LESSON 2
BASIC CONSTRUCTION AND OPERATION OF HYDRAULIC
ACTUATING DEVICES, FLOW CONTROL, AND DIRECTIONAL DEVICES
STP Tasks: 552-758-1003
552-758-1071
OVERVIEW
LESSON DESCRIPTION:
In this lesson you will learn the basic construction and operation of hydraulic actuating devices, flow
control, and directional devices.
TERMINAL LEARNING OBJECTIVE:
ACTION:
After this lesson you will demonstrate a knowledge of the basic construction and
operation of hydraulic actuating devices, flow control, and directional devices.
CONDITIONS:
You will study the material in this lesson in a classroom environment or at home.
STANDARD:
You will correctly answer all the questions in the practice exercise before you
proceed to the next lesson.
REFERENCES: The material contained in this lesson was derived from the following publications:
AR 310-25, AR 310-50, FM 1-500, FM 1-509, TM 1-1500-204-23 Series, TM 55-
1510-Series, TM 55-1520-Series and TM 4301A 05 0267 (Airforce).
INTRODUCTION
So that fluid pressure produced by a pump can be used to move some object, the pressure must be
converted to usable forces by
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