Group 26 - Pressure Washer - Revision history

MAE277 26 09: /* Executive Summary */

2009-12-16T18:40:05Z

Executive Summary

MAE277 26 09: /* References */

2009-12-16T17:33:42Z

References

MAE277 26 09 at 17:32, 16 December 2009

2009-12-16T17:32:29Z

MAE277 26 09: /* Executive Summary */

2009-12-16T16:19:06Z

Executive Summary

MAE277 26 09 at 15:58, 16 December 2009

2009-12-16T15:58:07Z

MAE277 26 09: /* Introduction */

2009-12-16T06:25:10Z

Introduction

MAE277 26 09 at 04:45, 16 December 2009

2009-12-16T04:45:36Z

MAE277 26 09: /* Gate 4: Critical Project Review */

2009-12-16T02:40:03Z

Gate 4: Critical Project Review

MAE277 26 09: /* Product Reassembly Plan */

2009-12-16T02:37:59Z

Product Reassembly Plan

MAE277 26 09: /* Product Reassembly Plan */

2009-12-11T04:03:58Z

Product Reassembly Plan

@@ Line 11: / Line 11: @@
 this dissection and analysis is detailed in this wiki page.
-Gate 1: Request for Proposal. This gate consists of the Work Proposal, in which we plan out our analysis. The
+Gate 1: Request for Proposal. This gate consists of the work proposal, in which we plan out our analysis, the
-Management Proposal, in which we lay out the management of our group. And the Initial Product Assessment where we
+management proposal, in which we lay out the management of our group, and the initial product assessment, where we
 analyze our product before dissecting it.
-Gate 2: Preliminary Design Review. For this gate the product was disassembled. In this gate we had Causes for
+Gate 2: Preliminary Design Review. For this gate, the product was disassembled. For this portion of the project, we had causes for
-Corrective Action where we asses our work and management plans. We also provide a Product Dissection Plan which
+corrective action, where we assess our work and management plans. We also provide a product dissection plan which
 consists of step by step instructions on how the engine was disassembled.
-Gate 3: Coordination Review. In the Component Summary we list all the different components of the engine including
+Gate 3: Coordination Review. In the component summary, we list all of the components of the engine including
-their function composition and manufacturing. As well we provide three Design Revisions which we believe would
+their functions, compositions, and manufacturing.  We provide three Design Revisions which we believe would
-improve the product. A solid Model of a section of the engine is included, as well as an analysis of a specific
+improve the product as well. A solid model of a section of the engine is included, in addition to an analysis of a specific
 section.
 Gate 4: Product Reassembly Plan. In this gate we describe the reassembly of our engine.
-Gate 5: Delivery. For this gate this Wiki page was completed as well as a Compliance Matrix. Our group also
+Gate 5: Delivery. For this gate this wiki page was completed as well as a compliance matrix. Our group also
 presented our dissection and analysis to the rest of the class.
-We were successful in disassembling and reassembling our engine as well as anylizing it with only minor issues. The
+We were successful in disassembling and reassembling our engine as well as analyzing it with only minor issues. The details of our work can be found below.
-−
 details of our work can be found below.
 == Gate 1: Request for Proposal ==

@@ Line 53: / Line 53: @@
 [[Product Reassembly Plan for Group 26|Product Reassembly Plan]]<br>
 ==Gate 5: Delivery ==
 [[References for Group 26|References]]<br>

@@ Line 54: / Line 54: @@
 ==Gate 5: Delivery ==
 ===References===
 The references were used during the Reverse Engineering Design Project to help the group gain a better understanding of the engine and its components.
 *http://ipl.ordertree.com/ipl/742/870370_Manual_Eng.pdf ---Snap-on manual for pressure washer

@@ Line 9: / Line 9: @@
 For our dissection Group 26, in conjunction with group 25 received a power washer. Group 26 dissected the engine and
-this dissection and analysis is detailed in this wikki page.
+this dissection and analysis is detailed in this wiki page.
 Gate 1: Request for Proposal. This gate consists of the Work Proposal, in which we plan out our analysis. The
-Management Proposal, in which we lay out the management of our group. And the Initial Product Assesment where we
+Management Proposal, in which we lay out the management of our group. And the Initial Product Assessment where we
 analyze our product before dissecting it.
-Gate 2: Preliminary Design Review. For this gate the product was dissasembled. In this gate we had Causes for
+Gate 2: Preliminary Design Review. For this gate the product was disassembled. In this gate we had Causes for
 Corrective Action where we asses our work and management plans. We also provide a Product Dissection Plan which
-consists of step by step instructions on how the engine was dissasembled.
+consists of step by step instructions on how the engine was disassembled.
-Gate 3: Coordination Review. In the Componenet Summary we list all the different components of the engine including
+Gate 3: Coordination Review. In the Component Summary we list all the different components of the engine including
 their function composition and manufacturing. As well we provide three Design Revisions which we believe would
 improve the product. A solid Model of a section of the engine is included, as well as an analysis of a specific
@@ Line 26: / Line 26: @@
 Gate 4: Product Reassembly Plan. In this gate we describe the reassembly of our engine.
-Gate 5: Delivery. For this gate this Wikki page was completed as well as a Compliance Matrix. Our group also
+Gate 5: Delivery. For this gate this Wiki page was completed as well as a Compliance Matrix. Our group also
 presented our dissection and analysis to the rest of the class.
-We were sucessful in dissasembling and reassembling our engine as well as anyalizing it with only minor issues. The
+We were successful in disassembling and reassembling our engine as well as anylizing it with only minor issues. The
 details of our work can be found below.

