SY50U Excavator OMM
Maintenance
SANY
Operation and Maintenance Manual — 0120
5-33
TABLE OF
CONTENTS
INTRODUCTION
SAFETY
MACHINE
CONTROLS
MACHINE
OPERA
TION
MAINTENANCE
SPECIFICA
TIONS
OPTIONAL
EQUIPMENT
Change the Engine Coolant
1. Prepare the machine for service. See “Maintenance
2. Slowly loosen and remove the radiator cap (1).
NOTE:
See “Fluid Capacities” on page
for
cooling system capacity.
3. Trace 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 194ºF (90ºC). 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.
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 is 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.
NOTICE!
Dispose of the engine coolant in accordance with all applicable environmental regulations.
Failure to do so could result in damage to the environment.
Fig. 5-23
0003094
1
Fig. 5-24
0003082
2
3
