Kubota WSM L3560, Workshop Manual

Page: 351 / 801

TRANSMISSION
L3560, L4060, L4760, L5060, L5460, L6060, WSM
3-S32
Checking Charge Relief Pressure
CAUTION
• When checking, park the machine on flat ground, apply the
parking brake.
NOTE
• Use a new transmission oil filter.
1. Remove the hex. socket head plug from charge pressure check
port (1).
2. Assemble adaptor
C
(07916-50371) and thread joint
(07916-50341) with the gasket between them.
3. Install the assembled adaptor
C
and thread joint to charge
pressure check port (1).
4. Install the cable, thread joint in relief valve set pressure tester
and low pressure gauge to threaded joint in order.
5. Place the range gear shift lever in neutral.
6. Run the engine at rated speed.
7. Release the HST pedal to set in neutral, and measure the
charge pressure.
8. If the measurement is not within the factory specifications,
check charge relief valve or adjust with adjusting shim.
NOTE
• Adjusting shim is located on between spring guide and
plug (7).
(Reference)
• Thickness of adjusting shim: 0.2 mm (0.0082 in.)
• Pressure charge per 0.2 mm (0.008 in.) of shim:
Approx. 50 kPa (0.51 kgf/cm
2
, 7.3 psi)
• Pressure change per 0.5 mm (0.02 in.) of shim:
Approx. 125 kPa (1.27 kgf/cm
2
, 18.1 psi)
NOTE
• Low pressure gauge is 5 MPa (50 kgf/cm
2
, 711 psi) full
scale.
9Y1210824TRS0191US0
Charge pressure
(Oil temperature at 50 to
60 °C (122 to 140 °F))
Factory specification
2.50 to 2.85 MPa
25.5 to 29.0 kgf/cm
2
363 to 413 psi
(1) Charge Pressure Check Port
(2) Poppet
(3) Spring
(4) Shim
(5) Holder
(6) O-ring
(7) Plug
F: Forward Side
R: Reverse Side
KiSC issued 03, 2016 A