COOLING SYSTEM TEST
Open the upper cover of engine hood and
remove the radiator cap.
Install the test cap and a small hose pincher
on overflow hose.
Using pressure/ vacuum pump, pressurize
system to 100 kPa.
Check all hoses, radiator and
cylinder(s)/base for coolant leaks or air
bubbles.
Inspection
Check general condition of hoses and
clamps tightness.
Check the leak indicator hole if there is oil
or coolant.
NOTE: Flowing coolant indicates a defective
rotary seal. Oil indicates a defective inner oil
seal. If either seal is leaking, both seals must
be replaced at same time. Refer to
WATERPUMP SHAFT ANDSEAL in this
section.
1.leak indicator hole
Another leak indicator hole is visible on the
PTO side. It indicate if the PTO gasket is in
good condition. If a liquid leaks by this hole,
the PTO gasket replacement is necessary.
! WARNING
To avoid potential burns, do not remove the
radiator cap or loosen the cooling drain plug if
the engine is hot.
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