Kubota KX080-4 Workshop Manual page 128

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KX080-4, WSM

[F] Reverse Check Valve

• When the motor is stopped, the reverse check valve

prevents the swivel body from turning in reverse

when it is stopped due to accumulated pressure by

linking the motor's main line and makeup line for a

certain period of time.

(2) Flow regulating valve

(3) Check valve

(4) Damper chamber

a)In neutral

• The check valve is held in balance in the middle by

the spring. (Equal pressure on ports P1 and P2)

b)Acclerating to uniform RPM

• When swiveled, the check valve is pressed on the

high-pressure side, seating the check valve.

(1) Supply pressure

c)When braking

• Brake pressure shifts the check valve full stroke,

(1) Brake pressure

HYDRAULIC SYSTEM

(5) Orifice A

(6) Orifice B

(7) To high-pressure passage

(8) To makeup

RY9212148HYM0035US0

RY9212148HYM0036US0

RY9212148HYM0037US0

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KiSC issued 08, 2015 A

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