SA221/324/424 Operation Manual
(A) Radiator drain hose
(B) Drain hose clip
2. Flush the Cooling System
1. Fill the cooling system with water and common
flushing/cooling liquid.
• Follow the manufacturer's instructions.
2. Install and tighten the radiator cap.
3. Start and run the engine until the operating
temperature is reached.
4. Shut off the engine.
5. Place a drain pan underneath the radiator drain
hose.
(A) Radiator drain hose
(B) Drain hose clip
6. Pull out the drain hose from the radiator outward.
7. Pull out the drain hose clip and the plug from the
drain hose.
8. Immediately drain the flushing/cooling liquid.
• The preceding practice prevents rust and dirt
from settling down.
• Make sure to avoid touching and getting in
contact with hot engine components and hot
internal fluids.
9. Install the plug and the drain hose clip to the
radiator drain hose.
10.Put the end of drain hose under the radiator.
3. Fill the Cooling System
1. Allow the radiator to cool down.
Avoid injury!
●
Touching hot surfaces can burn skin.
●
If the engine has been running for some time,
the engine components are hot including all
internal fluids.
●
Before performing maintenance or working
near the engine and engine parts:
• allow the engine to cool down
• always wear protective goggles and
protective clothing
(A)
(B)
! WARNING
IMPORTANT
●
Use correct coolant mixture to prevent damage to
the cooling system.
●
Avoid operating the engine with plain water in the
cooling system.
●
Always use a pre-diluted coolant, with an
antifreeze water mixture ratio that suits the local
climate.
●
Allow the engine to cool down first before pouring
the coolant.
NOTE
When adding coolant to the cooling system:
●
Use of High Quality Permanent Type Antifreeze
(Ethylene Glycol with corrosion and rust inhibitor
chemicals) is recommended.
●
For the correct mixture ratio, read the
manufacturer's direction on the coolant container.
(A)
(B)
SA221_324_424_OperatorsManual.book 30 ページ ２０１８年６月４日 月曜日 午後５時１９分
