Kubota B1620 Workshop Manual

HYDRAULIC SYSTEM
B1220, B1620, B1820, WSM
8-M6
(EU)
3. HYDRAULIC PUMP
[1] MANUAL STEERING MODEL
The hydraulic pump is composed of the casing (1),
cover (3), side plate (4), and two spur gears (drive gear
(2) and driven gear (5)) that are in mesh.
Hydraulic pump is driven by the fuel camshaft.
Maximum displacement is as follows.
[B1220]
[B1620 and B1820]
9Y1210272HYM0007US0
[2] POWER STEERING MODEL
The hydraulic pump is composed of the casing (1),
cover (5), side plate (4), and two spur gears (drive gear
(3) and driven gear (2)) that are in mesh.
Hydraulic pump is driven by the fuel camshaft.
Maximum displacement is as follows.
[Hydraulic Pump (for Power Steering)]
[Hydraulic Pump (for 3P)]
9Y1210272HYM0008US0
Displacement Engine Speed Condition
8.4 L/min.
2.2 U.S.gals/min.
1.8 Imp.gals/min.
Approx. 3100 min
-1
(rpm)
At no load
Displacement Engine Speed Condition
14.1 L/min.
3.72 U.S.gals/min.
3.10 Imp.gals/min.
Approx. 2800 min
-1
(rpm)
At no load
(1) Casing
(2) Drive Gear
(3) Cover
(4) Side Plate
(5) Driven Gear
Displacement Engine Speed Condition
7.9 L/min.
2.1 U.S.gals/min.
1.7 Imp.gals/min.
Approx. 2800 min
-1
(rpm)
At no load
Displacement Engine Speed Condition
13.1 L/min.
3.46 U.S.gals/min.
2.88 Imp.gals/min.
Approx. 2800 min
-1
(rpm)
At no load
(1) Casing
(2) Driven Gear
(3) Drive Gear
(4) Side Plate
(5) Cover
A : Pump for 3 Point Hydraulic
System
B : Pump for Power Steering
KiSC issued 07, 2011 A

Kubota B1620 Specifications

General

Engine Type	Diesel
Cylinders	3
Fuel Type	Diesel
Hydraulic System Type	Open center
Drive	4WD
3-Point Hitch Category	Category I