Kubota U20-3 Workshop Manual page 489

U20-3, U25-3 WSM
Trouble
5. The charge lamp does (1) Check the 60A fuse for blowouts.
not go off.
(2) Check the alternator B terminal or coupler for
(3) Check if the alternator is normal.
6. The oil lamp does not go (1) Check if the specified amount of oil is supplied.
off.
(2) Check the oil switch coupler for disconnection.
(3) Check if a voltage is applied to the oil switch coupler. Replace
(4) Measure the pressure of the engine oil.
7. The water temperature (1) Check the fuse (10A) for blowouts.
gauge does not function.
(2) Check the water temperature gauge coupler for
(3) Check the meter-side coupler for disconnection.
(4) Check if a voltage is applied to the water
(5) Check if the water temperature sensor is normal.
8. The fuel remaining (1) Check if fuel is supplied.
amount alarm lamp does
(2) Check if the fuel sensor is normal.
not go on.
9. The fuel gauge does not (1) Check the fuse (10A) for blowouts.
function.
(2) Check the fuel sensor coupler for disconnection.
(3) Check the meter-side coupler for disconnection.
(4) Check if a voltage is applied to the fuel sensor
(5) Check if the fuel sensor is normal.
Check item
disconnection.
disconnection.
temperature gauge coupler.
coupler.
V-S-12
Electrical system (Service section)
Remedy Remarks
Replace
Repair or replace
Repair or replace Fig.25-1, 25-2
Refill
Repair or replace
Fig.22, Fig.23
Repair Fig.24
Replace
Repair or replace
Repair or replace
Repair Fig.26, 27
Repair Fig.28
Replace Fig.32
Replace
Repair or replace Fig.29
Repair or replace
Replace Fig.30, Fig.31
Replace Fig.32