Maeda MC815C, Operation Manual, Page: 330 / 426

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13. Start the engine with the drain valve (8) open, and
ensure the engine runs at low idle. Conduct a cleaning
with running water until clean water flows out of the
radiator.
CAUTION
• The radiator is to retain a high water level during
cleaning with running water. Adjust the quantities of
water supplied and drained as necessary.
• Ensure that the water filling hose stays connected
to the radiator supply port properly during cleaning
with running water.
14. Once clean water has flowed out, stop the engine and
water supply and drain water. Close the drain valve (8)
upon completion of draining.
15. Supply coolant mixed of antifreeze and tap water (soft
water) to the radiator through the radiator supply port.
The radiator needs to be filled up to the supply port.
NOTES
See the above-mentioned table, “Mixing ratio between
water and antifreeze”, for the mixing ratio of antifreeze
and tap water (soft water).
16. Start the engine with the radiator cap (3) removed, and
ensure that the engine runs at low idle for 5 minutes.
Release air from the cooling system with the engine at
high idle for another 5 minutes.
17. Wait for approx. 3 minutes after stopping the engine.
Supply tap water (soft water) to the radiator through
the radiator supply port, up to the supply port. Close
the radiator cap (3).
18. Remove the reserve tank (1). Clean the inside of the
reserve tank with coolant drained from the tank.
19. Put the reserve tank (1) in the original place, supply
tap water (soft water) through the supply port to
“FULL”. Install the cap (2) properly.
20. See “OPERATION 1.10 ENGINE COVER” and
“OPERATION 1.9 RADIATOR GRILL” and install the
engine cover and radiator grill.