SANY SY155U, Руководство по эксплуатации и обслуживанию, Страница: 134 / 192

5-24
MAINTENANCE
SY155U Excavator OMM
0003568
Figure 5-29
6. Slowly open the engine coolant expansion tank filler
cap (1) to release the cooling system pressure.
Remove the cap when all pressure has been
relieved.
0003651
Figure 5-30
7. Under the rear of the machine, remove the six
fasteners (2) and the radiator drain access plate (3).
NOTICE!
Dispose of the engine coolant in accordance with
all applicable environmental regulations. Failure
to do so could damage the environment.
NOTE: For the capacity of the engine cooling system, see
“Capacities” on page 5-11.
8. Place an appropriately sized container under the
radiator drain hose (4).
00033605
Figure 5-31
9. Open the radiator drain valve (5) and allow the
engine coolant to drain into the container.
10. Close the radiator drain valve after the engine
cooling system is empty.
11. Secure the radiator drain access plate with the six
fasteners. Tighten securely.
0003568
Figure 5-32
12. Add new engine coolant into the engine coolant
expansion tank filler neck (6) until the engine coolant
level is between the low and high marks on the sight
glass (7).
13. Start the engine and run it at low idle speed for about
5 minutes to allow the engine coolant level to drop.
14. Shut down the engine and allow to cool.
15. Check the engine coolant level.
16. Add new engine coolant to the engine coolant
expansion tank until it is between the low and high
marks on the sight glass (7).
17. Install the engine coolant expansion tank filler cap
and close the engine cover.
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