Yuchai YC20SR, Руководство по эксплуатации

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When inspecting or maintaining the hydraulic tank, be sure to vent air to release
the internal pressure.
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Inspection or maintenance of the hydraulic system includes checking the hydraulic
oil level, changing the filter element and adding hydraulic oil.

When disassembling the high pressure hose, check if the O sealing ring is
damaged. If damaged, replace.

When disassembling parts where the type O-ring or gasket is sealed, clean the
mounting surface and replace with new parts.

When installing the hose, do not twist or bent the hose with sharp angle. This can
damage the hose and significantly shorten the life of the hose.
5.2.7. Electrical System

It is very dangerous for electrical equipment to become wet or for the insulation of
wires to become damaged. This can cause electrical leakage and lead to machine
failure. When flushing the machine, be careful not to allow water to enter the
electrical components.

Maintenance of the electrical system: check and maintain the battery level; replace
various light bulbs; replace fuses and relays, etc.

Do not install any electronic components other than those specified to be installed
by Yuchai Heavy Industries.

When working at the beach, clean the electrical system carefully to prevent
corrosion.

When installing AC or other electrical equipment, connect it to a special power
connector. The selected power source should not be connected to the fuse, starter
switch or battery relay.
5.3. Wear and tear parts
Parts that are prone to wear and tear, such as seals, cartridges, bucket teeth and dozer plates ,
should be replaced during regular maintenance checks or when they reach their wear limit