AUTOMOTIVE MULTI-FEARTURE JACK ERIC P. LABIS CLEM JUN A. BABARAN ALMI JAY L. CALIMPONG CARLMAN ROY C. LEGASPI A RESEARCH PROJECT Submitted in Partial Fulfillment Of the Requirements for the Degree BACHELOR OF SCIENCE IN AUTOMOTIVE MECHANICAL TECHNOLOGY Department of Automotive and Mechanical Technology College of Industrial and Information Technology Mindanao University of Science and Technology Cagayan de Oro City, 9000 Philippines March 2012

AUTOMOTIVE MULTI-FEATURE JACKERIC P. LABISCLEM JUN A. BABARANALMI JAY L. CALIMPONGCARLMAN ROY C. LEGASPIA RESEARCH PROJECTSubmitted in Partial FulfillmentOf the Requirements for the DegreeBACHELOR OF SCIENCE IN AUTOMOTIVE MECHANICAL TECHNOLOGY

Department of Automotive and Mechanical TechnologyCollege of Industrial and Information TechnologyMindanao University of Science and TechnologyCagayan de Oro City, 9000 PhilippinesMarch 2012

ABSTRACTIn this study, an innovation of Multi Feature Automotive Jack is design and developed using locally available materials in order to provide students, instructor, and Automotive Technicians with useful insights on the basic theories and principles in Multi Feature Automotive Jack. The resulting device is then evaluated in terms of functionality, aesthetic, cost effectiveness and safety. Result show that the device is generally acceptable in terms of these criteria.Keywords; Automotive Hydraulic Jack, Multi Featured, Innovation, Transmission Pad.

ACKNOWLEDGEMENT

First and foremost, the researchers would like to thank the Lord Jesus Christ who has not failed in keeping them standing on the ground on the ground all through these years and for enlightening their minds during the conduct of the study. They would also like to express their heartfelt thanks to their families for their constant and never ending love, support and encouragement and for giving them enough confidence to pursue and realize their dreams.They would also like to thank their adviser Mr. Arnelo Naelga, Mr. Demetrio Bonayog, and Mr. Emetrio Castro for their support, guidance and encouragement. They are the source of their motivation, knowledge and help throughout the conduct of this study, without their support and advice, successful completion of this study would not have been possible.Lastly, the researchers would also like to extend their thanks to Mr. Aberin for giving them his patience and precious time during their work at the shop.THANK YOU VERY MUCH AND GOD BLESS!

AUTOMOTIVE MULTI-FEATURE JACK

CHAPTER I

INTRODUCTION

1.1Background of the study

One of the mandates of higher education institutions (HEIs) such as the Mindanao University of Science and Technology (MUST) is to offer higher technological, professional and advanced instruction in science and technology. In order to fulfill its mandates, MUST is offering various technology degree program such as automotive technology.

Automotive technology is rapidly growing in terms of new equipment and special tools that can now be used in any automotive shop for repairing jobs and for the maintenance of an automobile cars, thus there is indeed a need to provide intensive career preparation through a combination of classroom instruction and hands- on practice. Automotive technicians and automotive student execute vehicle repairs such as oil change and diagnose complex problem.

In order to diagnose complex problems the automotive student is in need of equipment such as hydraulic jack. This jack is one of the best equipment used in automotive works to lift and pull down an automotive transmission and under chassis parts. This equipment is convenient and easy to use without using much force in removing and replacing transmission and under chassis parts. More powerful car jack used hydraulic cylinder to provide capacity for lifting higher loads over a greater capacity. This jack are rated on the basis of maximum lifting capacity and generally mentioned in tons 1.5 to 2 tons. Also this device can perform changing tires, lifting and pulling car differential, and other specific jobs because this jack has multi tasking capability.

The difference between the existing hydraulic jacks is directly connection to the lifting arm while the new innovation use bracket and sliding guide connected to the lifting arm.Based on the evaluation that we gathered from the existing one we come-up to an idea to the existing one to our desired design to have a Multi Feature Automotive Jack use on the laboratory shop. The hydraulic jack is basic needs to the automotive task; it helps to listen the range of time of the technician during working.

