Kubota u15-3 Workshop Manual page 143

3) Key SW is ON and lever lock SW is ON.
OFF
(7)
AC
Start
(4)
(6)
(1) Travel hi-low drive relay
(2) Travel hi-low solenoid
(3) Travel hi-low SW
(4) Negative function relay
(5) First self-hold relay
4) Push the travel hight-low SW ON. (Hold SW Button ON)
Then travel high-low drive relay turns on and travel high-low solenoid (2) becomes activated. And so
travel motor runs at high speed.
ON condition relays : (1) Travel hi-low drive relay
OFF
(7)
AC
Start
(4)
ON
(6)
(8)
ON
(6) Second self-hold relay
(7) Main Key SW
(8) Lever lock SW
(9) Self-hold cancel relay
(10) High speed lamp
(4)Negative function relay
(8)
ON
(10)
(1)
(2)
(5)
(9)
(10)
(1)
(2)
ON
(5)
(9)
II-123
WSM U15-3
(3)
ON
(3)