Kubota WSM L3560, Workshop Manual

Page: 162 / 801

ENGINE
L3560, L4060, L4760, L5060, L5460, L6060, WSM
1-S15
Fan Belt Damage and Wear
1. Examine the fan belt for damage.
2. If the fan belt has a damage, replace it.
3. Examine if the fan belt is worn out and sunk in the pulley groove.
4. If it is, replace it.
9Y1210824ENS0008US0
Radiator Cap Air Leakage
CAUTION
• Remove the radiator cap only after you stop the engine for
a minimum of 10 minutes to decrease its temperature. If
not, hot water can gush out and cause injury.
1. Set a radiator tester and an adaptor on the radiator cap.
2. Apply the specified pressure 90 kPa (0.9 kgf/cm
2
, 10 psi).
3. Measure the time for the pressure to decrease to 60 kPa
(0.6 kgf/cm
2
, 9 psi).
4. If the measurement is less than the factory specification,
replace the radiator cap.
9Y1210824ENS0009US0
Radiator Water Leakage
1. Fill a specified quantity of water into the radiator.
2. Set a radiator tester and an adaptor on the radiator. Increase
the water pressure to the specified pressure with the radiator
tester and adaptor.
3. Examine the radiator for water leakage.
4. For water leakages from the pinhole, replace the radiator or
repair with the radiator cement. When water leak is too much,
replace the radiator.
9Y1210824ENS0010US0
(A) Good (B) Bad
Pressure decreasing
time
Factory specification
More than 10 seconds for
pressure decrease
from 90 to 60 kPa
(from 0.9 to 0.6 kgf/cm
2
,
from 10 to 9 psi)
Radiator water leakage
test
Factory specification
No leak at
137 kPa
1.4 kgf/cm
2
20 psi
KiSC issued 03, 2016 A