The document summarizes an internship project at Bishoftu Automotive Manufacturing Industry. It discusses: 1) The company and its sectors including vehicle production, maintenance, and manufacturing. 2) The intern's work maintaining and repairing vehicles, including tasks like inspection, replacement of parts, and wheel alignment. 3) The intern's project to design a hydraulically operated tire and brake drum handler to reduce labor and time for those tasks. The design considerations, components, and working principle are outlined. 4) The benefits gained from the internship including practical skills, work ethics, leadership skills, and entrepreneurship skills applicable to future career success.

1. FACULTY OF MECHANICAL AND INDUSTRIAL ENGINEERING
HOISTING COMPANY: BISHOFTU AUTOMOTIVE MANUFACTURING
INDUSTRY
PROJECT TITLE: DESIGN OF HYDRAULICALLY OPERATED TIRE AND
BRAKE DRUM HANDLER
2014 E.C.
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BAHIR DAR UNIVERSITY
BAHIR DAR INSTITUTE OF
TECHNOLOGY

2.  OUTLINES OF MY PRESENTATION
 INTRODUCTION TO BISHOFTU AUTOMOTIVE
MANUFACTURING INDUSTRY
 OVERALL INTERNSHIP EXPERIENCE
 PROJECT SELECTED AND WORKED OUT
 OVERALL BENEFITS GAINED DURING THE
INTERNSHIP PROGRAM
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3. PART ONE
Introduction to Bishoftu Automotive Manufacturing
Industry
 Bishoftu automotive manufacturing industry was first
established in 1984E.C, and has been part of METEC
and now it is under Ethio-Engineering Group.
 It have different sectors: namely,
 Design and Development
 Power Train
 Vehicle Production Factory
 Tank Production Factory
 Body and Frame Production Factory and more.
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4.  Main products and service
 Maintenance and supply of frames of
vehicles
 Supply and maintenance of
construction machineries, heavy duty
buses and trucks
 Supply and maintenance of light
vehicles.
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5.  Customers of the Company
 Ministry of Defense
 Federal and Regional Government Offices
 Non-governmental Organizations
 Private firms and Others
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6. PART TWO
OVERALL INTERNSHIP EXPERIENCE
 Section of the company we have been
working in
 Garage
 Power train
 Light duty vehicle production
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7.  Work tasks that we have been practicing
on
 Light and heavy duty car maintenance
 This work has many steps with the special tools and
specification, which includes
engine assembling, disassembling and inspection
 checking tires, shafts, gearboxes and replace those
damaged and worn parts
 lubricate all parts with gear box oil before installation
 wheel alignment
 optimize the vehicle's driving characteristics, and
minimize possible tire wear, the front wheels must be
aligned at previously calculated angles.
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8.  Other services
 perform annual service according to the
manufacturer check list
 perform basic service according to the
manufacturer check list
 replace wiper washer reservoir
 remove and replace friction plates and
installing gear box on the truck
 remove the clutch servo
 install the clutch servo
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9.  Challenges observed during the internship
 Long working hours
 No working clothes and other supports are given
for us in the company
 Low number of customers
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10. PART THREE
PROJECT SELECTED AND WORKED OUT
 Project title: Design of hydraulically operated tire and
brake drum handler
 Short summary of the project
 The usual way of removing brake drum and tire is
done manually by lever and using other metals which
needs more time and more man power
 Decrease time consumption of workers so benefit to
the company. Almost every vehicle needs tire
servicing and brake lining which need removal of tire
as well as brake drum.
 So hydraulically operated tire and brake drum handler
is designed to modify the way a tire and brake drum is
removed and installed.
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11.  Weekly work plan
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Buy and weld
parts of the
machine

12.  Problem statement and justification
 The problem we observe in the company includes
the use of high human labor to remove and install
tire and brake drum.
 So the project discusses on the design of tire and
brake drum handler which operates hydraulically.
 The main problems are:-
 Requires more time to execute the operation
 It needs high man power to remove and install
 It needs high safety to execute the operation
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13.  Objective of the Project
 Main objective:
 Design of tire and brake drum handler
 Specific objectives:
 Reduce time needed for the operation
 Reduce man power needed
 Increasing the productivity of the operation
 Protecting the quality of the product
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14.  Methodology
 When we design the tire and brake drum we
followed the following methods:
 Collect data for the project from different sources
 Identify the possible mechanisms
 Select the proper material for each part
 Do each part design calculation
 Take the result and decision
 Draw a detail drawing of each part
 Draw assembly drawing of the machine
 Doing the cost estimation
 Give conclusion about design
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15.  Material Selection
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16.  Design Considerations
 Operating Pressure = 30MPa
 Total Load = 0.071ton = 710N
 Maximum lifting height of the ram =
30mm
 Total number of stroke needed = 15times
 Human force applied = 30N
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17.  Design of ram cylinder
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18.  Design of plunger cylinder
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19.  Design of lever
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20.  Design of reservoir
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21.  Design of base
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22.  Design of support curve 22

23.  Design of support frame
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24.  Design of handle
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25.  Design of tire handler 25

26.  Overall Assembly View 26

27.  Working principle
 First fill the oil into the reservoir of the hydraulic bottle
jack
 Push the machine to the car that need wheel service
 Pump the hydraulic bottle jack using lever up to
required height of brake drum or the lifted height of
the vehicle intended for
 Insert the brake drum of the vehicle to the support
curve or place the tire on tire handler frame base
 Tighten the drum using bolts or chain through the hole
prepared or tighten the tire to the handler using chain
if needed
 Pull the machine to the specified position
 After finishing the servicing again push the machine to
the vehicle
 Finally install the brake drum or the tire to the vehicle.
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28.  Cost estimation
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29.  Conclusion
 Tire and brake drum handling machine is designed
to remove and install a tire brake drum of vehicles
 It is special solution for the company to remove
and install the brake drum of car easily
 It saves man power and time to execute
 It has high safety
 It has high lifting ability than curved metal
 Its cost is not expensive
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30.  Recommendation
 We recommend the company that this
hydraulically operated tire and drum brake
handler is a total benefit for all bodies
involved when performing the operation,
so we recommend to manufacture the
project and use the product.
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31. PART FOUR
OVERALL BENEFITS GAINED DURING THE
INTERNSHIP PROGRAM
 Practical skills
 Understanding of setting out of heavy and light duty
vehicle maintenance
 Understanding how the vehicles are manufactured
 Increased knowledge about vehicles and man
power management
 Knowing how theoretical learning works practically
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32.  Work ethics related issues
 Good team work skills at different sections
of the company.
 Opportunities for advancement
 Enhancing professional image
 Being viewed as an asset
 Serving economic turndowns
 Future career potential
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33.  Leadership skills
 Communicate effectively
 Take owner ship and responsibility
 Great listener
 Encourage others through positivity
 Good management skill
 Commitment, integrity and passionate
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34.  Entrepreneurship skills
 The self-employed mind set
 The managerial perspective
 The attitude of owner (leader)
 The entrepreneurial investor
 The true entrepreneur
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35. U OG
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