1.2Statement of the problemMUST and other colleges, universities and vocational schools here in Cagayan de Oro City offering automotive technology courses are experiencing lack of special tools in the laboratory. The lack of special tools for shop work causes difficulty in automotive services and repair jobs.This situation has prompted the researchers to design and develop a automotive multi feature jack to aid the students in their laboratory activities. The design and development of the automotive multi feature jack sought to answer the following concern;a. What are the factors to be considered in the design of the jack?b. What are the parts, components and its specification in order to come-up with a automotive multi feature jack?c. What are the criteria needed in the evaluation on the performance of the jack?

1.3Objective of the studyThe objective of this study is to design and develop an automotive multi feature jack that will provide a comfortable, convenience and easy to use in removing or replacing under chassis parts, and to minimize the range of time and lessen the exertion of force in removing or replacing transmission and under chassis parts.

Specific objective1. To design an automotive multi feature jack. 2. To develop and fabricate an automotive multi feature jack. 3.To evaluate an automotive multi feature jack in terms of the following criteria; a. Functionalityb. Aestheticc. Cost effectiveness d. Safety

1.4Significance of the studyThe availability of the automotive multi feature jack will provide automotive and mechanical students in their field to easy manipulate a specific task especially in removing or replacing transmission and under chassis parts. It will also help automotive instructors to demonstrate during their actual practice.

1.5Scope and LimitationThe researcher focused only for lifting and pulling down the automotive transmission and under chassis parts, this jack is limited only for small car with the capacity of 2 tons, Also this research will also serve as an instructional device in automotive laboratory.

CHAPTER IIREVIEW OF RELATED LITERATURE

These chapter present ideas gleaned from related literature, studies and other sources that deal similarly with the problem of the studyPascal (1653), stated that when there is an increase in pressure at any point in a container of fluid, there is an equal increase in pressure at every other point in the container. This fluid exerts pressure in all directions within the jack. This fluid can transfer a small amount of force created by the jack operator to a much greater amount of force that can lift up any object. A hydraulic jack has many elements such as pump motor, water tank, check valve, tube, piston and the release valve. The hydraulic fluid is found on the reservoir and pump motor can get the water up. This can then create as tress as it shoves the water on the check valve. The fluid will go to the primary cylinder and it willpower the piston. One of the most widespread jacks is situated in the car which is used when changing wheels. They may be very easy to use as compared to the screw jacks. Hydraulics created a lasting influence on the life of people.

Richard Dudgeon (1851), a Scottish machinist who emigrated to the U.S., invented the hydraulic jack. He set up a machinist's shop in New York City. The hydraulic jack is just one of the many significant inventions of Dudgeon. In 1851, he was given a patent for the invention. The U.S. Postal Service issued a stamp in his honor recognizing his contribution to industrial advancement.Jason Miller (2000), stated that the tool that is most required by all workshops that are serious about carrying out repairs on a wide variety of vehicles is the standard transmission jack. These flexible and versatile lifting systems have many uses, and are essential for a wide range of different repair and servicing jobs.Unlike a conventional jack, which raises a vehicle using either the chassis, or the axles, a transmission jack is positioned centrally, and lifts the transmission. Generally, the procedure for removing a transmission or gear box from a vehicle begins with positioning the transmission jack under the box. It is then raised to take the weight of the transmission, so that it can be safely detached from the engine block. Once this has been achieved, the jack can be raised the rest of the way up in order to allow the complete removal of the transmission ready for servicing.

A unit like the OTC 1728 jack is perfectly suited to such tasks. It is small enough to be easily moved around by a single mechanic, and yet hard wearing enough to be used every day without fear of failure. The unit comes with a lifetime guarantee, and thanks to its precision construction is a very reliable tool.As with all tools, the OTC 1728 Transmission jack is designed with a specific purpose in mind, and features many enhancements to a basic design to make it easy to use. A gas lift piston to raise the transmission block when the jack is in use is combined with a manual release for easy detachment when the job is complete, and in use, the OTC 1728 is intended to be as simple as possible.

R C Rosignol, B.S., Physics Teacher, Pace High School, Brownsville, TX (2001),Hydraulic jacks and much other technological advancement such as automobile brakes and dental chairs work on the basis of Pascal's Principle, named for Blaise Pascal, who lived in the seventeenth century. Basically, the principle states that the pressure in a closed container is the same at all points. Pressure is described mathematically by a Force divided by Area. Therefore if you have two cylinders connected together, a small one and a large one, and apply a small Force to the small cylinder, this would result in a given pressure. By Pascal's Principle, this pressure would be the same in the larger cylinder, but since the larger cylinder has more area, the force emitted by the second cylinder would be greater. This is represented by rearranging the pressure formula P = F/A, to F = PA. The pressure stayed the same in the second cylinder, but Area was increased, resulting in a larger Force. The greater the differences in the areas of the cylinders, the greater the potential force output of the big cylinder. A hydraulic jack is simply two cylinders connected as described above.

