汽车检具制作标准

To: All UsersFrom: Bill Bielby / John Wolf / Don Ellis Gage Process EngineersPhone:248-576-0775 / 248-576-5126 / 248-944-1072T/L: 776-0775 / 776-5126 / 754-1072CHAPTER 1.0INTRODUCTION1.1 GENERALThis standard provides a common gage standard used by all DaimlerChrysler Engineering Departments except Power Train Engineering. This standard supersedes previous releases of the AME Gage Standard (GED0C001) back to Rev.9-98.This standard gives the gage source guidance in the requirements for design, build, inspection and certification of DaimlerChrysler gages to check all body-in-white, trim and chassis components. These DaimlerChrysler Gage Standards shall be adhered to for all gage fixtures.DaimlerChrysler is supporting the Tooling and Equipment Supplement to QS-9000. Seller must be third-part certified to either QS9000 TE Supplement (valid until December 15, 2006) orISO9001:2000, unless otherwise agreed to by DaimlerChrysler, International Procurement Services in writing. After December 15, 2006, third party certification for ISO9001:2000 will be required. Seller must obtain ISO9001:2000 certification from a TS16949 approved registrar and auditor. A list offTS16949 approved registrars is available at . Seller will supply evidence of the certification to DaimlerChrysler upon request.Deviations from these standards may be granted from the DaimlerChrysler Gage Process Engineer in writing and would be included with the standard as part of a specification package. All quotations shall then state that the gage fixture being quoted will be designed and built to the specification package and/or DaimlerChrysler Gage Standard.Design approval shall not constitute a waiver or guarantee of responsibility for any gage purchased by DaimlerChrysler Corporation. An approved gage design does not constitute a certified or functional gage.The Advance Manufacturing Gage Process Engineer has lead responsibility for all DaimlerChrysler user run plant gages.Appendix "A" defines the tasks required to design and build Outside Supplier Gages. The product releasing engineer has lead responsibility for the tasks identified in the Appendix "A".Only DaimlerChrysler approved/recommended design/build sources shall be used, unless agreed upon by the DaimlerChrysler Gage Process Engineer in writing using Waiver or Deviation request form from DaimlerChrysler Gage Process Engineer for approval consideration.=>For consideration to supply DaimlerChrysler Chrysler Group gage fixtures, request copy of "Request for Recommended DaimlerChrysler Gage Design / Build Source" document form: Request to ADD Gage Source v07 6-04.xls, from supplier's DaimlerChrysler Gage Process engineer contact for filing to initiate review process. Follow document's "Req(uest) Procedure" file tab to complete.For outside supplier gages, the Supplier shall notify the DaimlerChrysler Gage Process Engineer if he wishes to use a design / build source that is not on the approved / recommended source list (Refer to Gage Standard Section 12.0).1.2 GAGE STANDARDS FLOW CHART- ASME Gage Process will be responsible to chair and update DaimlerChrysler Design and Build Gage Standards.- Members of the standards committee will rotate between group personnel.- The standards committee will review all revisions to the standards before submitting for review and approval by BIW Gage Process, Stamping Gage Process and the user run plants.1.3 GAGE STANDARD CHANGE PROCEDURE:Standards to be reviewed yearly for update. And, semi-annually if updates are necessary.Gage standards change requests are to be submitted in MQAS through the "Document Change Request" (DCR) process form found in the "Released Documents" Lotus Notes database for document GEDOC001xx.All change requests will be submitted by a Gage Process Engineer for review.Addresses for viewing most current DaimlerChrysler ASME/AME Design and Build Gage Standards:Intranet Address./gages/index.htmInternet Address.https:///mfg/amedd/gages/index.htmContact DaimlerChrysler Gage Process Engineers for assistance.CHAPTER 2.0GAGE DESIGN2.1 General2.1.1All gage designs become the property of DaimlerChrysler.2.1.2Gage designs shall be a Computer Aided Design (CAD). Manual gage designs require approval by DaimlerChrysler. Gage designs that are required to be designed in CATIA Solid-E; see the DaimlerChrysler Gage Process Engineer for direction and approval.2.1.3All CAD gage designs will be formatted in CATIA at time of delivery. (DaimlerChrysler user run plants only).2.1.4Holding fixtures shall be designed in CATIA Solid-E for DaimlerChrysler user plants2.1.5All gages shall be designed in metric.2.1.6DaimlerChrysler Gage Process will conduct a design kick-off/line-up meeting with the gage manufacturer.2.1.7The design proposal shall have DaimlerChrysler approval at 40%, 90%, and 100% completion. The design source will submit one set of design plots for this review. All gage designs shall be signed-off by DaimlerChrysler Gage Process Engineer using the Gage Design Kick-off, Review, and Approval form (GEFM001xx).2.1.8a.) ASME: Preliminary Operation Description Sheets (ODS) are to be made available at the 90% design review for approval by DaimlerChrysler ASME Gage Process engineer.b.) AAME: Preliminary Automated Manufacturing Planning Sheets (AMPS) are created by DaimlerChrysler AAME Gage Process engineer with AMPS release two (2) weeks prior to V1 build when GR&R reports have been completed & passed using S2 metal for verification of clampingsequence.2.1.9The gage shall address all G, D, &T controls