Disassembling Hydraulic Pump - Kubota WSM L3560 Workshop Manual

L3560, L4060, L4760, L5060, L5460, L6060, WSM

(2) Disassembling Hydraulic Pump

Hydraulic Pump Assembly
1. Remove the pump cover mounting screws (7).
2. Remove the drive gear (6), driven gear (2) and side plate (3)
from the casing.
(When reassembling)
• Be careful not to damage the gasket.
• Align the hole of the pump cover (5) and casing 2 (4).
• Install the side plate, noting its location and direction.
• Install the gears, noting its direction.
Pump cover mounting
Tightening torque
screw
(1) Casing 1
(2) Driven Gear
(3) Side Plate
(4) Casing 2
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
should 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 min
the hydraulic pump at no load for about 10 minutes.
3. Set the engine speed at 2000 to 2200 min
hydraulic pump applied with 2.94 MPa (30.0 kgf/cm
4.90 MPa (50.0 kgf/cm
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).
8-S16
HYDRAULIC SYSTEM
40 to 44 N·m
4.0 to 4.5 kgf·m
29 to 32 lbf·ft
(5) Pump Cover
(6) Drive Gear
(7) Screw
9Y1210824HYS0016US0
-1
(rpm), and operate
-1
(rpm), and with the
2
2
, 711 psi) pressure, operate it for
9Y1210824HYS0017US0
, 426 psi) to
KiSC issued 03, 2016 A