Build Guide Ring It Up!
Build GuideRing it Up!Rev 1 9/8/20121 FIRST Tech Challenge 2012
Read through all the instructions before you begin to build!This guide is intended as instructions on building the field elements for the Ring it Up! game. Field electronics and game playsetup will be described in separate documents.Revision HistoryRevisionDate19/8/2012Rev 1 9/8/2012DescriptionPublic Release2 FIRST Tech Challenge 2012
PVC Required: All PVC is Schedule 40ItemDescriptionCenter RackAssembly(1 Per Field)Item QTYDispenserAssembly(4 Per Field)Item QTYCorner GoalAssembly(2 Per Field)Item QTY244P11" PVC Schedule 40 Fitting: Tee-Joint4P21” PVC Schedule 40 Fitting: 90 ElbowJoint2P31” PVC Schedule 40 Fitting: 45 Joint18P41” PVC Schedule 40 Fitting: Cross Joint9P51" PVC Schedule 40 Fitting: 3-Way JointP61” PVC Schedule 40 pipe: 2” Length3P71” PVC Schedule 40 pipe: 4” Length2P81” PVC Schedule 40 pipe: 6” Length18P91” PVC Schedule 40 pipe: 9” LengthP101” PVC Schedule 40 pipe: 10” Length38P111” PVC Schedule 40 pipe: 12” Length68P121” PVC Schedule 40 pipe: 19” Length4P131/2" PVC Schedule 40 pipe: 40" LengthNote: You may substitute 1/2" om SKU: 401-010Lowes: Item 23876Home Depot: SKU # 1879252www.pvcfittingsdirect.com SKU: 406-010Lowes: Item #23870Home Depot: SKU #18798428www.pvcfittingsdirect.com SKU: 417-010Lowes: Item #23892Home Depot: SKU #1880349www.pvcfittingsdirect.com SKU: 420-010Lowes: Item # 227022www.pvcfittingsdirect.com SKU: 413-010Lowes: Item # 3154993Generally sold in 10-foot lengths. You will needapproximately 57-feet total for each field build.Buy at least 6 10' lengths of pipe.108220210116Notes20Lowes: Item #23976Home Depot: SKU #193755www.pvcfittingsdirect.com* See note below for purchasing pre-cut kit.422To be used for FlagpoleOptional PVC Cleaning Supplies (See PVC Cleaning and Cementing Tips on page 25)Household Powdered CleanserNylon scouring padsAcetoneSteel wool—grade #0000 or #003M Medium-Grade Sanding PadRubber GlovesSafety Glasses* All the PVC components listed here are available as a custom kit created specifically forthis FTC Game from www.PVCFittingsDirect.comAP-2012 Fittings and Pipe Kit (pre-cut pipe) 189.90 (SKU #Kit1 2)AP-2012 Fittings Only 79.90 (SKU #Kit 1 2a)You may still choose to purchase your PVC locally. SKU & Item numbers for Home Depotand Lowes are provided for your convenience.Rev 1 9/8/20123 FIRST Tech Challenge 2012
Hardware RequiredItemDescriptionCenter RackAssembly(1 Per Field)Item QTYDispenserAssembly(4 Per Field)Item QTYCorner GoalAssembly(2 Per Field)Item QTYFieldTotalNotesH11/2” x 36” Steel Threaded Pipe22Home Depot: SKU #349739H21/2” Pipe Floor Flange22Home Depot: SKU #817902H3** 1-1/2" x 30” Piano Hinge11Home Depot: SKU #241415H4** Wood Screws for piano hingeAs NeededAsNeededH510-32 x 2” Spade-Head Thumb Screw33McMaster-Carr: Part Number: 96966A275H610-32 Zinc-Plated Wing Nut33McMaster-Carr: Part Number: 90866A111H7#10 Flat Washer66McMaster-Carr: Part Number: 90107A011H81/2” #8 Zinc-Plated Wood Screw88McMaster-Carr: Part Number: 90031A194H913/64" Drill BitProvided with Hinge (Check length to ensurescrews won’t poke through the top of thewood. Purchase shorter screws if necessary).1Wood RequiredItemDescriptionCenter RackAssembly(1 Per Field)Item QTYDispenserAssembly(4 Per Field)Item QTYCorner GoalAssembly(2 Per Field)Item QTYFieldTotalNotesW1 2' x 4' x 1/2” Plywood Handy Panel** (OPTION: Use solid 4’x 4’ x 1/2” )22Wood should be flat. Use Better to Bestgrade. Do not use warped or rough andflawed wood.W2 Wood Craft Door Hanger (For d-door-hanger/W2 Note: If you are unable to obtainthese pre-made hangers, you mayuse a small piece of 1/4" wood tomake them. Directions are includedin the angers-3-125/dp/B0044S8AJW/ref pd sim sbs ac 1** If you choose to use 4’ x 4’ for the base, you will not need the piano hinge. See page 9.Gaffer’s Tape RequiredItemDescriptionCenter RackAssembly(1 Per Field)QTYDispenserAssembly(4 Per Field)QTYCorner GoalAssembly(2 Per Field)QTYFieldNotesT11” White Gaffer’s TapeT22” Red Gaffer’s TapeAs NeededAsNeededAswww.findtape.com (Pro-Gaff Gaffers Tape)NeededT32” Electric Blue Gaffer’s TapeAs NeededAsNeededAswww.findtape.com (Pro-Gaff Gaffers Tape)NeededRev 1 9/8/2012As NeededTotalwww.findtape.com (Pro-Gaff Gaffers Tape)4 FIRST Tech Challenge 2012
