Product Dissection Instructions -(Group 10)
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Gate 2 - Product Dissection (Group 10)
Dissasemboly Difficult Scale-(Group 10)
Introduction
Here we provide a step by step process describing how our product was dissected. This includes the tools we used and how each part was removed and also includes challenges we faced during dissection process steps and a description of how they were overcome. Using our outline an individual not familiar with our product should be able to successfully disassemble the snow blower. Consider what information is required to achieve this, and how best to communicate this information.
The overall dissection of our project happened in three stages. As a group we started by taking apart the Snow blower's drive control system which connects to both the Engine subsystem and the Auger and Linear Drive subsystem. This step is located in the List one of the directions because these controls are associated more with the engine and are required to be removed for more meaningful engine work. Having two directions list was also created to limit a lengthy directions list for someone whom is only taking apart one particular subsystem(s) which the case usually is. The list of instructions here is meant to be complimented by the parts list to add both clarity and an element of simplicity to our directions. Each step also gives a Difficulty scale rating which can be explained on the Dissasemboly Difficult Scale-(Group 10) page, this is meant to give someone whom is disassembling our product an idea of how complicated each step is going to be.
Directions List 1
| Step number | Parts involved | Directions | Difficulty | Pictures |
| #1 | Control Panel Cover. Dash Cover Control Bolts. | Using a Philips-head screwdriver, attach the head to the screw and turn counterclockwise to unscrew the four screw’s (Part #1) located on the sides on the cover. There are two bolts on each side of the Control Panel Cover(Part #9) | 2 | 
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| #2 | Control Panel. Cover. Dash Cover. Mounting Bolts. | Using a 7/16 wrench, fit the wrench on the nut, located on the underside of the cover, and turn clockwise to loosen and unscrew the nut, and then remove the screw(Part #2) which was attached to it. Again there are two screws on each side on the Control Panel Cover(Part #9) | 2 | 
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| #3 | Control Nobs. Auger and Drive. Control Assembly. Engine Throttle. Control Assembly | The Control Nobs (Part #3) come in the shape of a ball and are red. First remove the two Control Nobs located on the Auger and Drive Assembly by rotating them counterclockwise. Remove the Control Nob on the Engine Throttle Control simple by pulling it out. | 1 | 
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| #4 | Auger Drive. Linkage Pin. Auger and Drive. Control Assembly | Using a needle nosed plyers, straighten the pin(Part #4) which is bent on one side, and then pull on the opposite side so that the pin slides out. Then simply slide the rod out, disconnecting the two pieces. | 2 | 
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| #5 | Wheel Drive. Linkage Arm Pin. Auger and Drive Control Assembly | Again, using a needle nosed plyer, straighten the pin (Part #6) which is bent on one side, and then pull the opposite side so that the pin slides out. Then simply slide the rod out, disconnecting the two pieces. | 2 | 
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| #6 | Shoot Turning Control. Leaver with pin washer. Control Panel Cover | Again, using a needle nosed plyer, straighten the pin toward the top of the rod (Part #5) and pull the opposite side so that the pin slides out. Then slide the rod out, disconnecting the two pieces. Then slide the top of the rod with the rubber around it through the hole located on the Control Panel Cover (Part #9). | 2 | 
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| #7 | Control Panel Cover | Once all the leaver and rods and disconnected from the Control Panel Cover (Part #9) simply pick the Control Panel Cover off of the handles. | 1 | 
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| #8 | Auger and Drive Control Assembly | With the Control Panel Cover (Part #9) being off simple remove this assembly from under the Control Panel Cover | 1 | 
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| #9 | Engine Throttle Control Assembly | Just like the previous step, the Engine Throttle Control Assembly slides right off and simple remove it from under the assembly. | 1 | 
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| #10 | Handle Covers | Located on the handles (Part #104), simply use your force to pull these off. | 2 | 
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| #11 | Safety Stop Assembly | Using a 7/16 wrench, fit the wrench on the nut and turn it counter clockwise to loosen and unscrew the nut . The simply remove the screw and the handle also freely comes off. | 2 | 
