SANY SY500H, Operation And Maintenance Manual

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5-4
MAINTENANCE
SY500H Excavator OMM
Maintenance Information
Do not perform any maintenance and/or repairs unless
the procedures are covered in this manual. Always follow
all safety precautions
Checks Before Maintenance
Before proceeding with any inspection or maintenance
procedures, read and understand the safety section of
this manual, including the lockout/tagout procedure.
• Perform only maintenance that is covered in this
manual’s maintenance section for this machine.
• Avoid working on the machine while the engine is
running unless required to do so in the procedure. If
the engine must remain running during a procedure,
always have a person in the cab who is visible at all
times and can operate the machine correctly.
• Contact a SANY dealer if you are unable to perform
the procedures listed in this manual or if additional
procedures are required.
• Always use the proper tools when performing any
maintenance procedures.
Checks After Maintenance or Repairs
Always perform the following after completing any
maintenance to the machine.
• Make sure all of the steps listed in this book have
been followed.
• If necessary, have a coworker inspect your work for
correct and proper completion.
• Complete the Maintenance Log for this machine and
return it to its storage location.
• Follow the lockout/tagout procedure for returning the
unit to service.
• Check for leaks in the system that has been
serviced.
• Make sure there are no abnormal sounds coming
from the engine or hydraulic system.
• Check for any loose or abnormal movement in the
system that has been serviced.
• Check for any overheating in the system that has
been serviced.
After maintenance or machine repair, always take time to
inventory your tools, parts used, and hardware to be sure
none of these items were left on or inside the machine.
Hour Meter Reading
Record the hour meter reading on a daily basis. Compare
meter readings with the required maintenance intervals
listed in this manual.
Genuine SANY Replacement Parts
Use genuine SANY replacement parts when repairing or
replacing a part on the machine. Failure to do so may
result in premature system or part failure.
SANY-Approved Lubricants
Always use SANY-approved lubricants and coolants.
Never mix different lubricant brands or viscosities. The
use of unapproved lubricants and coolants or mixing
different lubricant brands or viscosities may result in
shortened service life or system failure of the machine.
Weld, Drill, Cut, or Grind on the
Machine
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. Remove the
negative battery cable from the negative (-) post
of the battery.
The welding ground cable must be connected no
more than 3.3 ft (1 m) from 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 battery chassis ground
could damage the machine or personal property,
or cause the machine to operate improperly.
Clean Parts of the Machine
Never clean the machine with caustic chemicals or steam
cleaners. Only use mild soaps and a pressure washer.
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 any machine
components.
NOTICE!
Failure to protect the electrical system when
cleaning the machine may damage the machine or
cause it to operate improperly.