CHAPTER IIIMETHODOLOGYIn this chapter the various activities necessary in the conduct of the design mechanism are discussed.

3.1 Design of the deviceThis study considers an automotive multi feature jack that is ideal for the laboratory use. Figure 1 and 2 show the perspective and right side view of the device.

Figure 1.Perspective view of the device

The figure shows the complete assembly and parts of the device the bracket used to hold the sliding guide and the metal frame, sliding guide used to connect to the lifting arm, hydraulic jack used to push the lifting arm going up, lifting arm used to carry loads up and down position, link used to support the lifting arm, round bar used to connect the upper whole of the lifting arm for the fixed position and both end of it is being lock by lock pin, transmission pad used to hold transmission engine, caster used to support the assembly and for easy to transferred from one place to another.Figure 2.Right side view of the device

The figure shows the dimensions of the height of the front wheel 3 the length of transmission pad is 8 the length of the frame is 21x18 and the height of the back side is 5. the caster is used to support the assembly and easily transfer from one place to another. The handle is used to pump the hydraulic jack and for transferring to any direction.

Figure 3.Top view of the device This figure shows the metal sheet, the handle, rear caster, lifting arm, link, transmission pad front caster and its dimension of length of the jack which is 39 and the width have a 9.

Figure4. Front view of the deviceThis figure shows the dimension of the height of the handle which is 37and the inside parts of the device

Figure 5 Isometric right side view linkage of the deviceThis figure shows the isometric linkages right side view of the device and the inside parts which are the rear caster, bracket, sliding guide, handle, lifting arm, link, saddle carrier and the transmission pad.

Figure 6. Isometric left side view linkages of the deviceThis figure shows the isometric view of the left side view linkages of the device and the inside parts which are the rear caster, release valve, bracket, sliding guide, handle, lifting arm, link, saddle carrier, and the transmission pad.

Figure 7 Schematic diagram of hydraulic jackThis figure shows the schematic diagram of the hydraulic jack with the example of the hand force of 150mm and the load of 350kg showing the operation with all the parts of the jack which are the which oil bleed valve, oil tank, load piston, atmosphere pressure; pump piston, and the check valve 1 and 2.

A basic hydraulic jack has a lot of goal.A multiplication of forcecan be achieved by the application of fluid pressure according toPascals principle, which for the two pistons impliesP1= P2This allows the lifting of a heavy load with a small force, as in an auto hydraulic lift, but of course there can be no multiplication of work, so in an ideal case with no frictional loss:

Winput= Woutput

Calculation:

For example, if the lift cylinder were 25 cm in diameter and the small cylinder were 1.25 cm in diameter, then the ratio of the areas is 400, so the hydraulic press arrangement gives a multiplication of 400 times the force. To lift a 6000 newton car, you would have to exert only 6000 N/400 = 15 N on the fluid in the small cylinder to lift the car. However, to lift the car 10 cm, you would have to move the oil 400 x 10cm = 40 meters. This is practical by pumping oil into this small cylinder with a small compressor.

3.2 Prototype developmentIn the development and construction of the automotive multi feature jack, the following parts are needed a hacksaw, hammer, pull push rule, marker, file, wrenches, electric drill, drill press, vise grip, benches vise, grinder, and welding machine are the tools used to construct the Automotive multi feature jack.In the implementation, the flat bars, pipe and round bars are measured to their desired length and cut using hacksaw and holes are drilled in the flat bars and round bars in order to attach the holes and by the use of pin or lack nut. In order to fabricate the metal frame, the cut flat bars and round bars are joined using electric arc welding machine. The welded surface is grind using portable electric grinder to smoothen the base surface. The caster wheels are attached to the base and the newly fabricated base is painted.

3.3 Testing and fine TuningThe testing and fine tuning of the device is conducted after the fabrication of the device in order to measure its accuracy and effectiveness. This will also check for any possible errors in the device.