Field RequirementsItemDescriptionCenter RackAssembly(1 Per Field)Item QTYDispenserAssembly(4 Per Field)Item QTYCorner GoalAssembly(2 Per Field)Item QTYFieldTotalNotesF1FTC Field Perimeter11www.andymark.comF25/8" Gray Soft Tiles3636www.softtiles.comF3IR Beacon (Use 2 Masters)22www.hitechnic.comF4Red Rings18 Regular6 Heavy( 2 Pre-Load)26F5Blue Rings18 Regular6 Heavy( 2 Pre-Load)26Official rings designed to exactspecifications for this game must bepurchased from:www.AndyMark.comPre-load rings are prepared using 2012.htm2Tools and Other RequirementsItemDescriptionCenter RackAssembly(1 Per Field)Item QTYDispenserAssembly(4 Per Field)Item QTYAs NeededM1PVC CementAs NeededM2Black PaintAs NeededM3White 8 1/2" x 11" Card StockM4Clear packing tapeM5Sticky Back VelcroM61” Self-Adhesive Vinyl Letters (Black)M88" Cable TiesM99V BatteriesCorner GoalAssembly(2 Per Field)Item QTYField2As Needed1 SetAs NeededSee NoteTotalNotesAs NeededHome Depot: SKU # 212369As NeededBehr Disney Color: Mouse Ears Semi-Gloss2FlagAs NeededFor FlagAs NeededFor IR Beacon Hangers1 SetHome Depot: SKU #836277As NeededHome Depot: SKU #295648Lowes: Item #76023See Note9V battery life for the IR Beacons is about 4hours. Be sure to have enough batteries onhand at your event to ensure the beaconsperform consistently throughout thetournament.Tools to have on hand:Paint BrushElectric DrillPencilX-acto KnifeRev 1 9/8/20125 FIRST Tech Challenge 2012
Center Rack AssemblyThe center rack is assembled in these basic subsections:Top RowBottom RowACenter Rack Assembly: Top Row - Build 1a.c.P12P2Columnb.d.P12P1P2M1BCenter Rack Assembly: Bottom Row - Build 1Clean the PVC of allsmudges as much aspossible (See page 25for cleaning tips.)P1P1a.c.b.d.f.e.P12P1P12P7P7Parts Required for Bottom & Top RowsItemQtyDescriptionP14Tee-JointP22Elbow JointP724” PipeP12419” PipeM1A/RPVC CleanerA. Assemble the top row using items P1, P2 & P12.Apply PVC cement to the insides of the joints.Assemble in the recommended order shown. (a,b, c. . .)NOTE: PVC cement cures very quickly. Do each jointindividually as you install the pipes.Note: Lay the pieces flat while assembling to ensure all the angles are straight. Ensure all pipes are seated fully into the fittingsand the joints align properly as illustrated.B. Assemble the bottom row using items P1, P7, &P12. Apply PVC cement to the insides of the joints .Assemble in the recommended order shown. (a,b, c. . .)Rev 1 9/8/20126 FIRST Tech Challenge 2012
Center Rack Assembly (continued)CPeg: Build 18M1P8D Cross Peg: Build 9P3Clean the PVC of allsmudges as much aspossible (See page 25for cleaning tips.)Tip: Lay the pieces on a flat surface toensure they align properly.PegPegP4Parts Required for PegsItemQtyDescriptionP31845 JointP49Cross JointP8186” PipeM1A/RPVC CementNOTE: PVC cement cures very quickly. Do each jointindividually as you install the pipes.C. Build Pegs: Assemble 18 Pegs using items P8& P3. Apply PVC cement to the insides ofthe joints.D. Build Cross Pegs: Join 2 Pegs with item P4.Apply PVC cement to the insides of thejoints. Ensure pieces align properly asshown.Rev 1 9/8/20127 FIRST Tech Challenge 2012
