24. SERVICE PROCEDURE
24.9 EVERY 2000 HOURS SERVICE
24.9.1 DRAIN, FLUSH AND REFILL COOLING SYSTEM
A
WARNING
Soon after the engine has been stopped, the coolant is hot and can
cause personal injury. Allow the engine cool before draining the
coolant.
Never remove the radiator cap when the engine is at operating
temperature. At operating temperature, the coolant is under pressure.
Steam blowing up from the radiator could cause personal injury.
Allow the engine to cool until the radiator filler cap is cool enough to
touch with your hands. Remove the filler cap slowly to relieve
pressure.
Never be under the machine with the engine running. To avoid
serious injury, always stop the engine before being under the
machine to open the drain valve.
When removing drain plug, avoid pouring coolant on yourself.
Antifreeze is flammable, so keep it away from any flame.
Flushing agents, neutralizing agents, and anticorrosive agents are
strong acids or alkalize, so be careful not to get them on your skin.
If you should get any of these on your skin, wash off immediately
with ample water.
After using the agent, do not use the empty packet for keeping food,
etc.
1.
2.
3.
4.
24.9.1.1 DRAINING THE SYSTEM
Turn the radiator cap slowly to remove it.
Remove the crankcase coolant drain plug located on the bottom of the
coolant inlet.
Open the radiator drain valve. Allow the system to completely drain into a
suitable container. Do not let drain outlets plug up during draining.
Close the radiator drain valve. Install the crankcase drain plug.
24.9.1.2 FLUSHING THE SYSTEM
1. Be sure the radiator drain valve and crankcase drain plug are closed and
tightened.
2. Fill the system with clean water and add a flushing compound that is
compatible with aluminum. Flush the system in accordance with the
instructions furnished with compound.
3. After flushing, rinsing and completely draining the system, refill with clean
coolant, see the following.
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