
© Mar. 2023 8AB16EJ Plus Maintenance Manual
MAINTENANCE SAFETY PRECAUTIONS
High Temperature and High Pressure
Hazards
• Some parts may have high sur-
face temperature when the ma-
chine is running or after the
machine has running for some
time, which may cause burns
through skin contact. Do not
touch any hot parts!
• It is forbidden to repair or tighten
hydraulic hoses or seals while the
machine is live or when the oil
system is under pressure.
• Before loosening or disassem-
bling the hydraulic parts (espe-
cially the counterbalance valve on
the cylinder), the hydraulic pres-
sure of all hydraulic lines should
be released and ensure that the
hydraulic oil is completely cooled
down.
• Disassemble the hydraulic com-
ponents slowly to prevent the hy-
draulic oil from splashing and
injuring people.
• It is forbidden to check the hy-
draulic leakage point by hand.
Use a piece of cardboard or stiff
paper to find leaks, and wear
gloves to protect your hands from
hydraulic fluid sprays.
• Do not operate the machine in
case of hydraulic oil or air leaks.
Oil or air leaked from the hydraul-
ic system may penetrate and burn
the skin.
• It is forbidden to plug leaking hy-
draulic oil by hand. If there is a
leak, the pressure of the hydraulic
system should be released first,
and the maintenance should be
carried out after the hydraulic oil
has cooled down.
• If you are injured by ignoring the
dangers of high temperature and
high pressure, seek immediate
medical attention. If treatment is
not carried out immediately, seri-
ous complications can result.
Welding and Polishing Operation
Hazards
• Welding, grinding and polishing
operations must follow the appro-
priate local safety operating
procedures.
• Before performing welding, grind-
ing and polishing operations, the
machine should be powered off,
and ensure that the wires or ca-
bles are connected correctly.
• Do not use the machine as a
ground wire during welding and
grinding operations.
• Always make sure that all power
tools are completely placed within
the perimeter of the platform. Do
not hang the wires of power tools
on the guardrail of the platform or
in any work area outside the plat-
form, or hang the power tools di-
rectly with wires.
Fire and Explosion Hazards
• Do not operate the machine,
charge the battery or refuel the
machine in places where poten-
tially flammable or explosive
gases may be present.
• Refueling and charging should be
carried out in a well-ventilated
place without flames, sparks, and
other hazards that may cause fire
or explosion.
• For machines powered by an en-
gine, do not refuel the machine
while the engine is running.
• Never spray ether into the engine
with a glow plug (if the machine is
equipped with an engine).
• Never touch the battery terminals
or cable clamps with tools that
can generate sparks.
• Only approved non-flammable
cleaning solutions should be used
on the machine.