Center Rack Assembly (continued)a.EColumn: Build 3P6b.P11c.d.Note: Lay the pieces flat while assembling to ensureall the angles are straight. Ensure all pipes are seated fully into the fittings and Pegs on all columnsalign properly as illustrated.P11Required Parts for ColumnItemQtyDescriptionP632” PipeP10310” PipeP11612” PipeM1A/RPVC CementE. Build a column by joining 3 Cross Pegs withitems P6 , P10 & P11. Apply PVC cement tothe insides of the joints . Assemble in therecommended order shown. (a, b, c. . .)NOTE: PVC cement cures very quickly. Doeach joint individually as you install thepipes.Rev 1 9/8/2012e.f.M1P10Clean the PVC of allsmudges as much aspossible (See page 25for cleaning tips.)8 FIRST Tech Challenge 2012
Center Rack Assembly: Base - Build 1A PaintBNOTE: If you choose to use one solid 4’ x 4’board you may skip step B, and proceed tothe next page.Install HingeH3H4W14’Position the pin portion of the hinge so that it is away from theboards and there is no gap between the boards.TIP: When installing the hinge, do not tighten the screws completelyon the first pass. Place them, then open and close the base boardschecking for gaps or warps. Tighten the screws, alternating left toright once you’ve ensured smooth motion without gaps or warps.M22’Note: Be sure to install the hinge on the bottom of the woodbase. Reserve the ‘best’ surface for the top.Required Parts for Center Assembly BaseItemQtyDescriptionW122' x 4' x 1/2” PlywoodM2A/RBlack PaintH311-1/2" x 30” Piano HingeH4A/RHinge ScrewsA. Paint all surfaces of the plywood with blackpaint. Allow ample time for the paint to drybefore continuing. 2 coats recommended.B. Lay painted plywood side by side, and installthe 30” piano hinge using the woodscrews.Rev 1 9/8/20129 FIRST Tech Challenge 2012
Center Rack Assembly: Base - Build 1 (continued)Important: Allow the paint to dry completely before attempting to apply gaffer’s tape.CT1Tape Base BoardsT1Required Parts for Center Assembly BaseItemQtyDescriptionT1A/R1” White Gaffer’s TapeImportant: Allow enough length for the tape to wrap around the edgeof the board to the underside. This will help prevent the edges frombeing lifted off the boards during game play.Split the tape at the corners to allow a clean wrap on the edge.Apply 1” White Gaffer’s Tape across the topsurface of the assembled base board. Beginwith the center stripe, placing the tape cornerto corner as shown.Use an X-acto knife to score the center line gaffer’s tape where the piano hinge will fold.Rev 1 9/8/201210 FIRST Tech Challenge 2012
Center Rack Assembly: Base - Build 1 (continued)DPlace Threaded Pipe SupportsH1H2Required Parts for Center Assembly BaseItemQtyDescriptionH121/2” x 36” Steel Threaded PipeH221/2” Pipe Floor FlangeT1A/R1” White Gaffer’s TapeET1Tip: To find an accurate placement for the pipe flanges andremaining Gaffer’s Tape:D. Insert the pipes into the flanges, then slide the Bottom rowof the Center Rack assembly onto each support and place itas shown. Draw a circle around the flanges, then movethem all aside.T1E. Place the two outer white gaffer’s tape stripes onto thebase, parallel to the middle stripe as illustrated.Rev 1 9/8/201211 FIRST Tech Challenge 2012
Center Rack Assembly: Base - Build 1 (continued)FPlace Threaded Pipe SupportsH8H2Required Parts for Center Assembly BaseItemQtyDescriptionH221/2” Pipe Floor FlangeH881/2” #8 Wood ScrewsF. Secure the flanges to the board using H8.Rev 1 9/8/201212 FIRST Tech Challenge 2012
Center Rack Assembly: SetupAAssemble Center Rack for Game Playd.b.b.c.a.Do not use cement!A. Assemble Center Racka. Using the mounted pipes for support, install the bottom row of the Center Rack assembly.b. Install the two outer Columns first, sliding them over the pipe. Ensure they are positioned with the pegs oriented at a90 to the bottom row.c. Install the center column into the bottom rack with the pegs positioned as illustrated.d. Install the top rack onto the assembly.Rev 1 9/8/201213 FIRST Tech Challenge 2012
