Maintenance
SY135C Excavator OMM
5-46
Operation and Maintenance Manual — 0120
SANY
Cooling System
Change the Engine Coolant
1. Swing the upper structure to allow access to the drain
valve beneath the radiator.
2. Prepare the machine for service. See “Maintenance
3. Shut down the engine and allow the engine to cool.
4. Open the engine compartment cover. See “Engine
Compartment Cover” on page 3-8.
5. Slowly open the expansion tank filler cap (1) to release
the cooling system pressure. Remove the cap when all
pressure has been relieved.
6. Unscrew four fasteners (2) and remove the lower
radiator access panel (3).
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.
Fig. 5-101
0004140
1
Fig. 5-102
0004144
2
2
3