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| #12 | Engine Cover Right Side, Engine Cover Casing Top Screw | Using a Flat-Head screwdriver, attach it the screw (Part #14)located on top of the right Engine Cover (Part#16) and turn it counterclockwise to loosen and unscrew the screw. | 2 | 
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| #13 | Engine Cover Right Side, Primer Button Mounting Screws | Using a Philips head screwdriver, remove the screws (Part #15)located at the side of the engine by placing the screwdriver on the screws and turning counterclockwise. | 2 | 
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| #14 | Engine Cover Right Side, Engine Cover Casing, Front Facing screw | Using a Philips head screwdriver, remove the screw (Part #13) on the front side of the right Engine Cover (Part #16) by placing the screwdriver on the screws and turning them clockwise. | 2 | 
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| #15 | Engine Cover Right Side | Once all the screws have been removed, simply remove the engine cover my sliding it off. | 1 | 
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| #16 | Engine Electric Start Button Mounting Screws | Using a Philips head screwdriver, remove the screws (Part #17) on the Engine Electric Start Button by placing the screwdriver on the screw and turning them clockwise. The Electric Start with then come off but still be attached to the motor. | 2 | 
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| #17 | Pulley Housing Bolts | Using a 11mm wrench, remove the two bolts on the yellow Pulley Housing Cover (Part #18) by fitting the wrench onto the bolt and turning counterclockwise. | 2 | 
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| #18 | Pulley Housing Cover | Once the bolts are removed simply pull up the housing cover and it comes right off. | 1 | 
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| #19 | Engine Mounting Bolts on Linear Drive Box, Engine Mounting Plate | Using a 7/16 wrench, remove the bolts (Part #20) which connect the Engine Mountain Plate (Part#46) to the Linear Drive Box (Part #118). Do this by fitting the wrench into the bolt and turning it counter clockwise. | 2 | 
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| #20 | Engine Block | Using force pick up the engine block (Part #49) with other components attached to it, off of the Linear Drive Box (Part #118) and place it somewhere for further disassembly. | 2 | 
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| #21 | Gas Tank Mounting Bolts, Top and Bottom Gas Mounting Plates | Using a 10mm wrench, remove the four bolts (Part #21) which connect both the Top and the Bottom Gas Tank Mountain Plates (Part #25 and #26) by fitting in a wrench and turning the wrench counterclockwise. Since these bolts are exposed to the surface, rust will form over time and may make them harder to unscrew. Additional force or tools may have to be used. | 3 | 
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| #22 | Bottom Gas Tank Mounting Plate Bolt | Using a 11mm wrench, remove this bolt located under the Engine Gas Tank (Part #24) by fitting the wrench on it and turning it counter clockwise. | 2 | 
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| #23 | Engine Gas Tank | Once the Mounting plate bolts (Parts #23, #21) are removed, simply detach the Engine Gas Tank with the Top and Bottom Mounting Plates (Parts #25, #26) around it. Then pull the fuel line off simply by using force to pull it off. | 2 | 
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| #24 | Top Gas Tank Mounting Plate | Turn the cap on the gas tank counterclockwise, and simply take the top mounting plate off of the gas tank then put the cap back on the gas tank by turning it clockwise. | 1 | 
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| #25 | Bottom Gas Tank Mounting Plate | This piece should simply come apart or fall off once all the bolts are removed. | 1 | 
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| #26 | Header Bolts | Using a 12mm wrench, remove the Header bolts (Part #23) which connects the header to the engine block (Part #49) by fitting the wrench on the bolt and turning it counterclockwise. These bolts are also exposed to the surface and will form rust over time and may take additional force or tools to unscrew. | 3 | 
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| #27 | Spark Plug | Using a 21mm Socket Wrench, unscrew the Spark Plug (Part #22) by fitting in a long 21mm socket and turning the spark plug counterclockwise. | 2 | 
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| #28 | Top Engine Heat Shield Plate | Since the bolts were already removed in previous steps, simply pick the plate off of the header. | 1 | 
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| #29 | Pull Start Mounting Bolts | Using a 12mm Socket wrench, remove the bolts (Part #29) by fitting the socket wrench onto the bolts and turning counterclockwise. | 2 | 
