Fail Safe System (Bi-Speed Turn System) - Kubota WSM STV32 Workshop Manual

STV32 · STV36 · STV40, WSM

(3) Fail Safe System (Bi-speed Turn System)

3) Main Switch Key at PREHEAT Position
1. Set and hold the main switch key at the PREHEAT position.
2. Measure the resistance with an ohmmeter across the B
terminal and the G terminal, and measure the resistance
across the B terminal and the AC terminal.
3. If 0 is not indicated, these contacts of the main switch are
faulty.
B terminal - G terminal
Resistance
B terminal - AC terminal
4) Main Switch Key at START Position
1. Set and hold the main switch key at the START position.
2. Measure the resistance with an ohmmeter across the B
terminal and the G terminal, across the B terminal an the ST
terminal, and across the B terminal and the AC terminal.
3. If 0 is not indicated, these contacts of the main switch are
faulty.
B terminal - G terminal
Resistance B terminal - ST terminal
B terminal - AC terminal
Terminal
Key position
OFF
ON
PREHEAT
START
The fail safe system mentions to the operator for some trouble
occurred while operating the tractor.
When the fail safe system is operated, the bi-speed indicator
lamp (1) blinks and informs troubled parts. And the bi-speed turn
system does not work.
Blinking Mode
Slow
(Light up: 1.0 sec. / lights off: 0.2 sec.)
Slow (same above)
Quick
(Light up: 0.2 sec. / lights off: 0.2 sec.)
(1) Bi-speed Indicator Lamp
9-S9
ELECTRICAL SYSTEM
0
0
B AC G
Troubled parts
Wiring harness for traveling speed
sensor disconnected
Front wheel turning angle sensor
Bi-speed solenoid valve
0000008019E
ST
0000008020E
0000007898E
KiSC issued 04, 2006 A