SANY SY75, Руководство по эксплуатации и обслуживанию, Страница: 24 / 224

General Precautions SY75C Excavator OMM
2-4
Operation and Maintenance Manual — 0220
SANY
Disconnect electrical power from the machine unless needed for the procedure.
When lifting a heavy component, use a hoist or crane. Before starting work, check that the slings (wire ropes,
chains, and hooks) are free from damage. Always use slings which have enough capacity and attach them to proper
places. Operate the hoist or crane slowly to prevent the component from hitting any other part. Do not work on any
component suspended by the hoist or crane.
When removing a cover which is under internal pressure or under pressure from a spring, always leave two bolts in
diagonal positions. Loosen those bolts gradually and alternately to release the pressure, and then remove the cover.
When removing components, be careful not to break or damage electrical wiring.
When removing hoses or lines, stop fuel or oil from spilling out. If any fuel or oil drips onto the floor, clean it up
immediately.
Do not use gasoline to clean parts or any part of the machine.
When installing high pressure hoses, make sure they are not twisted. Damaged hoses are dangerous, so be
extremely careful when installing hoses for high pressure circuits. Make sure fittings are correctly installed.
When assembling or installing parts, always tighten them to the specified torques. When installing protective parts
such as guards, or parts which vibrate violently or rotate at high speed, be particularly careful to check that they are
installed correctly.
When aligning two or more parts, never insert your fingers or hand where they might be caught.
When measuring hydraulic pressure, ensure that the test equipment is properly assembled.
Take care when removing or installing the tracks. The track can snap apart suddenly when it is being separated.
Never let anyone stand at either end of the track when removing it.
Keep windows and doors open to provide enough ventilation in the shop, to vent outside, when operating the
engine.
Lifting Precautions
One worker should give signals and co-workers must be able to communicate with each other as needed. The
appointed signal person must signal clearly from a place where he can be seen from the operator's seat and where
he can see the work area. The signal person must always stand in front of the load and guide the operator.
• Do not stand under the load.
• Do not stand on the load.
Check slings before using them.
Wear appropriate PPE (i.e. leather gloves) when handling chains or slings.
Verify the weight of all loads before lifting them.