← Older revision		Revision as of 15:58, 16 December 2009
Line 5:		Line 5:

	Groups 25 and 26 were assigned a pressure washer. Rather than share the entire product between two groups, the product was divided into two. Group 25 is analyzing the compressor while group 26 analyzes the engine.		Groups 25 and 26 were assigned a pressure washer. Rather than share the entire product between two groups, the product was divided into two. Group 25 is analyzing the compressor while group 26 analyzes the engine.
		+
		+	== Executive Summary ==
		+
		+	For our dissection Group 26, in conjunction with group 25 received a power washer. Group 26 dissected the engine and
		+	this dissection and analysis is detailed in this wikki page.
		+
		+	Gate 1: Request for Proposal. This gate consists of the Work Proposal, in which we plan out our analysis. The
		+	Management Proposal, in which we lay out the management of our group. And the Initial Product Assesment where we
		+	analyze our product before dissecting it.
		+
		+	Gate 2: Preliminary Design Review. For this gate the product was dissasembled. In this gate we had Causes for
		+	Corrective Action where we asses our work and management plans. We also provide a Product Dissection Plan which
		+	consists of step by step instructions on how the engine was dissasembled.
		+
		+	Gate 3: Coordination Review. In the Componenet Summary we list all the different components of the engine including
		+	their function composition and manufacturing. As well we provide three Design Revisions which we believe would
		+	improve the product. A solid Model of a section of the engine is included, as well as an analysis of a specific
		+	section.
		+
		+	Gate 4: Product Reassembly Plan. In this gate we describe the reassembly of our engine.
		+
		+	Gate 5: Delivery. For this gate this Wikki page was completed as well as a Compliance Matrix. Our group also
		+	presented our dissection and analysis to the rest of the class.
		+
		+	We were sucessful in dissasembling and reassembling our engine as well as anyalizing it with only minor issues. The
		+
		+	details of our work can be found below.

	== Gate 1: Request for Proposal ==		== Gate 1: Request for Proposal ==

@@ Line 2: / Line 2: @@
 == Introduction ==
-A requirement for MAE277, taught by Erich Devendorf, the Reverse Engineering Project is designed to help students familiarize themselves with the assembly of a product.  Over the course of the semester, the students will work on five gates which will showcase the ongoing analysis of their products.  This project will reinforce key skills that engineers utilize everyday.
+MAE277 is a requirement for Aerospace and Mechanical Engineering at the University at Buffalo, taught by Erich Devendorf.  The main purpose of this course is to familiarize students with design processes and methods.  The Reverse Engineering Project is a prime example of what they should learn from the class.  Throughout the project, students will learn how products are assembled by disassembling a specific product and analyzing its components. Over the length of the semester, students will work on five gates which will showcase the ongoing analysis of their products and test their knowledge of their products’ designs.  It will reinforce key skills that engineers utilize daily.
-Groups 25 and 26 were assigned a pressure washer.  Rather than share entire product between two groups, the product was divided into two, with group 25 analyzing the compressor and with group 26 analyzing the engine.
+Groups 25 and 26 were assigned a pressure washer. Rather than share the entire product between two groups, the product was divided into two.  Group 25 is analyzing the compressor while group 26 analyzes the engine.
 == Gate 1: Request for Proposal ==

← Older revision		Revision as of 04:45, 16 December 2009
Line 25:		Line 25:
	== Gate 4: Critical Project Review ==		== Gate 4: Critical Project Review ==
	[[Product Reassembly Plan for Group 26\|Product Reassembly Plan]]<br>		[[Product Reassembly Plan for Group 26\|Product Reassembly Plan]]<br>
		+	==Gate 5: Delivery ==
		+	===References===
		+	The references were used during the Reverse Engineering Design Project to help the group gain a better understanding of the engine and its components.
		+	*http://ipl.ordertree.com/ipl/742/870370_Manual_Eng.pdf ---Snap-on manual for pressure washer
		+	*http://www.patentstorm.us/patents/5461776/description.html ---- for piston rings
		+	*http://en.wikipedia.org/wiki/Manufacturing ---- manufacturing in general
		+	*http://en.wikipedia.org/wiki/Metalworking ---- reference manufacturing processes to certain materials