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| #30 | Pull Start with Pull Start Cover | Once the bolts are removed these two pieces simply come off of the engine and also easily come apart. | 1 | 
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| #31 | Large Heat Cover Mounting Bolts | Using a 11m wrench, remove the remaining bolts (Part #31) on the heat cover, by fitting the wrench onto the bolt and turning it counterclockwise. | 2 | 
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| #32 | Large Heat Guard | With all the bolts holding the Large heat guard removed, this piece simply slides off. | 1 | 
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| #33 | Heat Sink Side Plate Bolts | Using a 11m wrench, remove the two bolts (Part #34) which hold the side plate, by fitting the wrench on them and turning it counterclockwise | 2 | 
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| #34 | Heat Sink Side Plate | Once the bolts are removed in the previous step this piece simply falls off. | 1 | 
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| #35 | Header | Since all the bolts was removed in previous steps, simply pull the header off. | 1 | 
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| #36 | Head Gasket | Once the header is off, this piece is found under it and you may simply just pick it up off the engine block. | 1 | 
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| #37 | Muffler Mounting Screws | Using a Philips head screwdriver, remove the screws (Part #37) by putting in the head of the screwdriver in the screw and turning it counterclockwise. | 2 | 
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| #38 | Muffler | Once the bolts (Part #37) are removed the Muffler is simply taken off of the Engine | 2 | 
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| #39 | Main Engine Pulley | Using an Allen wrench loosen the grip on the 4 screws in the Main Engine Pulley (Part #38) by turning them counterclockwise, then use force to slide the main engine pulley off. | 3 | 
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| #40 | Key Stock- Main Pulley | Once the Main Engine Pulley (Part #38) is off this piece simply comes off by pulling it out of the slot on the rod it sits in. | 1 | 
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| #41 | Electric Start mounting Bolts | Using an 11m wrench, remove the bolts (Part #40) from the motor (Part #41) simply by fitting the wrench on the bolt and turning it counterclockwise. | 2 | 
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| #42 | Electric Start Motor Assembly | Once the bolts (Part #40) are removed the Electric Start Motor (Part #41) simply comes off. | 1 | 
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| #43 | Pull Start Catch | Using a 17mm socket wrench, remove the Pull Start Catch (Part #42) by fitting the wrench unto the bolt attached to the Pull Start Catch and turning it counterclockwise. | 2 | 
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| #44 | Oil Plug Bolt | Using a 7/16 wrench, remove the oil plug bolt (Part #43) by fitting on the wrench to the bolt and turning it counterclockwise. If oil exists in the engine, make sure to have an oil pan ready. | 2 | 
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| #45 | Oil Plug Nut | Using a 7/16 wrench, remove the oil plug bolt (Part #44) by fitting on the wrench to the bolt and turning it counterclockwise. If oil was removed in the previous step, then the need of an oil pan is not needed. | 2 | 
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| #46 | Engine Mounting Plate Bolts | Using a 13mm wrench, remove the bolts (Part #45) which are located under the engine block (Part #49) by fitting on the wrench and turning the bolts counterclockwise. | 2 | 
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| #47 | Engine Mounting plate | Once the bolts have been removed the Engine Mounting plate (Part #46) the plate freely comes off. | 1 | 
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| #48 | Engine Cover Mounting Bolts | Using a 10mm wrench, remove the bolts around the Engine block main cover (Part #48) by fitting the wrench on the bolt and turning it counterclockwise. | 2 | 
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| #49 | Engine block main cover | Once the bolts are removed the Engine block main cover (Part #48) should be able to come apart by pulling it off. If the cover is sealed tight other methods will be required to pry it open. One way of breaking the seal would be to use a flat head screwdriver and a hammer. Place the flat head screwdriver in the crevice and hit the screwdriver with the hammer allowing the main block cover to come apart. You may have to repeat this placing the flat head screwdriver in different crevice’s around the engine block main cover. | 4 | 
