SANY SY95C, Operation And Maintenance Manual

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MAINTENANCE
5-5 SY95C Excavator OMM
Installation of Hydraulic Hoses
When disassembling parts sealed by O-rings or gaskets,
clean the surfaces before installing the new parts. Always
install new O-rings and gaskets.
Never kink or twist a hydraulic hose during removal or
installation. Hydraulic hoses that have been kinked or
twisted can be damaged internally, which can
considerably shorten the service life of the hose.
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 in the
open position 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
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 the
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 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 negative battery cable
could result in damage to the machine or cause
the machine to operate improperly.
Inspection and Maintenance for
Severe Operating Conditions
If the machine will be operating under adverse
conditions:
• Check and clean any 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 in wet locations, inspect
connectors for looseness. Tighten connectors to prevent
moisture contamination which could cause electrical
shorts.
After operating the machine, clean the machine and
inspect for missing or loose fasteners.
Near Ocean (Salt Air) Environments
Before operating the machine, inspect for any signs of
corrosion. Apply grease where rust is found.
After operating the machine, thoroughly wash away the
salt residue, apply grease where rust is found, and
perform maintenance carefully on the electric
components to prevent corrosion.
Dusty Environments
Clean the following components:
• Engine air filter: Clean the dust valve frequently.
Immediately service the air filter and air filter
housing if an air filter restriction warning is
displayed. See “Check and Replace the Air Filters”
on page 5-21.
• Radiator: Clean the radiator core frequently to
prevent blockage.
• Fuel system: Drain water/sediment frequently from
the fuel/water separator.
• Fresh-air and recirculation filters: Replace the filters
frequently.