3.4 Evaluation of the acceptability and functionality of the equipment The innovation will be evaluated using descriptive statistic by way of five-point Likert scale. The evaluation bearing parameter in terms of safety, functionality, aesthetic, cost effectiveness, relevant principles and operation are developed in order to determine the acceptability of the training tolls. The respondents are the students, instructors and automotive technician in the field of automotive technology.

3.5 Multi Feature Automotive Jack Assembly All the parts needed in the assembly of the automotive multi feature jack are first cleaned and fined. The other parts are painted. The hydraulic jack is in a good condition, the bracket, sliding guide, hydraulic jack, fork, lifting arm, saddle carrier and saddle pad. The parts are assembled into the metal frame. The hydraulic jack is properly mounted to the slider in order to attach the piston jack to the lifting arm to lift it up.

Figure 8 shows the automotive multi feature jack assembly of the deviceThis automotive multi feature jack assembly is connected to the jack lifter show in the figure. And all the parts are being identified as shown in the figure.

1. Hydraulic Jack8. Bolt and Nut2. Metal Frame9. Lifting Arm Shaft3. Lifting Arm10. Sliding Guide4. Saddle Pad 11. Bull Caster5. Wheel Shafting12. Bracket6. Front Wheels 13. Release Valve7. Link14. Handle

3.6 Evaluation of Performance and Acceptability of the device.

Randomly selected students and faculty members of the Department of Automotive Technology are asked to evaluate the performance and acceptability of the device suing a given criteria which include functionality, aesthetic, safety, cost effectiveness. Researchers undergo an analytical procedure to get the mean of the respondents in terms of every criteria and showing the percentage of the acceptability as shown below.

Table 1 shows the adjectival ratings used in the calculation.Table 1 The Adjectival Ratings.

1.9 belowVery Poor2.0 2.9Poor3.0 3.9Good4.0 4.9Very Good5.0 upExcellentCHAPTER IVRESULTS AND DISCUSSIONThis chapter discusses the results and evaluation of the innovation.

4.1Development of the Device

Figure 9 Shows the Metal Frame of the DeviceThe figure shows the parts which are the bracket mounted to the metal frame, the lifting arm shaft is used to connect the metal frame and to hold the lifting arm then the both end are being lock by the lock pin.

Figure10. Shows the Bracket, Sliding guide, Hydraulic jack, lifting arm, Saddle Carrier, release valve, rear caster, link, front caster and Saddle pad.

This figure shows all the parts are already installed in the metal frame the bracket, sliding guide, hydraulic jack, lifting arm, link, saddle carrier, rear caster, release valve and the front caster.

Figure 11.Top View of the Complete Automotive Multi Feature jackThis figure shows the complete assembly of automotive multi feature jack , and this figure is the actual output of the device.

Figure12. The front View of the Complete Automotive Multi Feature jackThis figure shows some parts of the device which are the front caster, sliding guide, lifting arm, link, saddle carrier, and the transmission pad of the multi feature jack.

Figure 13.The left side View of the Complete Automotive Multi Feature jackThis figure shows some parts of the device which are the caster, release valve, lifting arm, link saddle carrier and the transmission pad of the device

Figure 14 the back View of the Complete Automotive Multi Feature jackThis figure shows some parts of the device which are the installation of bracket, rear caster, sliding guide, link, lifting arm, saddle carrier, transmission pad, release valve and the handle of the device

4.2Advantages and DisadvantagesAdvantages:a. It can be used any laboratory task that required force to left any automotive parts and changes tire. b. The saddle pad is removable from the saddle carrier where the saddle pad is placed.c. The hydraulic jack is removable from the slider.Disadvantages: a. The hydraulic jack will not function if it is not perpendicular to the ground. b. The hydraulic jack will not function if the release valve is not properly lock.

Feature: a. The transmission pad is used to remove and replaced the transmission from the engine. b. The saddle pad is used for changes oil and other task that in need of saddle.

4.3 Testing and Fine TuningIn order to come up with a functional instructional multi feature automotive jack, revision in the set up are conducted to correct the defects observed during thedevelopment of the device. This is discussed in Table 1.