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| #50 | Engine Block Main Cover Internal Plates and Screws, Engine block main cover | Using either a flat head screwdriver or a 8mm wrench, remove the two bolts (Part #51) located next to each other in the Engine Block Main Cover, by fitting the chosen tool in the screw and turning it counterclockwise. Then simply remove the plate (Part #51) held by the screws by picking it up. | 2 | 
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| #51 | Engine Block Main Cover Internal Small Gear | Once the Internal plate (Part #51) is removed, the small gear can be simply removed by sliding it through the larger gear. | 1 | 
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| #52 | Engine Block Main Cover Internal Large Gear and Cam Shaft | The Internal Large Gear and Cam Shaft (Part #53) is also simply removed by picking it up, removing it from the slot hole it was sitting in. | 1 | 
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| #53 | Dipstick | The Dipstick (Part #54) is removed simply by rotating the handle counterclockwise allowing it to unscrew from its thread. | 1 | 
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| #54 | Piston Arm Bolts with Clip | Inside the Engine Block (Part #49) remove the two bolts (Part #67) on the Piston Arm (Part #66) which is connected to the Main Engine Shaft (Part #50) by using a ½ in wrench and fitting the wrench on the bolts and turning the wrench counterclockwise. | 3 | 
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| #55 | Piston | When the Piston arm bolts (Part #67) are removed the piston (Part #68) can be easily removed by pushing it up through the top and out its valve chamber. | 1 | 
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| #56 | Piston Arm | The Piston Arm (Part #66) is attached to the Piston ( Part #68). To separate the Piston Arm from the Piston simply take out the pin that connecting the two pieces together and simply separate them. | 2 | 
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| #57 | Fly-Wheel | Remove the Fly-Wheel (Part #63) by removing the bolt on the outside by using a 11mm wrench, placing it on the nut and turning it clockwise. Then using a hammer, beat the Main Engine Shaft (Part #50) so that if falls through the Engine Block (Part #49). Once the Main Engine Shaft flies through, the flywheel should freely fall off. | 3 | 
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| #58 | Guard Plate Bolts | Using a 12mm wrench, remove the bolts (Part #62) located on the Guard Plate (Part #61) which is behind the flywheel, by fitting the wrench on the bolts and turning the wrench counterclockwise. | 2 | 
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| #59 | Guard plate behind fly-wheel | Once the bolts (Part #62) are removed in the previous step the Guard Plate (Part #61) should freely come off. | 1 | 
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| #60 | Lower (Internal) Valves | Located inside the Engine Block (Part #49) these are simply removed by pulling them out. | 1 | 
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| #61 | Spring Chamber Screws | Using a Philips head screwdriver, remove the bolts (Part #60) from the Spring chamber cover by placing the screwdriver on the bolt and turning it counterclockwise. | 2 | 
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| #62 | Spring Chamber Cover | Once the bolts (Part #60) are off simply pull the Spring Chamber Cover (Part #58) off. | 1 | 
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| #63 | Filter Box with Filter From Spring Chamber | When the Spring Chamber Cover (Part #58) is removed the Filter box is exposed and it should be removed by pulling it out. If this fails to work use a flat head screwdriver to force it out of its slot. | 3 | 
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| #64 | Valve Springs | The springs (Part #56) are connected to each by 2 caps which you must first decompress the spring and then push the cap off which is connected to the spring. One method of doing this is using a flat head screwdriver to decompress the springs. Once spring is detached from the cap the pieces can simply come out of the chamber. | 4 | 
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| #65 | Upper (Outside) Valves | These valves (Part #57) which are located on the outside and removed simply by applying force and pulling them out of the slots they sit in. | 2 | 
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| #66 | Carburetor Bolts | Use a Philips head screwdriver, remove the bolts (Part #70) from the carburetor (Part #69) by putting the screwdriver on the screws and turning it counterclockwise. These screws can be screwed off at an angle which is what makes these difficult. | 3 | 
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| #67 | Carburetor | Once the bolts (Part #70) are removed the carburetor simply comes right off. | 2 | 
