Swivel Brake Release Valve; Travel Two-Speed Selector Pressure - Kubota U20-3 Workshop Manual

U20-3, U25-3 WSM

[5] Swivel brake release valve

[6] Travel two-speed selector pressure

1) Measuring procedure
1. Stop the engine, disconnect the swivel brake
release hose of the selector valve using a
vacuum pump and set the pressure gauge.
2. With the engine running at maximum rpm,
unlock the lever (to bring it to operating
position) and measure the pressure.
3. Repeat the pressure measurement 3 times,
obtain the average and adopt it as measured
value.
* Measure the pressure at oil temperature of
50±5°C.
1) Measuring procedure
1. Stop the engine, disconnect the travel two-
speed selector hose of the selector valve using
the vacuum pump and set the pressure gauge.
2. With the engine running at maximum rpm, step
on the two-speed pedal and measure the
pressure.
3. Repeat the pressure measurement 3 times,
obtain the average and adopt it as measured
value.
* Measure the pressure at oil temperature of
50±5°C.
IV-S-35
Hydraulic system (Service section)