SY50U Excavator OMM
Machine Operation
SANY
Operation and Maintenance Manual — 0120
4-47
TABLE OF
CONTENTS
INTRODUCTION
SAFETY
MACHINE
CONTROLS
MACHINE
OPERA
TION
MAINTENANCE
SPECIFICA
TIONS
OPTIONAL
EQUIPMENT
Mud and water accumulation on the undercarriage can affect normal operation of the machine. After operating the
machine in mud or water, make sure to perform the following actions after daily operation:
•
•
Park the machine on a firm, dry surface.
•
If possible, park the machine on boards, which can prevent the tracks from sinking into soft ground.
Normal operation can fail if the machine becomes stuck.
•
•
Fill the fuel tank.
Machine Storage in Cold Weather
1. Clean the machine.
2. Check the engine coolant and engine oil levels, and check for leaks. The machine is normally pre-filled to
withstand a maximum low temperature of -40°F (-40°C). Change the fuel, hydraulic oil, and gear oil with new
fluids that meet the air temperature requirements as necessary.
3. Check the hydraulic motors, hydraulic cylinders, pumps, circuits, and swivels for leaks. Check all cylinder
rods for scratches and corrosion. Apply grease to exposed cylinder rods.
4. Remove and charge the battery. When the battery is fully charged, store it indoors.
5. Install the battery and start and run the machine on a monthly basis.
6. Clean the battery terminals as necessary. Apply a coat of dielectric grease to the terminals. Check the specific
gravity of the electrolyte and add distilled water if necessary.
After Cold Season
•
Replace the fuel and engine oil with fuel and oil of the specified viscosity. See “SANY-Approved Lubricants”
on page
•
If permanent ethylene glycol engine coolant was not used, drain and flush the cooling system completely and
add new ethylene glycol engine coolant to the engine cooling system.
