SANY SY155U, Руководство по эксплуатации и обслуживанию, Страница: 115 / 192

MAINTENANCE
5-5
SY155U 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. Read and understand the Safety
section of this manual before proceeding with any
inspection or maintenance procedures. See
“Maintenance Safety” on page 2-5.
Checks Before Maintenance or
Repairs
Review the Maintenance Log and follow these points:
• 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 can correctly
operate the machine and who is in clear contact with
you at all times.
• 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
With the engine off:
• Verify all 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.
• Check for leaks in the system you have maintained.
• Verify there are no abnormal sounds coming from
the engine or hydraulic system.
• Check for any loose or abnormal movement in the
system you have maintained.
• Check for any overheating in the system you have
maintained.
After performing maintenance or repairs to the machine,
always take time to inventory your tools, parts used, and
fasteners to make sure none of these items were left on
or inside the machine. Return the machine to its proper
location.
Hour Meter Reading
Record the hour meter reading (on the monitor home
screen) on a daily basis. Confirm hour meter readings
with the required maintenance intervals listed in this
manual. See “Monitor” on page 3-24.
Genuine SANY Parts
Use genuine SANY replacement parts when repairing or
replacing machine components. Failure to do so may
result in premature system or part failure.
SANY-Approved Lubricants
Always use SANY-approved lubricants and engine
coolants. Never mix different lubricant brands or
viscosities. The use of unapproved lubricants and engine
coolants, or mixing different lubricant brands or
viscosities, may result in shortened service life or system
failure.
Oil and Filter Inspection
NOTICE!
Failure to inspect hydraulic oil for contamination
may damage the hydraulic system or cause the
machine to operate improperly.
Always inspect the drained oil and used filter for metal
particles and impurities. If any foreign material is found,
send a sample of the drained oil for testing. See “Collect
Oil Samples” on page 5-56.
Fuel Strainer
The fuel strainer should always be installed when fueling
the machine. The fuel strainer prevents larger dirt and
other contaminates from entering the fuel system. The
fuel strainer does not filter out very small or non-solid
impurities.
Preventing Contamination
Clean dirt, dust, and debris from the hydraulic tank filler
cap or cover before opening. Make sure objects do not
fall into the tank and contaminate fluids during servicing.
If any object falls into any tank, remove it immediately.
Failure to do so could result in component malfunction,
damage to the machine, or improper machine operation.
Securing Access Covers and
Compartment Doors
When servicing the machine with any access cover or
compartment door open, use the lock latch or bar to
secure the cover or compartment door in the open
position. Covers and doors that are not locked open can
shut unexpectedly and cause injury.