Nanni N4.40, Workshop Manual

Page: 115 / 175

ENGINE
03-M-E3B, 03-M-DI-E3B, 03-M-E3BG, WSM
1-S45
Emergency Stop Switch
1. Disconnect the connector of the emergency stop switch.
2. Examine the condition of the harness.
3. If the harness is defective, replace it with a new one.
4. Measure the resistance between the terminals of the
emergency stop switch when the emergency stop switch turn on
or off.
5. If the measurements are in the factory specifications, the ECU
is defective. Then replace the ECU with a new one.
6. If the measurements are not in the factory specifications, the
emergency stop switch is defective. Then replace the
emergency stop switch with a new one.
M00000003ENS0060US1
Slow Down Switch
1. Disconnect the connector of the slow down switch.
2. Examine the condition of the harness.
3. If the harness is defective, replace it with a new one.
4. Measure the resistance between the terminals of the slow down
switch when the slow down switch turn on or off.
5. If the measurements are in the factory specifications, the ECU
is defective. Then replace the ECU with a new one.
6. If the measurements are not in the factory specifications, the
slow down switch is defective. Then replace the slow down
switch with a new one.
M00000003ENS0061US1
Battery
1. Measure the voltage of the battery (1).
2. If the measurement is less than the factory specification, charge
the battery or replace the battery with a new one.
3. If the measurement is in the factory specification, the ECU is
defective. Then replace the ECU with a new one.
M00000003ENS0062US1
Resistance
Factory
spec.
ON 0 Ω
OFF Infinity
(1) Emergency Stop Switch
(Switch Side)
(A) Single Pole, Single Throw
(B) Single Pole, Double Throw
Resistance
Factory
spec.
ON 0 Ω
OFF Infinity
(1) Slow Down Switch
(Switch Side)
(A) Single Pole, Single Throw
(B) Single Pole, Double Throw
Voltage
Factory
spec. + terminal -
− terminal
12 V
(1) Battery
KiSC issued 06, 2009 A