Hydraulic Cylinder - Kubota L2800 Workshop Manual

L2800, L3400, WSM

(3) Hydraulic Cylinder

Tractor Manuals Scotland - Please Do Not Copy
Tractor Manuals Scotland
Hydraulic Pump Assembly
1. Remove the pump cover mounting screw (7).
2. Remove the drive gear (6), driven gear (2) and side plate (3) from
the casing.
(When reassembling)
• Take care no to damage the gasket.
• Align the hole of the pump cover (4) and casing 2 (5).
• Install the side plate, noting its location and direction.
• Install the gears, noting its direction.
Tightening torque
(1) Casing 1
(2) Driven Gear
(3) Side Plate
(4) Pump Cover
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).
Lift-rod and Battery Negative Cable
1. Remove the lift-rods (1) and top link (2).
2. Disconnect the negative cable.
(1) Lift-rod
8-S15
HYDRAULIC SYSTEM
39.2 to 44.1 N·m
Pump cover mounting
4.0 to 4.5 kgf·m
screw
28.9 to 32.5 ft-lbs
(5) Casing 2
(6) Drive Gear
(7) Screw
2
, 711 psi) pressure, operate it for approx.
(2) Top Link
W1021912
-1
(rpm), and operate
-1
(rpm), and with the
2
, 427 psi) to
W1022427
W1018798
KiSC issued 08, 2007 A