Kubota M9540, Workshop Manual

Page: 528 / 619

9-S27
M8540, M9540, WSM ELECTRICAL SYSTEM
PTO Switch
1) Connector Voltage
1. Remove the PTO switch connector (3).
2. Turn the main switch
ON position.
3. Measure the voltage across terminal 2 (a) and chassis.
4. If the voltage differs from battery voltage, the wiring harness,
fuse, or main switch is faulty.
2) PTO Switch Continuity
1. Remove the PTO switch connector (1).
2. Check the continuity with an ohmmeter across the terminal
1 (b)
and terminal 2 (d) , terminal 2 (d) and terminal 3 (c) .
3. If connection does not change, PTO switch is faulty.
W1021582
PTO Change Switch
1) PTO Change Switch Continuity
1. Check the continuity with an ohmmeter across the switch
terminals.
2. If it does not conduct or any value is indicated when the switch is
pushed, the switch is faulty.
3. If infinity is not indicated when the switch is released, the switch
is faulty.
W1025181
Voltage Terminal 2 – chassis Approx. battery voltage
Position Terminal 1 – terminal 2 Terminal 2 – terminal 3
OFF 0
Ω
Infinity
ON Infinity 0
Ω
(1) PTO Switch
(2) Harness Connector
(3) PTO Switch Connector (a) Terminal 2 (Harness)
(b) Terminal 1
(c) Terminal 3
(d) Terminal 2 (PTO Switch)
[A] ROPS Model
[B] CABIN Model
Resistance
(Across switch
terminals)
Reference
value
When switch is pushed ( P ) 0
Ω
When switch is released
(
R )
Infinity
(1) PTO Change Switch P : Pushed
R : Released
KiSC issued 09, 2008 A