Kubota u15-3 Workshop Manual page 144

WSM U15-3
5) Hand off from the high-low SW button
As first self-hold relay (5) is B-type relay, buttery current flows through this normal close contact terminal
and activates travel high-low drive relay (1). In this was travel motor keeps running at high speed.
ON condition relay :
OFF
(7)
AC
Start
(4)
(6)
ON
6) Push the travel high-low SW ON again (Hold the SW button ON)
When the travel high-low SW is pushed ON, battery current flows through the coil of travel high-low drive
relay (1) and turn it ON.
Then the travel high-low solenoid is activated and runs the travel motor at high speed. On this stage, all
5 relay turn ON positions.
OFF
(7)
AC
Start
(4)
ON
(6)
ON
(1) Travel hi-low drive relay
(6) Second self-hold relay
(9) Self-hold cancel relay
(8)
ON
(8)
ON
(10)
ON
(1)
(2)
ON
(5)
ON
(9)
(10)
ON
(1)
(2)
ON
(5)
ON
ON
(9)
II-124
(3)
OFF
ON
(3)