Figure 6. Radiator Bottle and Radiator Bottle Fill Port
4. Replace engine coolant.
Allow the engine to cool for approximately 30 minutes before changing
coolant. The engine is hot and presents a burn hazard. Coming in contact
with hot engine coolant may cause burns and severe injury.
a. Remove the radiator cap (figure 7, item 1).
b. Loosen and remove the drain plug hose clamp (figure 8, item 1) and drain plug (figure
8, item 2) on the radiator and drain the coolant into an approved container.
Dispose as regulated waste in accordance with unit SOP and local regulations.
d. Install the drain plug (figure 8, item 2) and hose clamp (figure 8, item 1).
e. Using a 50/50 ethylene glycol base antifreeze/water mix fill the radiator with coolant until
the level reaches the filler port (figure 7, item 2).
Fill gradually to prevent air entry.
g. Install radiator cap (figure 7, item 1).
h. Operate the engine for five minutes at a low idle speed, allowing the air contained in the
coolant system to bleed. The coolant level will drop.