Kubota M108S Workshop Manual page 258

M108S, WSM
Checking Regulator Valve Setting Pressure
1. Remove the plug (4) and set the adaptor D, threaded joint, cable
and pressure gauge.
2. Start the engine and set the engine at maximum speed.
3. Check the regulator valve setting pressure.
4. If the measurement is not within the factory specifications, loosen
the lock nut (3) and turn the screw (2) on the regulator valve
assembly (1) to adjust.
IMPORTANT
• Do not steer the steering wheel while checking the charge
relief valve setting pressure.
Regulator valve setting
Factory spec.
pressure
Condition
• Engine speed .......... Maximum
• Oil temperature ....... 45 to 55 °C
113 to 131 °F
(Reference)
• Turn the screw (2) to clockwise direction → pressure increase.
• Turn the screw (2) to counter clockwise direction → pressure
decrease.
(1) Regulator Valve Assembly
(2) Adjusting Screw
(3) Lock Nut
3-S12
TRANSMISSION
2.78 to 2.79 MPa
28.3 to 28.5 kgf/cm
403 to 405 psi
(4) Plug (for Regulator Valve Setting
Pressure)
(5) Spool (Regulator Valve)
W1039302
KiSC issued 06, 2007 A
2