Kubota B2301 Workshop Manual page 90

B2301, B2601, WSM
CAUTION
• When removing the radiator cap, wait at least ten minutes after the engine has stopped and cooled down.
Otherwise, hot water may gush out, scalding nearby people.
Radiator Cap Air Leakage
1. Set a radiator tester (1) and adaptor (2) on the radiator cap.
2. Apply the specified pressure 88 kPa (0.89 kgf/cm
measure the time for the pressure to fall to 59 kPa (0.61 kgf/cm
8.6 psi).
3. If the measurement is less than the factory specification,
replace the radiator cap.
Pressure falling time Factory specification
(1) Radiator Tester
Radiator Water Leakage
1. Pour a specified amount of water into the radiator.
2. Set a radiator tester (1) and an adaptor (2) and raise the water
pressure to the specified pressure.
3. Check the radiator for water leaks.
4. For water leak from the pinhole, repair with the radiator cement.
When water leak is excessive, replace the radiator.
Radiator water leakage
Factory specification
test pressure
(1) Radiator Tester
1-S16
ENGINE
9Y1211156ENS0012US0
2
, 12 psi), and
More than 10 seconds for
pressure fall from
88 to 59 kPa
(from 0.89 to 0.61 kgf/cm
from 12 to 8.6 psi)
(2) Adaptor
9Y1211156ENS0013US0
137 kPa
2
1.4 kgf/cm
20 psi
(2) Adaptor
9Y1211156ENS0014US0
KiSC issued 11, 2014 A
2
,
2
,