Table2. Defects observed and the revisions undertake

DefectsRevisionsA. Set up of the base framea. The steel plate for the frame is not properly cut and the measurement was not followed.

b. The sliding guide where the hydraulic jack is attached is not properly aligned to the guide.

c. The sliding guide will not automatically goes down when the release valve is released a. The steel plate is cut by revising the plates according to the accurate measurement of the frame.b. The hydraulic jack is place not at the center in order to align it to the guide.

c. Put oil to the sliding guide so that it will automatically goes down when the release valve is released.DefectsRevisionsB. Set up of the bracket, sliding guide, hydraulic jack, lifting arm, saddle pad holder and saddle pad.a. The bracket is large.

b. The saddle pad holder is heavy and solid square bar.c. The jack will not function if the jack is not in proper position.d. Sometimes the sliding guide will stuck-up due to lack of lubricant.a. The size of the bracket is being adjusted.

b. The saddle pad holder is replaced with steel plate.c. Place the jack in proper and correct position.d. Put enough lubricant to the sliding guide.

Figure15. Actual Lifting of the Automotive TransmissionThis figure shows the actual lifting of the automotive transmission

Figure16. Actual Lifting of the VehicleThis figure shows the actual lifting of the vehicle.As shown in Table 3, the researchers established evaluation parameter that Measure the Functionality of the device. In terms of principle and operation and Identification of parts, the respondent give a mean response of 4.7 (equivalent to An adjectival rating of very good) indicates that the respondents find the device Used as a laboratory tools.

Respondents also find device useful and functional for laboratory purposes in automotive course based on the mean response rating of 4.5 (equivalent to an Adjectival rating of very good).Table 3.Mean Responses in Terms of Functionality

FunctionalityMean1. The device will demonstrate the principles and operation of hydraulic jack.4.72. The device serves as a model for repair and maintenance.4.23. The device can be accommodated in average size laboratory task and can be easily be transfer from one place to another.4.04. Internal parts are easy to identify.4.25. The device will be useful and functional for laboratory purpose in automotive courses.4.5 OVERALL MEAN4.32The functionality of the device was rate 4.32, very good which means that the device was perceived to demonstrate the principle of the hydraulic jack, it serve as a model for repair and maintenance, it can be easily transferred to one place to another, its part can be easily identify and the device is useful and functional as a laboratory equipment in automotive.The mean rating in terms of aesthetic are shown in Table 4. A mean result of5.0 (equivalent to an adjectival rating of excellent) indicates that the respondent find the device well prepared and properly mounted. In terms of assembly and parts results indicate a mean response of 4.0 (equivalent to an adjectival rating of very good) which implies that the assembly and parts is very good.

Table 4. Mean Response in Terms of Aesthetic.

AestheticMeanThe device is really prepared5.0Each assembly and parts are properly mounted.4.0Inside portion of each assembly and parts is being covered with a metal sheet.4.0OVER ALL MEAN4.53The aesthetic of the device was rate 4.53, very good which means that the device was really prepared, its assembly and parts are properly mounted, the inside portion of each assembly and parts are being covered with a metal sheet. The mean rating in terms of cost effectiveness are shown in table 5. Base on the result, we gathered from the respondent find the device economical in terms of material and supplies, as indicated in the main response of 4.3 which is equivalent of adjectival rating of very good. In terms of availability of parts, the result indicated that the device is very good based on the main response rating of 4.5.

Table 5.Main Response in Terms of Cost Effectiveness

Cost effectivenessMainThe device is economical in terms of supplies and materials.4.3The parts of the device are all available in the market.4.5 OVERALL MEAN4.4The cost effectiveness of the device was rate 4.4, very good which means that the device is economical in terms of supplies and materials, the parts of the device are all available in the market. The main rating in terms of safety are shown in table 6 base on the result, the respondent indicated mean response of 4.1, which is equivalent to an adjectival rating of very good, in terms of the bracket and hydraulic jack is fully welded. In terms of release valve to ensure that the jack will not automatically release accidentally, a mean response of 4.3, which is equivalent to an adjectival rating of very good.

Table6. Mean Response in Terms of Safety

The safety of the device was rate 4.2, very good which means that the device is equipped with release valve to insure that the jack will not automatically release accidentally, the bracket is fully welded of its parts and uses.

In summary, all the result of the evaluation of the device is generally accepted in terms of Functionality, Aesthetic, Cost Effectiveness and Safety.

