jcb JS300 Service Manual page 887

Tracked excavators - tier 4i isuzu engine

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Cushioned Mode - Hand Controller In Neutral

When the hand control is in neutral, hot oil is taken from the

pressurised oil cooler line, entering port R of the cushion

valve, through the outer spool and around the inner spool,

via the galleries E and F, around the middle of the outer,

via galleries G and H, returning to the tank via port T.

K Fig 3. ( T E-226)

Fig 3. Cushioned Mode - Hand Controller in Neutral

Section E - Hydraulics

Cushion Valve

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