SY50U Excavator OMM
Maintenance
SANY
Operation and Maintenance Manual — 0120
5-7
TABLE OF
CONTENTS
INTRODUCTION
SAFETY
MACHINE
CONTROLS
MACHINE
OPERA
TION
MAINTENANCE
SPECIFICA
TIONS
OPTIONAL
EQUIPMENT
the cover or compartment door in the open position. Covers and doors that are not locked open can shut
unexpectedly and cause injury.
Cleaning the Machine
Never clean the machine with caustic chemicals or steam cleaners. Instead, use mild soaps and a pressure washer to
clean the machine. Always protect electrical parts when cleaning the machine. Never flood or pressure-wash the
inside of the cab. Use only nonflammable cleaning solvents. Never use flammable liquids to clean parts or systems.
Weld, Drill, Cut, or Grind on the Machine
Inspection and Maintenance in Adverse Environments
If the machine will be operating under adverse conditions:
•
Check and clean all electrical components to prevent any accumulated corrosion.
•
Check and clean any areas where extreme heat is present, such as the exhaust system, manifold, and
turbocharger.
For heavy-load operation, add grease to the pins of the work equipment prior to each operation. Cycle the operation
of all working parts several times before filling with additional grease.
Mud, Rain, or Snow Conditions
Before operating the machine, inspect each connector for looseness.
After operating the machine, clean the machine and inspect for missing or loose fasteners. Add oil and lubricating
grease as needed.
NOTICE!
Contact a SANY dealer before beginning any welding repairs. Any welding repairs on the
machine must be performed by personnel who are qualified and certified to perform repairs
that require welding. Owners are responsible for the structural integrity of any completed
repair.
•
After turning off the key switch, wait 1 minute before disconnecting the battery. Disconnect
negative battery cable from the negative (-) post of the battery and all electrical control
modules prior to welding.
•
The welding ground cable must be connected within 3.3 ft. (1 m) of the welding area. The
welding cable must be connected directly to the part being welded. Do not ground through
bearings, hydraulic cylinder pins, or work equipment pins.
Failure to disconnect the negative battery cable could result in damage to the machine or
cause the machine to operate improperly.
