SY50U Excavator OMM
Machine Operation
SANY
Operation and Maintenance Manual — 0120
4-21
TABLE OF
CONTENTS
INTRODUCTION
SAFETY
MACHINE
CONTROLS
MACHINE
OPERA
TION
MAINTENANCE
SPECIFICA
TIONS
OPTIONAL
EQUIPMENT
New Machine Break-In
NOTE:
The machine has been thoroughly tested and adjusted before shipment. However, initial operation of
the machine under severe conditions can adversely affect the performance of the new machine or
shorten the machine life. SANY recommends a break-in period of 100 service hours for a new
machine. Properly breaking-in a new machine is crucial for long service life by allowing time for
internal engine parts to break-in. Make sure the machine is in normal working condition before
proceeding with the break-in.
1. Start and run the engine at low idle until it reaches proper operating temperatures. Do not move the controls.
2. Avoid operating the machine under heavy loads or at high speeds during the break-in period. Operate as much
as possible in the 1/2 to 3/4 throttle or load range. Do not operate this machine with a full load during the
break-in period.
3. Avoid sudden starts, movements, or stops.
4. Monitor the instruments frequently, especially the engine oil pressure and coolant temperatures. Shut down the
machine at the first indication of an abnormal reading.
5. Avoid running the engine at low idle for long periods of time.
6. Manage engine power to allow acceleration to governed speed when conditions require more power. Do not
over-rev the engine.
7. Always allow the engine to cool before shutting it down.
8. After shutting down the engine, check the fluid levels.