SafetyMeanThe bracket and hydraulic jack is fully welded of its components and uses.4.12. The device is equipped with release valve to ensure that the jack will not automatically release accidentally. 4.3 OVERALL MEAN4.2CHAPTER VCONCLUSION AND RECOMMENDATION

This chapter presents the conclusion and recommendation on the study

5.1 ConclusionIn this study, the multi feature automotive jack is designed and developed. Moreover, a survey is then conducted among students, instructors and automotive technicians to evaluate the acceptability of the device in terms of various parameters. Result shows that:

a. The functionality of the device is rated 4.32 with an adjectival rating of very good. The respondents find that the innovation will be very useful for laboratory purposes in automotive jobs, the innovation demonstrate the principle and operation of hydraulic jack. b. The aesthetics of the device is rated 4.53 with an adjectival rating of very good. The respondents find the innovation is well prepared and properly mounted.c. The effectiveness of the device is rated 4.4 with an adjectival rating of very good. The respondents find the innovation is economical in terms of materials and supplies, also the respondents find that the parts of the innovation are all available in the market.

d. The safety of the device is rated 4.2 with an adjectival rating of very good. The respondents find the innovation is safety in terms of the brackets and the hydraulic jack is fully weld and the release valve is secure to ensure that the jack will not automatically release accidentally.

Based on these result, the automotive multi feature jack will help automotive student and automotive technology instructors in their laboratory practices.

5.2 Recommendation

The design is recommended to enhance and improve the acceptability of the device in terms of functionality aesthetic, safety and cost effectiveness, the following are recommended;Make an adjustment to the measurement of the sliding guide smaller than the new made so that it will become more attractive and fit to the designed. Make replacement of bigger hydraulic jack 4tons to 6tons so it can be used for heavy trucks.Make your own fabrication of the parts designed to minimize the labor cost of your innovation.

The release valve must be properly set up to the handle to prevent any accident that we did not expect to happen during working.The bracket and sliding guide must be fully welded to the frame to secure the strength of the metal frame of the innovation.Further study on the design and innovation of the multi feature automotive jack is recommended.

BIBLIOGRAPHYa. BooksRichard Dudgeon (1851). Scottish machinist, Industry leader of hydraulic jacking system, born near Edinburgh in 1819.Jason Miller, (2000). Red Hill Supply Transmission JackAutomotivePublished: January 31,2008

R C Rosignol, B.S., Physics Teacher, Pace High School, Brownsville, TX(2001).

b. Websiteshttp://Anna123.articlesnare.com/functions-of-hydraulic-jacks.htmHow a Hydraulic Jack Works eHow.comhttp://www.ehow.com/hydraulicjackworks.html#ixzz1mKakdlR3Otto Service: Hydraulic Bottle and Floor Jackswww.ehow.comwww.wisegeek.comwww.trade.gov.com

APPENDIX A

Multi Feature Automotive jack Evaluation

Name: __________________________________ Date: ___________

Occupation/Course and Section: ______________ Age: ______

Direction: shown to you is the multi feature automotive jack. Please rate its Functionality,

Safety, Aesthetic, Cost effectiveness. By checking the appropriate column of your choice, the

rating means s the following:

1 Very Poor

2 - Poor

3 - Good

4 - Very Good

5 - Excellent

Functionality 1 2 3 4 5

1. The device will demonstrate the principle and

operation of the hydraulic jack. ___ ___ ___ ___ ___

2. The device serves as a special tool for repair and maintenance. ___ ___ ___ ___ ____

3. The device can be accommodating in average size

laboratory task and can easily be transferred from

one place to another. ___ ___ ___ ___ ___

4. Internal parts are easy to identify ___ ___ ___ ___ __

5. The device will be useful and functional for

laboratory purposes in automotive course ___ ___ ___ ___ ___

Aesthetic

1. The device is really prepared. ___ ___ ___ ___ ___ 2. Each assembly and parts are properly mounted ___ ___ ___ ___ ___ 3. Inside portion of each assembly and parts are being

covered with a metal sheet. ___ ___ ___ ___ ___

Safety 1. The bracket and hydraulic jack are fully welded

of its components and uses. ___ ___ ___ ___ ___

2. The device is equipped with release valve to ensure that the jack will not automatically release accidentally. ___ ___ ___ ___ ___ Cost Effectiveness1. The device is economical in terms of supplies and materials. ___ ___ ___ ___ ___ 2. The parts of the device are all available in the market. ___ ___ ___ ___ ___

APPENDIX BMAINTENANCE AND OPERATING MANUAL OF THE HYDRAULIC JACK

MAINTAINING OIL LEVEL

Important: When adding or replacing oil, ALWAYS use good grade Hydraulic Jack oil. DO NOT use Hydraulic Brake Fluid, Alcohol, Glycerin, and Detergent, Motor Oil or dirty oil. Use of an improper uid can cause serious internal damage to your jack.

