AHHAC 25050 Hydraulics- Actuators

 

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Performance Objectives:

                                                                                                                    Pass     Fail                  

Topic 1: Cylinders

 1.1  Describe the basic components and operation of the following
    types of single-acting cylinders: single-acting load return
    cylinder, single-acting spring-return cylinder, telescoping
    cylinder.

1.2  Describe the basic components and operation of a double-
acting cylinder.

1.3  Describe the basic components and operation of a double-rod
cylinder.

1.4  Describe the basic functions of piston rings, rod seals, rod
wipers, and cylinder cushions.

1.5  Describe how fixed cylinder mountings and pivoting cylinder
mountings can be used to mount linear actuators.

 

Topic 2: Motors

2.1 Describe the basic components and operation of a vane
      motor and explain what a balanced vane motor is.

2.2 Describe the basic components and operation of the following
      types of gear motors: external gear motor, internal gear motor,
      gerotor motor.

2.3 Describe the basic components and operation of the following
      types of piston motors: in-line piston motor, variable displacement
      in-line piston motor, bent-axis piston motor.

2.4 Describe the basic components and operation of the following
      types of partial rotation actuators: vane type rotary actuator,
      crank-type piston actuator, rack-type piston actuator.

 

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Date Completed: _____________________________________________