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| #68 | Fuel Filter Plug | Located on the bottom of the Fuel Filter Pan (Part #65) the Fuel Filter Plug (Part #64) is removed by screwing it off counterclockwise. | 2 | 
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| #69 | Fuel Filter Pan | Once the Fuel Filter Plug (Part #64) is removed the Fuel Filter Pan (Part #65) simply comes right off. | 1 | 
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Directions list 2
| Step number | Parts involved | Directions | Difficulty | Pictures |
| #1 | Linear Drive Control Exterior Mounting Bolts | Using a box wrench, attach the box side to the head of the bolt (part#1) and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt. | 2 | 
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| #2 | Linear Drive Housing Bolts | Using a 14mm box wrench, attach the box side to the head of the bolt (part#101) and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt. | 2 | 
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| #3 | Handle Mounting Bolts | Using a 14mm box wrench, attach the box side to the head of the bolt (part#122) and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt. | 1 | 
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| #4 | Worm Gear turning control | Using a box wrench, attach the box side to the head of the bolt and turn counter clockwise to loosen the bolt until it is removed. Once completed, the gear(part#4) can be removed. | 2 | 
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| #5 | Handles | Complete step #3 then the handles(part#104) are detached from the body. | 1 | |
| #6 | Linear Drive Underside Plate Mounting Screws | Using a Philips head screw driver, attach the turn the head of the screw (part#105) counter clockwise to loosen it until it is removed repeat for each screw. | 1 | 
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| #7 | Linear Drive Underside Plate | Using a box wrench, attach the box side to the head of the bolt and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt. When the bolts are removed, the bottom plate(part#106) can be removed. | 2 | |
| #8 | Linear movement Drive Pulley | Using a box wrench, attach the box side to the head of the bolt and turn counter clockwise to loosen the bolt until it is removed. When the bolt is removed the pulley(part#107) can be removed. | 1 | 
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| #9 | Wheel Mounting Bolts | Using a 14mm socket wrench, attach the socket to the head of the bolt(part#108) and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt. | 2 | 
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| #10 | Wheel Wing Nuts | Using your hands, grab and turn the wing-nut (part#109) in the counterclockwise direction until it is removed. Repeat once for other wing nut. | 1 | 
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| #11 | Wheels | Complete steps #9 & #10 and then pull the wheel (part#110) off of its axle. Repeat for both wheels. | 2 | |
| #12 | Auger Bering Mounting Bolts | Using a 7/16th box wrench, attach the box side to the head of the bolt(part#111) and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt. | 1 | 
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| #13 | Shaft to Bering Mounting Bolts | Using a box wrench, attach the box side to the head of the bolt(part#112) and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt. | 3 | 
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| #14 | Auger Drive Pulley | Using a box wrench, attach the box side to the head of the bolt and turn counter clockwise to loosen the bolt until it is removed. When the bolt is removed the pulley(part#113) can be removed. | 1 |
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| #15 | Auger Drive Belt | Once the pulley is removed in step #113, the belt (part#114) can be removed from the other pulley. | 1 | 
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| #16 | Auger Output Plate Mounting Bolt | Using a box wrench, attach the box side to the head of the bolt(part#115) and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt. | 2 | 
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| #17 | Auger Output Plate | Once step #115 is completed, the plate(part#116) can be removed. | 1 | 
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| #18 | Vertical Snow Shoot | Using a box wrench, attach the box side to the head of the bolt and turn counter clockwise to loosen the bolt until it is removed. When this is completed the chute(part#117) can be removed from the bottom chute (part#121) | 1 | 
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| #19 | Bottom chute | Using a 3/8th inch box wrench, attach the box side to the head of the bolt and turn counter clockwise while securing the corresponding nuts with a 3/8th inch wrench to loosen the bolt until it is removed. Repeat for each nut/bolt(part#120). Once this is completed, the spacers can be removed. | 3 | 
