KEEWAY FACT 50 4T Maintenance Manual page 8

When installing a hose (fuel, vacuum or cooling agent), insert its
end into the bottom of the connector so that the hose clip can
properly fix the connector. Rubber or plastic dirt-proof boot shall
be mounted at the original design position.
槽：groove 夹子：clip 接头：connector
During dismantling ball bearings, one or two (inside & outside)
bearing rollers shall be supported by tools. Ball bearings may be
damaged during disassembly and have to be replaced if only one
roller (either inside or outside) is imposed with force.
以上两例都会使轴承破裂：Bearings will be broken under
either occasion as mentioned.
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