SANY SY500H, Operation And Maintenance Manual

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5-20
MAINTENANCE
SY500H Excavator OMM
5. If coolant is required, slowly open the expansion tank
filler cap (2) to release the cooling system pressure.
6. Remove the cap when all pressure has been
relieved.
7. Add new coolant directly into the expansion tank filler
opening until the coolant is visible in the sight glass
on the side of the expansion tank.
8. Start and run the engine at idle speed for a minimum
of 5 minutes and turn on the cab heater to allow the
coolant level to stabilize.
9. Turn engine off.
10. Check the coolant level at the sight glass.
11. If necessary, add more coolant until the coolant is
visible in the sight glass.
12. Install the expansion tank filler cap (3).
13. Close the engine access door. See “Engine Access
Door” on page 4-10.
14. Close the expansion tank access door. See
“Expansion Tank Access Door” on page 4-10.
Check the Radiator, Charge Air Cooler, and
Air Conditioner Condenser Fins
1. Prepare the machine for service. See “Maintenance
Safety” on page 2-4.
2. Open the engine access door. See “Engine Access
Door” on page 4-10.
3. Open the left rear access door. See “Left Rear
Access Door” on page 4-8.
0004780
Figure 5-9
4. Remove the fasteners (2) that secure the protection
screens (1) mounted in front of the radiator.
5. Remove the protection screens.
6. Clean the protection screens using compressed air.
NOTICE!
Use low-pressure compressed air and point the
nozzle away from the radiator fins to avoid
damaging the fins or causing other engine
damage.
7. Clean the charge air cooler, radiator, and air
conditioner condenser fins using compressed air.
0004777
Figure 5-10
8. Remove the covers below the radiators (3).
9. Clean out any debris that has accumulated on the
covers.
10. Install the covers below the radiators.
11. Reinstall the protection screens.
12. Close the engine access door. See “Engine Access
Door” on page 4-10.
13. Close the left rear access door. See “Left Rear
Access Door” on page 4-8.
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