Center Rack Assembly: Setup (continued)B Drill HolesH9Top ViewCH6H5Required Parts for Center Assembly BaseItemQtyDescriptionH53Spade-Head Thumb ScrewH63Steel Wing NutH76Flat WasherH9113/64” Drill BitH7B. Using a 13/64” drill bit, drill through the fittings,and the top 2” pipe on each column as illustrated.C. Secure all with items H5, H6 and H7 as illustrated.This provides stability for the structure, yet allows foreasy dis-assembly after the event.Rev 1 9/8/201214 FIRST Tech Challenge 2012
Center Rack Assembly: Setup (continued)DPlace Column LettersM6Required Parts for Center AssemblyItemQtyDescriptionM6A/RSelf-Adhesive Vinyl Letters (Black)D. Affix vinyl letters to the tops of each column asillustrated.Rev 1 9/8/201215 FIRST Tech Challenge 2012
Side Dispenser Assembly: Build 4P1P9P9P1P7P3P3P1P7P1P11P10P10M1Clean the PVC of allsmudges as much aspossible (See page 25for cleaning tips.)P1P11P1Parts Required (Per Assembly)ItemQtyDescriptionP16Tee-JointP3245 JointP724” PipeP929” PipeP10210” PipeP11212” PipeH9113/64” Drill BitM1A/RPVC CementABDispenser Arms: (2 per Assembly)P1P9b.a.P3A. Drill a hole at the center of each P11 pipe (fortie-wrap access during field setup).B. Assemble dispenser arms using items P3, P9 &P1. Apply PVC cement to the insides of thejoints. Assemble in the recommended ordershown. (a, b, c. . .)Rev 1 9/8/2012TIP: Lay the PVC pieces on a flat surface while assembling, to ensurethe angles remain straight.NOTE: PVC cement cures very quickly. Do each jointindividually as you install the pipes.16 FIRST Tech Challenge 2012
Side Dispenser Assembly: Build 4 (continued)CVertical Supports (2 per assembly)c.P7a.b.P1P10M1P1Clean the PVC of allsmudges as much aspossible (See page 25for cleaning tips.)DTIP: Lay the PVC pieces against afence on a flat surface whileassembling, to ensure the angles remain straight.Parts Required (Per Assembly)ItemDescriptionP1Tee-JointP74” PipeP1010” PipeM1PVC CementC. Assemble vertical supports using items P7, P10 &P1. Apply PVC cement to the insides of thejoints . Assemble in the recommended ordershown. (a, b, c. . .).D. Lay the vertical supports on a flat surface withthe Tee joints facing up. Using PVC cement, assemble the dispenser arms to the vertical supports in the positions illustrated.Rev 1 9/8/2012NOTE: PVC cement cures very quickly. Do each jointindividually as you install the pipes.17 FIRST Tech Challenge 2012
Side Dispenser Assembly: Build 4 (continued)Eb.Horizontal Supportsa.P11Note: Position the pipes with the drilledholes positioned as shown.b.a.P11NOTE: PVC cement cures very quickly. Do each jointindividually as you install the pipes.Parts RequiredItemDescriptionP1112” PipeM1PVC CementM1Clean the PVC of allsmudges as much aspossible (See page 25for cleaning tips.)E. Assemble horizontal supports using the P11pipes you drilled in step A. Apply PVC cementto the insides of the joints. Assemble in therecommended order shown. (both a’s andb’s simultaneously)Rev 1 9/8/201218 FIRST Tech Challenge 2012
Side Dispenser Assembly: Build 4 (continued)FApply Gaffer’s TapeT2T3Parts RequiredItemQtyDescriptionT2A/R2” Red Gaffer’s TapeT3A/R2” Electric Blue Gaffer’s TapeE. Apply the appropriate colored Gaffer’s tape tothe Side Dispensers on the areas indicated.Be sure to cut away the tape over the drilledaccess hole .Make 2 dispensers for each color.Rev 1 9/8/201219 FIRST Tech Challenge 2012
Corner Goal Assembly: Build 2P3P11b.a.c.Parts Required (Per Assembly)P1P8d.M1Clean the PVC of allsmudges as much aspossible (See page 25for cleaning tips.)e.h.QtyDescriptionP12Tee-JointP3145 JointP513-Way JointP816” PipeP919” PipeP11312” PipeM1A/RPVC CementApply PVC cement to the insides of the joints, and assemble the pieces by inserting the pipes into thejoints in the recommended order shown. (a, b, c. . .)Ensure the arm is positioned at a 45 angle to thebase, as shown in the TopView illustration.P9ItemNOTE: PVC cement cures very quickly. Do each jointindividually as you install the pipes.g.P5f.P11Top ViewRev 1 9/8/201220 FIRST Tech Challenge 2012
