HYDRAULIC SYSTEM
B2050, B2350, B2650, B3150, WSM
8-S6
4. CHECKING, DISASSEMBLING AND SERVICING
[1] CHECKING AND ADJUSTING
(1) Hydraulic Pump (For 3-Point Hitch Hydraulic System)
Test Preparation (For 3-Point Hitch)
• When using a flowmeter other than KUBOTA specified
flowmeter (Code No. 07916-52792), be sure to use the
instructions with that flowmeter.
• In this hook-up, there is no relief valve. Therefore while
testing, do not close the flowmeter loading valve
completely.
1. Disconnect the delivery pipe (1).
2. Install the flowmeter adaptor to the hydraulic pump body.
3. Connect the hydraulic test hose (Code No. 07916-52651) to the
flowmeter (Code No. 07916-52791) inlet port and the adaptor
61 on the hydraulic pump body.
4. Connect the another hydraulic test hose to flowmeter outlet port
and transmission oil filling port, firmly.
5. Open the flowmeter loading valve completely. (Turn
counterclockwise)
6. Start the engine and set the engine speed at 2500 min
-1
(rpm).
7. Slowly close the loading valve to generate the pressure
approximately 13.7 MPa (140 kgf/cm
2
, 1991 psi).
8. Hold this condition until the oil temperature reaches
approximately 50 °C (122 °F).
9Y1210982HYS0004US0
(1) Delivery Pipe (to 3-Point Hitch)
(2) Delivery Hose (to Power Steering)
(3) Hydraulic Pump
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