ADDING OIL Position the jack on level ground and fully lower the saddle. Remove oil ller plug from the reservoir. Oil should be lled to the level of about 3/16 above the inner cylinder as seen from the oil ller hole. If low, add oil as needed. Re-install oil ller plug. The jack is now ready to use.LUBRICATION Add lubricating oil to all moving parts as needed.

PREVENTING RUST Check ram and pump plunger every few months for any signs of rust or corrosion. Clean as needed by wiping with an oily cloth. When not in use, ALWAYS store jack with saddle lowered all the way down.

ANNUAL INSPECTIONTo ensure that it is in optimum condition, annual inspection of the jack at a Sears Service Center is recommended.

REPLACING OIL To drain oil, remove oil ller screw and open release valve. Turn jack over and drain old oil out through the oil ller hole. Note: Dispose of hydraulic oil in accordance with local regulations. Rell with new oil through the oil ller hole. DO NOT allow dirt or foreign material to enter the hydraulic system when lling. After relling, remove any air from the hydraulic system by opening the release valve and rapidly pumping the jack handle several times. Re-install oil ller screw and the jack are ready to use.

OPERATING INSTRUCTIONS

Lifting1. Place vehicle in park, with emergency brake on and wheels securely chocked to prevent inadvertent vehicle movement.2. Locate and close release valve by turning handle clockwise until firm resistance is felt to further thread engagement. Center jack saddle under proper lift point.3. Insert handle into handle sleeve and pump to contact lift point. Verify the lift point, then pump the handle until load reaches desired height.4. Transfer the load immediately to a pair of appropriately rated jack stands.

Lowering1.Raise load high enough to clear the jack stands; then carefully remove jack stands (always used in pairs).2.Slowly turn the handle counter-clockwise, but no more than 1/2 full turn. If the load fails to lower: a. Use another jack to raise the vehicle high enough to reinstall jack stands. b. Remove the affected jack and then the stands. c. Using the other jack, lower the load by turning the operating handle counter-clockwise, but no more than 1/2 full turn.3.After removing jack from under the load, push saddle down to reduce ram exposure to rust and contamination.

APPENDIX CBILL OF MATERIALSQuantityUnitNames and DescriptionsUnit CostTotal Cost1PcHydraulic Jack99599521KilosSteel Plate (w/ cutting)340034001PcSlider Guide Fabrication100810081PcTransmission Pad Fabrication9009002PcsSolid Wheel2254504Pcs1/2 Nuts3121PcTubeless Pipe40401Pc6 x 32 Steel Plate6006001PcLink Fabrication2832831Pc5 x 10 Steel Plate2002001PcBracket Fabrication2662662PcsBull Custer531062Pcs7/16 x 1 1/2 Stud Bolt10202Pcs7/6 Nuts36Total:Php. 7986Php. 8286APPENDIX DTOOLS AND EQUIPMENT

Tools and EquipmentFunctiona. Steel SquareUsed to measure the proper angle of the metal.b. Box end WrenchUsed to tightening hexagonal nuts and volts.c. Open end WrenchUsed to tightening square nuts and volts.d. HacksawUsed for cutting metals.e. Electric Arc Welding MachineUsed for joining metal by means of welding.f. Electric DrillUsed for drilling holes.g. Steel RollUsed to measure the length of the metal.APPENDIX EPARTS AND FUNCTION OF THE MULTI FEATURE AUTOMOTIVE JACK

PartsFunction1. Hydraulic Jack Used to lift heavy loads or apply great forces.2. BracketSupport the sliding guide 3. Sliding GuideTo guide the lifting arm up and down movement.4. Lifting ArmTo lift loads up and down movement.5. LinkTo support the lifting arm.6. Saddle CarrierTo hold the saddle pad and transmission pad.7. Saddle PadPad used to loft deferential axle and car body.8. Tension SpringUsed to lock the axles.9. Bolt and NutTo fasten a stack of parts.10. HandleTo held the piston pump.APPENDIX FCONSTRUCTION TIME FRAME

ACTIVITIESNUMBER OF DAYS1. Preparation of Materials10 days2. Construction of Frame2 days3. Set up of Assembly and parts6 days4. Try out, revision s and testing4 days5. Painting and final set up3 daysTOTAL NUMBER OF DAYS25 days