Leakage of lubricating oil or fuel oil can cause fire disaster.
Do not twist, bend or strike the hose.
Twisted, bent or cracked pipes, metal pipes or hoses shall not be used, otherwise
explosion may occur.
Retighten the loose joint.
Precautions for operating high temperature and high pressure parts:
1 .Please shut down the engine and wait for the mini-excavator to cool down
before maintenance.
2 . The engine, exhaust pipe, hydraulic pipe, sliding parts and many other parts of
the mini-excavator are very hot when the engine cylinder just stops. If you touch these
parts, you will be in danger of scalding.
3. Engine coolant, hydraulic fluid and other oils are also subjected to high
temperatures and pressures.
4 . Do not touch the hydraulic oil when loosening the cover or plug. If you operate
the mini- excavator under this condition, scald or injury may be caused by hot oil
spray.
Be careful of the internal pressure of the hydraulic oil:
1 . After the engine is shut down, the pressure in the hydraulic oil pipe will be
maintained for a long time. The internal pressure should be completely relieved
before operator carries out maintenance work.
2. Because the hydraulic oil pressure in the oil pipe is relatively high, it can pierce
the skin or eyes, thus causing serious injury, blindness and even death. Remember that
the hydraulic oil seeping from the small hole is almost invisible. When checking for
leaks, operators should wear goggles and thick gloves and protect their skin with
cardboard or plywood, to prevent the hydraulic oil from spraying and being injured.
Beware of high pressure grease:
In the caterpillar band tensioning device, grease will splash under high pressure.
The tension shall be adjusted according to the following specified procedure, The
grease relief valve may fall off, thus resulting in personal injury.
Do not loosen the grease fittings.
Slowly loosen the grease relief valve without turning it more than one turn.
Do not place face, arms, legs or body in front of the grease relief valve.
When loosening the grease relief valve, if no grease flows out, the valve fails. In
this case, do not disassemble the tensioning device, because the spring in the
tensioning device will pop out, which will cause serious injury. Do not remove the
caterpillar band tensioning device.
Precautions for battery:
1 . Disconnect the battery line before electronic system operation or welding. First
disconnect the negative battery cable, and finally connect the negative battery cable
when reconnecting.
2. When starting the engine with the battery charging line, do not touch the
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