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| #20 | Gear Base of Chute | Using a box wrench, attach the box side to the head of the bolt and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt. Once this is completed the gear-base(part#122) and bottom chute(welded to bottom chute) can be removed. | 2 | 
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| #21 | Auger Blade Bolts | Using a box wrench, attach the box side to the head of the bolt(part#123) and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt. | 3 | 
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| #22 | Gear Box Bolts and Washers | Using a 12mm box wrench, attach the box side to the head of the bolt(part#124) and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt. | 2 | 
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| #23 | Gear Box Auger Shaft Grease Plug | Using a 11mm box wrench, attach the box side to the head of the plug(part#125) and turn counter clockwise to loosen the bolt until it is removed. | 3 | 
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| #24 | Oil Plug Gear Box Auger Shaft | Using a 10mm box wrench, attach the box side to the head of the plug(part#125) and turn counter clockwise to loosen the bolt until it is removed. | 1 | 
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| #25 | Auger Fan/shaft | Using a box wrench, attach the box side to the head of the bolt and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt. Once removed the fan(part#127) can be removed from the shaft and enclosure. | 3 | 
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| #26 | Stabilizing Rod with Pins | With needle nose pliers to straighten out the pin(part#129) and then pull it out by the loop. Repeat for each pin. Once this is completed, the rod(part#129) can be removed from the enclosure. | 1 | 
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| #27 | Nuts and Bolts Set | Using a box wrench, attach the box side to the head of the bolt and turn counter clockwise to loosen the bolt until it is removed. Once completed the small gear can be removed from the case. | 2 | |
| #28 | Clutch | Using a box wrench, attach the box side to the head of the bolt and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt. Once this is completed, the clutch(part#131) can be removed | 2 | 
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| #29 | Small Belt Pulleys/ nuts and bolts | Using a box wrench, attach the box side to the head of the bolt and turn counter clockwise while holding the corresponding nut with a wrench to loosen the bolt until it is removed. Repeat for each bolt/nut. Once this is complete, the pulleys(part#132) can be removed. | 3 | 
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| #30 | Rpm Disk Control | Using a box wrench, attach the box side to the head of the bolt and turn counter clockwise to loosen the bolt until it is removed. Using needle nose pliers straighten and remove the pins by their loop. Once complete, the control device(part#133) can be removed from the enclosure. | 2 | 
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| #31 | Nuts and Machine Screws for Differential | Using a 3/8th wrench and corresponding flathead screwdriver, attach the box side to the nut and the screwdriver to the head of the screw(part#134) and turn counter clockwise to loosen the nut until it is removed. | 2 | 
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| #32 | Horizontal Disk | Using a box wrench, attach the box side to the head of the bolt and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt. Once this is complete the disk(part#135) can be carefully pulled out of place(it is a snug fit in tight quarters) and removed from the enclosure. | 3 | 
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| #33 | Spring | Using needle nose pliers, pull the hook end of the spring off of the interior wall and put it through the corresponding hole. Once this is complete, the other end of the spring(part#136) can be removed and the entire spring can be removed from the enclosure. | 1 | 
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| #34 | Vertical Disk and Assembly | Using a box wrench, attach the box side to the head of the bolt and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt and secure nut with a wrench as needed. Once this is complete, pull the shaft inward and away from the wall. This will allow the system(part#137) to be removed from the enclosure. | 5 | 
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| #35 | Metal Plate Gear Chain | Once the vertical disk assembly (part#137) is removed, the chain (part#138) can be removed from the other sprocket and out of the enclosure. | 1 | 
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| #36 | Auger Blades | Using a box wrench, attach the box side to the head of the bolt and turn counter clockwise to loosen the bolt until it is removed. Repeat for each bolt. Once the bolts and auger fan shaft(part#127) are removed, the auger blades(part#139) can be removed. | 2 | 
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