Assemble Goal Flag: Build 2Parts RequiredItemQtyDescriptionP1321/2” Pipe (or dowel)M32White Card StockM4ARClear packing tape.A. Print the flag onto the card stock using the lasttwo pages of this document. Use ‘2 sided’ print.Cut out the triangular flag.AB. Apply wide, clear packing tape to both sides ofthe flag to affix it to the pole.M3Optional: Use heat or self adhesive laminatingsheets to make the flag more durable.P13M4Rev 1 9/8/201221B FIRST Tech Challenge 2012
IR Beacon Hangers (Build 2)AMark Beacon PlacementNote: You may use a pre-made wooden door hanger, for thisassembly. These are readily available at many craft supplystores and on-line for a nominal cost. Please see thecomplete Bill of Materials for source links.Dimensions to cut your own are given on the next page.B* see noteTrimW26.5”CriticalDimensionF3* Note: Some pre-madehangers may have a notch atthe top of the hole. Be sure tomeasure from where thehanger will actually rest onthe pipe.Parts Required for IR BeaconItemQtyDescriptionF32IR Beacon MasterW22Wood HangerA. Place the IR Beacon Master onto the wooden hanger so the bottom edge of the Beacon is exactly 6.5” inches from the TOP ofthe circular cut-out. Use a pencil to markthe top and bottom of the beacon on thewood.B. Trim the excess from the bottom of thewood hanger.Rev 1 9/8/201222 FIRST Tech Challenge 2012
IR Beacon Hangers (continued)3”.25”C1.5”M51.5”R 1.25”Loop SideHook Side6.75”Parts Required for IR BeaconItemQtyDescriptionM5A/RSticky Back VelcroC. Apply adhesive Velcro to the back of the IRMaster Beacon, and to the IR BeaconHanger between the pencil marks. Placethe loop side of the Velcro onto the hanger, and the hook side on to the IR Beacon.Important: Be sure to cover the entireback surface of the IR Beacon with Velcro.Affix the IR Beacon to the Hanger.Rev 1 9/8/201223 FIRST Tech Challenge 2012
Prepare Pre-Load RingsT1F4F5Tip: Prepare a few extra autonomous rings for your event.Parts Required (Per Playing Field)ItemQtyDescriptionT1A/R1” White Gaffer’s TapeF42Red Ring (Regular)F52Blue Ring (Regular)Prepare 2 pre-load rings for each alliance usingwhite 1” Gaffer’s tape as shown. Be sure not toobscure the embossed logo on the rings.Note: Be sure you do not designate the specialheavy rings as pre-load rings.Rev 1 9/8/201224 FIRST Tech Challenge 2012
PVC Cleaning and Cementing TipsCleaning:When you purchase PVC pipe, it is likely that it will be dirty and covered with manufacturer’s markings. For best presentation atofficial competitions, it is best to clean the PVC as much as possible.Here are a few suggestions on ways clean your PVC. If you have other techniques, please feel free to share them with us.The Kitchen Sink Approach:Wipe off any loose dust with a damp rag. Then dab a little household powdered cleanser ontoa green nylon scouring pad, dampen and simply rub off the markings. Rinse with a damp rag.This method also removes most other marks and dirt without scratching the surface of thePVC.Caution: Wear rubber gloves and safety glasses. Be sure to follow the directions on thecleanser.For more difficult imprints:Soak a small chunk of fine steel wool (grade #0000 or #00) in acetone.Because the acetone dries quickly, work in short sections of 1 or 2 feet.Wipe smears quickly with a shop rag before the acetone dries.Caution: Wear rubber gloves and safety glasses. Be sure to follow thedirections on the acetone container. Work in a well ventilated area.A non-chemical alternative to cleaning the PVC:Lightly sand blemishes and imprints with a low-cost 3M sanding pad. Use medium-grade fortougher inks, fine-grade for