MAINTENANCE
5-23
SY95C Excavator OMM
Engine Cooling System
Change the Engine Coolant
WARNING
• Engine coolant is toxic. Avoid inhaling or
ingesting engine coolant. If eyes or skin are
contaminated by coolant, wash the affected area
with plenty of water and seek medical treatment
immediately.
• Do not remove the radiator cap while the engine
is hot. Engine coolant may be under pressure
when the engine is hot. Avoid contact with hot
engine coolant. Allow the engine to cool before
removing the radiator cap.
Failure to follow these warnings could result in
death or serious injury.
1. Prepare the machine for service. See “Maintenance
Safety” on page 2-5 and open the engine hood.
0003990
Figure 5-29
2. Slowly loosen and remove the radiator cap (1).
0003991
Figure 5-30
NOTE:
For engine cooling system capacity see“Fluid
3. Follow the drain hose (3) from the drain valve (2) to
where it exits the bottom of the machine. Place an
appropriate container under the drain hose. Open the
drain valve and allow the engine coolant to drain.
4. Close the drain valve. Add clean water to fill the
radiator. Start the engine and run it at low speed until
the temperature reaches a normal operating
temperature. Run the engine for an additional 10
minutes.
5. Stop the engine. Allow the engine to cool and drain
the water into an appropriately sized container.
0003988
Figure 5-31
NOTICE!
Dispose of the engine coolant in accordance with
all applicable environmental regulations. Failure
to do so could result in damage to the
environment.
6. Remove overflow tank cap (4), loosen fastener (6),
remove overflow tank (5), and pour the contents into
a container.
7. Install overflow tank and cap. Tighten fastener.
8. Close the drain valve. Add new engine coolant until
the level reaches the radiator filler opening. With the
radiator cap removed, run the engine at low idle for 5
minutes and then at high speed for 5 minutes to
bleed air from the cooling system.
9. Top off the radiator and fill the overflow tank until the
engine coolant is between the FULL and LOW
marks.
1
3
2
6
4
5
Summary of Contents for SY95C
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