PURPOSE:  The purpose of this lab exercise is to develop a working knowledge of common flow control
                      circuits used for controlling the speed of an actuator.

OBJECTIVES:  After completing this laboratory exercise, you should be able to do the following:

        1.  Design and construct a meter-in, meter-out and bleed off circuit using the Vickers Hydraulic Trainers;
        2.  Run the circuit(s) to verify operation;
        3.  Determine the setting of the flow control valve for the three types of circuits;
        4.  Determine the horsepower consumption at the actuator for each of the three types of circuits;
        5.  Determine the system horsepower required at three phases of operation for each of the
             three types of circuits;
        6.  Determine the horsepower requirement for the prime mover for each of the three circuits;
        7.  Evaluate the horsepower consumption across the three types of circuits;
        8.  Identify appropriate conditions for implementing each of the three types of circuits.

PROCEDURE:
    The following steps should be taken in carrying out this laboratory:
        1.  Draw the meter-out circuit as shown below;
        2.  Construct the circuit to verify circuit operation;
        3.  Calculate the flow control setting in GPM for a controlled speed of 30 inches per minute;
        4.  Determine the pressure at the actuator;
        5.  Determine the HP consumption at the actuator;
        6.  Determine the HP consumption at the PUMP discharge port;
        7.  Specify the electric motor requirement @ .9 efficiency;
        8.  Repeat the same procedure for a meter-in circuit;
        9.  Repeat the same procedure for a bleed-off circuit;
       10. Construct a table summary of the flow control setting and HP across the three types of circuits;
       11. Write a formal report of your findings and submit by next class period.