Yanmar SA Series - Clean the Radiator Hoses and Clamps; Clean the Radiator Cooling Screen

14. PERIODIC SERVICE
14-6
SA221/324/424 Operation Manual
■ Clean the Radiator Hoses and Clamps
1. Park the tractor safely and securely.
• For details, see "7. Safe Practices for Parking the
Tractor" on page 1-7.
2. Shut off the engine.
3. Chock all the tires safely and securely.
4. Allow the engine to cool down for several
minutes.
5. Raise the hood.
6. Check the upper and the lower radiator hoses for
any damages and cracks.
7. Replace any damaged hoses.
8. Check for loosen hose clamps.
9. Replace as necessary.
10.Lower the hood.
(A) Upper radiator hose
(B) Hose clamps
(C) Lower radiator hose
■ Clean the Radiator Cooling Screen
1. Park the tractor safely and securely.
• For details, see "7. Safe Practices for Parking the
Tractor" on page 1-7.
2. Shut off the engine.
3. Chock all the tires safely and securely.
4. Allow the engine to cool down for several
minutes.
NOTE
●Visually check the hoses for damages and
cracks.
●Squeeze the hoses to check for evidences of
deterioration.
●The hoses must not be too hard, brittle, too soft or
swollen.
●Replace the damaged hose/s.
(B)
(A)
(B)
●ALWAYS stop the engine and remove the key
from the starter key switch before cleaning
the radiator cooling fins and the radiator
cooling screen.
Compressed air can explosively spray debris
and dirt over a wide area:
●Make sure there are no bystander/s near the
tractor.
●While using compressed air for cleaning,
always wear protective goggles.
●Reduce compressed air pressure to 30 psi
(210 kPa).
IMPORTANT
●Keep the radiator cooling screen clean:
• make sure adequate air inflow is present
• prevent the engine from overheating
(B)
(C)
(B)
! CAUTION
! WARNING
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