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close this bookAppropriate Community Technology - A Training Manual (Peace Corps; 1982; 685 pages)
View the documentThe Farallones Institute Rural Center
View the documentCHP International, INC.
View the documentPreface
View the documentAcknowledgments
View the documentIntroduction
Open this folder and view contentsPhase I: Introduction to training
Open this folder and view contentsPhase II: Earthen construction and fuel-saving cookstoves
close this folderPhase III: Pedal/treadle power
View the documentPhase III Calendar
View the documentSession 1. Maternal and child health: part 1
View the documentSession 2. The path of the sun
View the documentSession 3. Introduction to pedal/treadle power
View the documentSession 4. Design considerations for pedal/treadle power
View the documentSession 5. Classical mechanics: principles of pedal/treadle power
View the documentSession 6. Use of appropriate aids to communication
View the documentSession 7. Maternal and child health: part 2
View the documentSession 8. Part one: familiarization with materials and tools
View the documentSession 8. Part two: familiarization with the bicycle
View the documentSession 9. Introduction to design considerations
View the documentSession 10. Presentation of designs
View the documentSession 11. Construction of pedal/treadle-powered devices
View the documentSession 12. Blacksmithing and metalwork
View the documentSession 13. Appropriate technologies for health
View the documentSession 14. Case studies in community health
View the documentSession 15. Preparation for pedal/treadle presentations* *
View the documentSession 16. Heat transfer
View the documentSession 17. The role of the volunteer in development: international development part 1: the green revolution: successes and failures
View the documentSession 18. Presentation of pedal/treadle-power devices
View the documentSession 19. Volunteers in development part one. women in development
View the documentSession 20. Mid-program evaluation part one : program evaluation
Open this folder and view contentsPhase IV: Solar water heaters
Open this folder and view contentsPhase V: Solar agricultural dryers
Open this folder and view contentsPhase VI: Concluding the program: The energy fair
Open this folder and view contentsAppendices

Session 8. Part two: familiarization with the bicycle

Total time:

1 hour


* To discuss the major issues regarding the promotion and use of bicycle-powered devices in the Third World
* To disassemble a bicycle and identify the parts


Newsprint, felt-tip pens, bicycles, wrenches, screwdrivers, hammers, etc.


* McCullough, Pedal Power
* Cuthbertson, Anybody's Bike Book
* Attachment III-8/2-A, "Bicycle Diagram"

Trainer Notes

* This session is optional and should be used at your discretion, depending upon the extent to which you wish to focus on the use of bicycles during the pedal/treadle phase.

* You should, however, spend some time discussing the issues involved in the use of bicycles in developing countries (See Step 1). Decisions regarding the extent to which bicycles will be emphasized during the phase should depend upon points raised during this discussion.

Step 1. (15 minutes)
Present the session objectives, distribute Attachment III-8/2-A, "Bicycle Diagram," and facilitate a discussion of the mayor issues involved in the promotion and use of bicycle-powered devices in developing countries.

Trainer Notes

During the discussion you should stress the following points:

* In many developing countries, bicycles are scarce and their primary use is for transportation.

* Given their scarcity and expense, it is unlikely that people would be willing to disassemble their bicycles for use in pedal-powered devices.

* If bicycles are used for power generation, mobile dynapod designs are more suitable than fixed designs.

Keep this discussion as specific as possible to the countries in which the participants will be working.

Step 2. (15 minutes)
Have the participants form small groups. Provide each group with a bicycle and ask that they identify the parts of the bicycle and develop a procedure for disassembling it.

Trainer Notes

Explain that the group members should assist one another in identifying the bicycle parts. When the groups have developed their procedure for disassembly, have each group verify the procedure with you.

Step 3. (30 minutes)
Have the groups disassemble the bicycles.

Trainer Notes

As the groups are working, circulate among them, encouraging participants to help one another and to try working together as cooperatively as possible.

Step 4. (15 minutes)
Reconvene the groups and encourage a discussion of the disassembly activity.

Trainer Notes

Stimulate this discussion by asking the following questions:

* Did you learn anything new about bicycles during this activity?

* Can you think of any ways in which bicycles might be used for generating power in your work as Peace Corps Votunteers?

* Was there anything which occurred during the activity that fostered the development of a sense of cooperation among your fellow group members?


The above illustration is that of a ten-speed bicycle, which is the most complex type.

Other types, such as single and three-speed, do not have multiple front sprockets and derailleur.

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