Hydraulic Pump (Three Point Hydraulic System) - Kubota L2800 Workshop Manual

L2800, L3400, WSM

(2) Hydraulic Pump (Three point Hydraulic System)

Tractor Manuals Scotland
Hydraulic Pump Running-in
After reassembly, perform break-in operation in the following
manner, and check the pump for abnormality before use. If the
pump temperature should rise noticeably during running-in, recheck
shoul be performed.
1. Install the hydraulic pump to the tractor, and mount the suction
pipe and delivery pipe securely.
2. Set the engine speed at 1300 to 1500 mm
the hydraulic pump at no load for about 10 minutes.
3. Set the engine speed at 2000 to 2200 mm
hydraulic pump applied with 2.94 MPa (30 kgf/cm
4.90 MPa (50 kgf/cm
15 minutes.
4. With the engine set to maximum speed, fully turn the steering
wheel to the left or right, then actuate the relief valve five times
for 25 seconds (one time 5 seconds).
Hydraulic Pump Assembly
1. Remove the side cover (1).
2. Remove the steering joint shaft (5).
3. Disconnect the suction hose (3).
4. Disconnect the return hose (8).
5. Remove the delivery pipe (6), (7).
6. Remove the hydraulic pump (2).
(When reassembling)
• Lift the universal joint so that there should be a clearance (A) of
more than 5 mm (0.19 in.) between the universal joint and
flywheel housing.
Then fit the support (4) in position.
• Apply grease to the O-ring and take care not to damage it.
Tightening torque
(1) Side Cover
(2) Hydraulic Pump
(3) Suction Hose
(4) Support
(5) Joint Shaft
Tractor Manuals Scotland - Please Do Not Copy
8-S14
HYDRAULIC SYSTEM
2
, 711 psi) pressure, operate it for approx.
49 to 69 N·m
Delivery pipe joint bolt 5.0 to 7.0 kgf·m
36.1 to 50.6 ft-lbs
23.5 to 27.5 N·m
Hydraulic pump assembly
2.4 to 2.8 kgf·m
mounting screw and nut
17.4 to 20.3 ft-lbs
(6) Delivery Pipe
(7) Delivery Pipe
(8) Return Hose
(A) Clearance
-1
(rpm), and operate
-1
(rpm), and with the
2
, 427 psi) to
W1017259
W1021423
KiSC issued 08, 2007 A