Takeuchi TB175W, Руководство по ремонту

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HYDRAULIC UNITS
CYLINDERS
IV-103
TB175W
OPERATION
Hydraulic oil flowing alternately in and out of the oil
outlet and inlet on both sides (head and rod sides) of
the piston acts on the piston and its force causes the
piston to move back and forth.
In cylinders equipped with a cushion mechanism, the
shock resulting from the piston colliding with the
cover at the stroke end acts on that mechanism and is
dampened by it.
Cushion Mechanism
When the piston (1) nears the stroke end, just before
it collides with the cover (2), if the cushion bearing (3)
that precedes it enters the inner diameter portion of the
cover, the oil in the back of the piston is restricted by
the cushion bearing (3) and the clearance (4) of the
cover inner diameter portion. This causes the piston’s
(1) back pressure to rise and slows the piston’s speed.
1
3
A
2
4
DETAIL PORTION "A"
L1-D406E