Hydraulic and Pneumatic Systems Lab.

MET230L Hydraulic and Pneumatic Systems Lab
Instructor: Calvin Cox
Unit 4 Course Project – Part 2

Course Project
Part 2: First Modification of the Circuit
Due: End of Unit 4
Consider the pneumatic circuit shown. The following sequence occurs when the push button of
valve M1 is depressed:
a. Cylinder C1 extends
b. Cylinder C2 extends
c. Both cylinders retract
d. The cycle ends. (It executes just once)
Figure for Course Project – Part 1

In this Part of the project you will modify the circuit you built during Course Project Part I.
a. Open the Project_Pt1_LastName_FirstName simulation file you created in part I of this
project.
b. Rename and save it as Project_Pt2_LastName_FirstName
c. Replace the single acting cylinder C1 with a double acting cylinder.
d. Add a quick exhaust valve to each cylinder.
e. Conveniently position the flow control valves to control forward strokes.
f. Set the opening of all the flow control valves to 30%.
Figure 1: Modified circuit
g. Run the modified circuit and confirm that the return strokes are faster than the forward
strokes. If necessary, re-adjust the openings of the flow control valves.
h. Take a screen shot of EACH STATE CHANGE of the working simulated circuit.
Properly label and identify all screen shots as required by your instructor. Paste your
work below.