SANY SY500H, Operation And Maintenance Manual

Page: 27 / 196

SAFETY
2-5 SY500H Excavator OMM
The engine coolant and oil in the machine may be hot
even after the engine is stopped. Wait for the engine
coolant and oil systems to cool before working on them.
When checking the machine with the engine running
(e.g., measuring oil pressure, rpm, or temperature), take
extreme care to avoid rotating or moving parts.
Turn the battery disconnect switch OFF unless electrical
power is required for the procedure.
NOTE: The electrical circuit remains active to a few
components even when the battery disconnect is
in the OFF position.
When removing hoses or lines, close all openings using
caps and plugs. If any fuel or oil fluids leak, clean up
immediately.
When installing high-pressure hoses, make sure they are
not twisted. Damaged hoses are dangerous and should
be replaced. Take extreme caution when installing hoses
for high-pressure circuits. Make sure fittings are correctly
installed and tightened.
When assembling or installing parts, always tighten them
to the specified torque. When installing protective parts
(such as guards) or parts that vibrate or rotate at high
speed, make sure they are installed correctly.
Lockout/Tagout Procedure
Always perform the lockout/tagout procedure before
servicing the machine.
Clean the Machine
Always use hot water and mild, nonflammable,
grease-cutting soaps or cleaning agents to clean the
machine. Never use flammable or caustic cleaning
agents.
Never use high-pressure steam cleaners to clean the
machine.
Always lubricate the machine thoroughly after cleaning to
remove any water or soap residue.
Keep the cab, windows, mirrors, and lights clean.
Fluid Systems
Adding Fluids to the Machine
When adding fluids to the machine, be aware that fluid
systems may be under pressure and hot.
Refueling
When adding fuel, shut down the machine before
removing the fuel tank cap.
Fuel spills present a hazard if not cleaned up
immediately.
Refuel only in a well-ventilated area. Never smoke or
allow open flames nearby while refueling the machine.
Do not top off the fuel tank.
High-Pressure Fluid Lines
WARNING
• Never perform inspections or replace items while
any system is under pressure.
• Never use your hands to check or feel for leaks.
Always wear personal protective equipment
(PPE), and use a piece of wood or cardboard to
check for leaks.
• If high-pressure fluids penetrate skin, seek
medical attention immediately.
Failure to follow these warnings can result in
death or serious injury.
Check for cracks in the lines or hoses and for swelling in
the hoses.
NOTE: If there is any leakage from a line or hose, the
surrounding area may be wet.
Replace lines and hoses immediately if leaks, swelling,
or cracking are found or if failure occurs.
Accumulator
This machine is equipped with an accumulator charged
with high-pressure nitrogen gas. Do not disassemble the
accumulator.
Never expose the accumulator to temperatures over
140°F (60°C) or to open flames.
Never weld on the accumulator.
Never strike the accumulator.
If the accumulator needs service, contact a SANY dealer.
Electrical System
Always clean the electrical system using industry-
approved electrical cleaners.
Never use caustic soaps, high-pressure water, or steam
cleaners to clean the electrical system. These could
damage the system or cause intermittent system failures.
Battery Safety
When working with batteries, always work in a
well-ventilated area. Batteries present a hazard,
especially when they have been in use for a long period
of time. The following are some basic precautions for
working around batteries:
• Always wear personal protective equipment (PPE).
• Battery gases are extremely explosive. Smoking,
sparks, or open flames could cause an explosion.
When opening a battery compartment, always allow
ample time for battery gases to escape.
• If the battery is corroded, clean it with a mixture of
warm water and baking soda.