.S.gals/min.
4.62 Imp.gals/min.
Above
19.7 L/min.
5.20 U.S.gals/min.
4.33 Imp.gals/min.
–
Above
16.5 L/min.
4.36 U.S.gals/min.
3.63 Imp.gals/min.
Hydraulic Pump (For Power Steering, PTO
Clutch and HST)
Condition
• Engine rated speed: 2800 min
-1
(rpm)
• Rated pressure
11.5 to 12.5 MPa
118 to 127 kgf/cm
2
1670 to 1810 psi
• Oil temperature: 50 °C (122 °F)
Delivery
(At No Pressure)
Delivery
(At Rated
Pressure)
Above
15.8 L/min.
4.17 U.S.gals/min.
3.48 Imp.gals/min.
Above
15.4 L/min.
4.07 U.S.gals/min.
3.39 Imp.gals/min.
–
Above
12.9 L/min.
3.41 U.S.gals/min.
2.84 Imp.gals/min.
Relief Valve
Condition
• Engine rated speed: 2800 min
-1
(rpm)
• Oil temperature: 50 °C (122 °F)
Setting Pressure 13.0 to 13.8 MPa
133 to 140 kgf/cm
2
1890 to 2000 psi
–
Lift Arm Free Play 5 to 15 mm
0.20 to 0.59 in.
–
Tip of Gear Tooth to Casing Clearance – 0.15 mm
0.0059 in.
Bushing to Shaft
•Shaft
• Bushing
Clearance
O.D.
I.D.
0.020 to 0.091 mm
0.0008 to 0.0036 in.
14.970 to 14.980 mm
0.5894 to 0.5898 in.
15.000 to 15.061 mm
0.5906 to 0.5930 in.
0.12 mm
0.0047 in.
–
–
Side Plate Thickness 2.48 to 2.50 mm
0.0976 to 0.0984 in.
2.40 mm
0.0945 in.
Hydraulic Cylinder I.D. 75.05 to 75.10 mm
2.955 to 2.956 in.
75.15 mm
2.959 in.
Hydraulic Arm Shaft to Bushing
• Hydraulic Arm Shaft (Right)
• Hydraulic Arm Shaft (Left)
• Bushing (Right)
• Bushing (Left)
Clearance
O.D.
O.D.
I.D.
I.D.
0.020 to 0.110 mm
0.0008 to 0.0043 in.
37.925 to 37.950 mm
1.4931 to 1.4941 in.
34.925 to 34.950 mm
1.3750 to 1.3759 in.
37.970 to 38.035 mm
1.4949 to 1.4974 in.
34.970 to 35.035 mm
1.3768 to 1.3793 in.
0.30 mm
0.0118 in.
–
–
–
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