8-S14
L2800, L3400, WSM
HYDRAULIC SYSTEM
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
-1
(rpm), and operate
the hydraulic pump at no load for about 10 minutes.
3. Set the engine speed at 2000 to 2200 mm
-1
(rpm), and with the
hydraulic pump applied with 2.94 MPa (30 kgf/cm
2
, 427 psi) to
4.90 MPa (50 kgf/cm
2
, 711 psi) pressure, operate it for approx.
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).
W1017259
(2) Hydraulic Pump (Three point Hydraulic System)
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.
W1021423
Tightening torque
Delivery pipe joint bolt
49 to 69 N·m
5.0 to 7.0 kgf·m
36.1 to 50.6 ft-lbs
Hydraulic pump assembly
mounting screw and nut
23.5 to 27.5 N·m
2.4 to 2.8 kgf·m
17.4 to 20.3 ft-lbs
(1) Side Cover
(2) Hydraulic Pump
(3) Suction Hose
(4) Support
(5) Joint Shaft
(6) Delivery Pipe
(7) Delivery Pipe
(8) Return Hose
(A) Clearance
Tractor Manuals Scotland - Please Do Not Copy
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