← Older revision		Revision as of 02:40, 16 December 2009
Line 24:		Line 24:

	== Gate 4: Critical Project Review ==		== Gate 4: Critical Project Review ==
−	~~===Product Reassembly Plan===~~
	[[Product Reassembly Plan for Group 26\|Product Reassembly Plan]]<br>		[[Product Reassembly Plan for Group 26\|Product Reassembly Plan]]<br>
−	~~The process for reassembling the pressure washer is almost the same process as disassembling although it in reverse. If one can disassemble it, one can reassemble without much hassle.~~
−	~~:{\| class="wikitable" style="text-align:center; height:150px; width:800px" border="1"~~
−	\|-
−	~~\| '''Step #''' \|\| '''Process''' \|\| '''Tools Necessary''' \|\| '''Difficulty''' \|\| '''Image'''~~
−	\|-
−	~~\| 1 \|\| Attach the crank shaft and then the flywheel to the engine. \|\| None \|\| 1 \|\| [[Image:Group26 007.jpg\|100px]]~~
−	\|-
−	~~\| 2 \|\| Affix the metal guard and the plastic cover to the flywheel. \|\| None \|\| 1 \|\|~~
−	\|-
−	~~\| 3 \|\| Connect the flywheel to the crankshaft by attaching the 22mm nut located on the outside of the engine. \|\| 22mm socket wrench \|\| 1 \|\| [[Image:Group26_26.jpg\|100px]]~~
−	\|-
−	~~\| 4 \|\| Slide the piston into the engine from the top, into the crankshaft. Attach the piston to the crank by attaching two 10mm bolts. \|\| 10mm socket wrench \|\| 2 \|\|~~
−	\|-
−	~~\| 5 \|\| There are two lifters that connect to the rods; put in them into the engine directly above the camshaft. \|\| None \|\| 2 \|\|~~
−	\|-
−	~~\| 6 \|\| Slide the cam shaft into the engine. \|\| None \|\| 1 \|\|~~
−	\|-
−	~~\| 7 \|\| Put on the engine cover after attaching its gasket. \|\| None \|\| 1 \|\|~~
−	\|-
−	~~\| 8 \|\| Attach six 10mm bolts to the engine cover to connect it to the engine. \|\| 10mm socket wrench \|\| 2 \|\| [[Image:Group26_31.jpg\|100px]]~~
−	\|-
−	~~\| 9 \|\| Connect the valves and the rods to the head. \|\| None \|\| 3 \|\|~~
−	\|-
−	~~\| 10 \|\| Attach the valve springs by pushing down on their spots and affixing them to the valve. \|\| None \|\| 2 \|\|~~
−	\|-
−	~~\| 11 \|\| Make sure that one end of the rocker arm is connected to the rod and the other end is resting on the valve spring. \|\| None \|\| 1 \|\| [[Image:Group26_29.jpg\|100px]]~~
−	\|-
−	~~\| 12 \|\| Connect the rocker arm. \|\| 10mm socket wrench \|\| 1 \|\|~~
−	\|-
−	~~\| 13 \|\| Attach the head to the engine. \|\| None \|\| 1 \|\|~~
−	\|-
−	~~\| 14 \|\| Attach four 12mm bolts to connect the head to the engine (There are two places located inside the head and two places located outside of the head). \|\| 12mm socket wrench \|\| 1 \|\|~~
−	\|-
−	~~\| 15 \|\| Put on the valve cover after attaching its gasket. \|\| None \|\| 1 \|\|~~
−	\|-
−	~~\| 16 \|\| Attach four 8mm bolts to connect the valve cover to the top of the engine. \|\| 8mm socket wrench \|\| 1 \|\|~~
−	\|-
−	~~\| 17 \|\| Attach two 8mm bolts to connect the heat shield to the side of the engine. \|\| 8mm socket wrench \|\| 1 \|\|~~
−	\|-
−	~~\| 18 \|\| Slide the gaskets, the carburetor, and air cleaner onto the studded bolts. \|\| None \|\| 1 \|\| [[Image:Group26_9.jpg\|100px]]~~
−	\|-
−	~~\| 19 \|\| Attach two 10mm bolts to connect the air cleaner, the carburetor, and gaskets to the intake manifold. \|\| 10mm socket wrench \|\| 1 \|\| [[Image:Group26 006.jpg\|100px]]~~
−	\|-
−	~~\| 20 \|\| Slide the gasket and exhaust onto the studded bolts. \|\| None \|\| 1 \|\| [[Image:Group26_11.jpg\|100px]]~~
−	\|-
−	~~\| 21 \|\| Attach two 13mm nuts to connect the exhaust to the engine. \|\| 13mm socket wrench \|\| 1 \|\|~~
−	\|-
−	~~\| 22 \|\| Connect the springs that are attached to the carburetor. \|\| None \|\| 1 \|\| [[Image:Group26 005.jpg\|100px]]~~
−	\|-
−	~~\| 23 \|\| Put on the fly wheel shield to the engine and attach four 8mm bolts. \|\| 8mm socket wrench \|\| 1 \|\| [[Image:Group26_20.jpg\|100px]]~~
−	\|-
−	~~\| 24 \|\| Reconnect the electrical wiring that is connected to the spark plug, sensor in the engine, and the power switch. \|\| None \|\| 1 \|\|~~
