Question

In: Mechanical Engineering

3. Design and draw a circuit using the cascade system to operate two cylinders (A and...

3. Design and draw a circuit using the cascade system to operate two cylinders (A and B) which, on the operation of a start valve, produces the sequence A – B + B – A+. The cylinders should park in the positions B – A + when the start switch is in the ‘off’ position.

4. Modify the circuit designed for question 3 to provide an emergency stop which will park both cylinders in the extended position (i.e. A + B +).

5. Modify the circuit designed for question 3 to provide a fail safe. The fail safe should:

(a) act in the event of a reduced pressure at inlet to the group selecting valve

(b) park the cylinders in the retracted position

Solutions

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