lighter inks. You’ll find them at most hardware stores.The sanding pads conform to the pipe’s contour and will quickly remove markings with just alight pressure. Use a damp cloth to clean away dust left behind from the sanding.Cementing:Swab a light amount of glue to inside of the fitting, insert the pipe into the fitting. PVCcement dries fast, so you’ll have to be quick. Hold the fitting and pipe together for a fewseconds, then wipe off any excess glue immediately with a rag.Caution: Wear rubber gloves and safety glasses. Be sure to follow thedirections on the cement container. Work in a well ventilated area.Rev 1 9/8/201225 FIRST Tech Challenge 2012
H6 10-32 Zinc-Plated Wing Nut 3 3 McMaster-Carr: Part Number: 90866A111 H7 #10 Flat Washer 6 6 McMaster-Carr: Part Number: 90107A011 H8 1/2” #8 Zinc-Plated Wood Screw 8 8 McMaster-Carr: Part Number: 90031A194 H9 13/64" Drill
dust seal mc seal o-ring o-ring teflon o-ring o-ring snap ring dust seal mc seal o-ring o-ring retaining ring o-ring teflon ring o-ring o-ring lock-nut lh o-ring silicone (not shown) o-ring (not shown) 79543 79004 79082 79077 79079 79081 79084 79078 79007 79541 79542 79017 79009 79504 79080
Metal Seal for Banjo Fittings O7 O-Ring Face Seal Port Ends - SAE, Metric, BSPP, JIS, K4 EO/EO-2 EO-2 Sealing Ring O6 EOlastic Seal Ring O5 ISO 6149 O-Ring O4 Metric O-Ring O4 4-Bolt Flanges Metric Retaining Ring O4 JIS B2351 O-Ring O6 PLS Bonded Seal O3 Pressure Gauge Sealing Ring O8 BSPP Retaining Ring O5 BSPP O-Ring O5 EO O-Ring O8 BSPP .
12. O-ring Gland Design Friction In normal applications harder materials provide less friction than softer materi-als. However, the higher the hardness of the O-ring, above 70 Shore A, the greater the friction. This is because the compressive force at the same squeeze, is greater than with softer materials. Compound swell decreases the hard-File Size: 338KBPage Count: 31Explore furtherO-Ring Groove Design Guide & Recommendations allorings.comwww.allorings.comO-Ring Groove Design Guides Engineering Quick Referencewww.marcorubber.comMetric O-Ring Groove Design Reference Guidewww.allorings.comDynamic O-Ring Design Chart Marco Rubber & Plastics .www.marcorubber.comO-ring Design, O-ring Design Guide, O-ring Seal Design .mykin.comRecommended to you b
ring design top ring: steel, plasma moly second ring: cast iron, reverse torsional twist oil ring: flex-vent ring design top ring: steel, plasma moly second ring: martensitic ductile iron napier oil ring: flex-vent steel moly race rings.043 - .043 - 3.0mm low tension set
5801-09 universal ring retractor vaginal retractor ring, inner diameter 8” x 10 1/2” (20.3 cm x 26.7 cm) UNIVERSAL RING RETRACTOR VAGINAL RING NOVO # DESCRIPTION 5801-00 14” x 15” (35.6 cm x 38.1 cm) UNIVERSAL RING RETRACTOR SEGMENTED ELLIPTICAL RING NOVO # DESCRIPTION 5800-96 for spinal
Fluorocarbon FKM O-rings are standard. For an optional O -ring material, add an O -ring designator to the valve ordering number. Example: SS-ODKS2-BC O-Ring Kits O-ring kits contain O-ring, backup ring, washer, retaining ring, lubricant, and instructions. To order, add a kit designator to a kit basic ordering number. Example
KB part numbers and adds a “ KT” suffi x to indicate kit. The alpha character at the end shows what ring material is used in the kit. KB717KTD PISTON PART NO. KIT INDICATOR RING MATERIAL RING MATERIAL M MOLY D DUCTILE S STEEL CHROME KB’s NEW PISTON RING CATALOG 4000BD8 BORE RING PACK RING MATERIAL SET QTY. RING MATERIAL M MOLY D .
Principles of Secure Processor . most privileged mode that a typical system administrator has access to. Ring -2 System management mode . Operation Normal Operation Ring -1 Normal Ring 0 Normal Ring 3 Normal Ring -1 Privileged Ring 0 Privileged Ring 3 Privileged 21. Breaking Linear Hierarchy of Protection Rings