−	\|-
−	~~\| 25 \|\| Attach the hose by squeezing the pressure clamp and placing it back onto its spout. \|\| None (pliers are optional) \|\| 2 \|\| [[Image:Group26_3.jpg\|100px]]~~
−	\|-
−	~~\| 26 \|\| Attach the 8mm bolt to the gas tank. \|\| 8mm socket wrench \|\| 1 \|\| [[Image:Group26_21.jpg\|100px]]~~
−	\|-
−	~~\| 27 \|\| Attach two 10mm bolts on the gas tank. \|\| 10 mm socket wrench \|\| 1 \|\|~~
−	\|-
−	~~\| 28 \|\| Attach the engine to the compressor. \|\| N/A \|\| 2 \|\| [[Image:Group 26 001.jpg\|100px]]~~
−	\|-
−	~~\| 29 \|\| Affix the engine and the compressor to the power washer using the remaining bolts. \|\| 10mm socket wrench \|\| 1 \|\| [[Image:Group26 008.jpg\|100px]]~~
−	\|}
−
−	~~'''Does your product run the same as before you dis-assembled it?'''~~
−
−	*After re-assembly the engine continues to move with hand cranking as it did when we received it. There are some minor issues which would prevent it from running at this time. Damage to several gaskets (which appeared to be aged to begin with) and a lack of oil which was removed and disposed of during dis-assembly. As well several hoses were misplaced. Getting the product into a working state should be as simple as adding new oil into it, new gaskets and replacement hoses.
−
−	~~'''What were the differences between the disassembly/reassembly processes?'''~~
−
−	*The disassembly/reassembly processes were mostly the same for our group. When the product was being disassembled, our members took precaution to write down the correct sequence of events if they made any mistakes so that others would not have the same problems.
−
−	*Almost the same set of tools was used during the reassembly process. The only tool that was not needed was the rubber mallet. The tools necessary are a basic metric socket set (only the 8mm, 10mm, 12mm, 13mm, and 22mm sockets are needed), and open-end wrenches. The optional pair of pliers can also be used but the funnel is not needed any more to drain the oil from the engine.
−
−	*Our group was able to reassemble almost the entire product. The engine is reassembled and mounted back onto the frame. We are just missing a couple of hoses.
−
−	~~'''Are there any additional recommendations your group would make at the product level (operation, manufacturing, assembly, design, configuration, etc.)?'''~~
−
−	*One design change which would increase the life of the pressure washer would be to have any exposed metals either covered with plastic shielding, or coated with a highly durable paint. This would reduce rusting and other damage to the engine and washer in general, extending its operational lifetime. This would require a fairly minimal cost increase weighed against a good potential lengthening of the products life.
−
−	*During dis-assembly of the product, we noticed that several of the gaskets were in poor condition. A sturdier material for the gaskets may be in order, as well as a slight increase in the width of walls to better prevent them falling apart. Again this would increase costs slightly, but should also improve the functional life of the product.

@@ Line 25: / Line 25: @@
 == Gate 4: Critical Project Review ==
 ===Product Reassembly Plan===
 The process for reassembling the pressure washer is almost the same process as disassembling although it in reverse.  If one can disassemble it, one can reassemble without much hassle.
 :{| class="wikitable" style="text-align:center; height:150px; width:800px" border="1"

@@ Line 86: / Line 86: @@
 | 28 || Attach the engine to the compressor. || N/A || 2 || [[Image:Group 26 001.jpg|100px]]
 |-
-| 29 || Affix the engine and the compressor to the power washer using the remaining bolts. || 10mm socket wrench || 1 ||
+| 29 || Affix the engine and the compressor to the power washer using the remaining bolts. || 10mm socket wrench || 1 || [[Image:Group26 008.jpg|100px]]
 |}