LiuGong CLG835H, Service Manual

Page: 278 / 764

4-6
Basic Information
January 24, 2017
Safety precautions for hydraulic system CLG835H
The accumulator shall be checked before charge
of nitrogen. It is prohibited to charge the
accumulator with gas if the accumulator does not
have a nameplate, or the words on the
nameplate are missed so that its type can not be
identified, or if the steel seal marks are
incomplete or cannot be read clearly, or if there is
defect with the housing and therefore safe use
cannot be ensured.
The accumulator can only be filled with nitrogen
other than oxygen, compressed air or other
flammable air to avoid explosion.
Slowly charge the nitrogen into the accumulator
so as to avoid the breakage of the rubber bag.
The air valve of the accumulator shall be
installed upward vertically. The accumulator shall
be stably fixed on the bracket without being
welded.
Do not drill any hole on the accumulator or carry
open fire or heat sources close to the
accumulator.
Do not conduct any welding operation on the
accumulator.
Since the accumulator is a high-pressure
container, it shall be replaced and repaired by
professional operators.
Release the air before discarding the waste
accumulator.
Preventing extruding or cut off
Do not have your hands, arms or any other
bodies placed between moving parts. For
example, between work implement and cylinder,
between machine and working implement.
When working under the work implement, you
shall support the equipment properly. Do not
support the work implement depending on
hydraulic cylinder. If control mechanism moves
or hydraulic oil line leaks, work implement will
drop. If it is necessary to remove the shield, you
shall fix it well after the repair.
Unless otherwise stated, any adjustment is not
permitted to be performed when machine or
engine is running. If the repair procedure must
be performed when machine is running, do not
let the machine stay in an unattended status.
Arrange one operator seated in the seat and
prepare to shut down the engine at any time.
Do not use twisted or worn wire rope. Wear
gloves during operation and move.
When forcing to extrude the bayonet, you shall
make sure no one is standing around it. You shall
wear safety goggles in order to protect your
eyes.
When knocking object with hammer, please
make sure the flying debris will not hurt others.
Oil
Hot oil and parts will cause personnel injury, and
do not let the hot oil and parts contact your skin.
At working temperature, the hydraulic oil tank is
hot and contains pressure. When opening oil
filler cap of hydraulic oil tank, shut off the engine
and cool the filler cap down until it can be
opened by bare hands. Remove the tank cover
slowly to release the pressure of hydraulic oil
tank so as to prevent from being scalded by hot
oil.
Release pressure of the system before
disassembling all pipes, connector, or relevant
parts.
P11000190
P11000148