and "toleranced" surfaces as shown on the released part model.2.1.10Minimum material thickness shall be used for the gage design, construction and CMM programming.2.1.11Design Considerations:A. Operator and maintenance personnel safety.B. Simplicity in operator part loading without restrictions or interferences.C. Free accessibility to all components for ease of maintenance and replacement.D. Rigidity of construction for operation endurance for the life cycle of the vehicle.2.1.12After all issues from the 40% and 90% design reviews are resolved, the gage manufacturer is authorized to begin build. This authorization is documented on the Gage Design Kick-off, Review, and Approval Form (GEFM001xx) and is signed by the lead DaimlerChrysler Gage Process Engineer.2.1.13Upon shipment of the gage fixture to the DaimlerChrysler User Run Plant, the designs are updated and to include gage fixture dimensions and weight. Then, ship designs as directed by DaimlerChrysler Gage Process Engineer.2.2 Design Layout Requirements2.2.1The fixture base will be parallel to the X, Y, or Z plane of vehicle. Base orientation will be determined by the DaimlerChrysler Gage Process Engineer.2.2.2Alignment features shall be shown on the gage drawing, targets and tooling balls.2.2.3All gage designs shall be identified with DaimlerChrysler Gage Numbers as shown on the MEDDS specification for each design. Utilize the standard stock list (Figure 2.2a).The base height shall be determined by the average inspection height of 1000.0 mm.2.2.5All math models required for the gage design shall be listed in the space provided. List part number, drawing or layout number, name and latest change (Figure 2.2a).2.2.6List name, address, and phone number of manufacturer/supplier of all purchased parts on gage drawing. (Reference: stock list).2.2.7List DaimlerChrysler commodity codes in the Standard Stock List. (DaimlerChrysler Design & Build ONLY. See DaimlerChrysler Gage Design or Process Engineer.)2.2.8All bases larger than 48 inch x 48 inch will have legs and must be steel, unless otherwise noted by DaimlerChrysler Gage Process Engineer.2.3 Design Status2.3.1Design status reports are required weekly as directed by the DaimlerChrysler Gage Process Engineer.2.3.2Reporting Percentage Milestone Criteria:10% Placed. (Supplier has part information. Job has been started.)40% Design ready for review and approval (Job is laid out. Material is being ordered.)90% Design ready for final review (complete), buy-off, and ship to build source.100% Design complete including any build changes and archived at DaimlerChrysler.2.3.3 New Model Planning Reporting Standards: (MEDOC001 xx)Reporting standards are to reference New Model Planning (NMP) document (MEDOC001 xx) for uniform reporting percentages on gage fixtures.(See MEDOC001.xls insert)2.4 Recording Design RevisionStandard stock list sheet shall be the sheet used for all revisions. It shall indicate the latest revision, revision date, and revision authority. The stock list shall accompany design to the build source.2.4.2All Revisions will be written clearly and completely. Write revisions per sub-models affected. (Reference Figure 2.2a.)Example: Detail X Sub-model XXXXX Form revise; Hole relocated.2.4.3All designs shall be updated to include changes made during construction and noted in the change column.2.4.4Gage design or construction changes are not to be made without DaimlerChrysler Gage Process Engineer authorization.If changes are required after the GR/GR&R study is completed, the ODS shall be updated prior to shipment of gage fixture to the user run plant.2.4.5Design revision Change Letters:- First change letter used is "A".- All following change letters are used consecutively.- No change letter shall be skipped, except the letters "I", "O" and "Q".- Design revisions will carry a common change letter on every sheet involved in aparticular revision.2.4.6Changes shall reference the manufacturing Change Notice (CN)number and part engineering change (EC) level.Figure 2.2a Stock ListCHAPTER 3.0MANUAL GAGE DESIGN3.1 GeneralNote: Manual gage designs require approval by DaimlerChrysler3.1.1Body lines shall be called out and stamped on finish adjacent edges of base, and the units that are mounted to the base.3.1.2Use color for all part lines. A different color shall be used for each part. The identification of a part shall be called out at least once on each gage design.3.1.3Identify net areas of the gage with cross-hatching.3.1.4Identify materials being used in cross sections, with cross hatching.3.1.5Diamond characteristics identify on appropriate views and section.3.2 Layout Format3.2.1The gage design layout shall conform to and contain the information as contained in Standard Stock List.3.2.2Change balloons shall be used with all revisions on layouts, stock list and on borderline.3.2.3Use a 10.0 mm diameter balloon for change letters.3.2.4The minimum sheet size is "D" size, 24.0 inch x 36.0 inch.3.2.5The maximum length of a sheet shall be 12.0 feet, with a maximum width of 42.0 inches.3.2.6All sheets shall have a 0.50 in. border all around.3.2.7Designs shall be full size, unless otherwise specified.3.2.8Major panel designs shall have a key sheet which may be at a reduced scale.3.2.9A full plan view of the part and gage base is required on fixtures that are symmetrical about the centerline. The gage design shall show and detail the Right Hand side of fixture and any Left Hand only details.3.2.10Centerline and body lines shall be shown in three planes and in all views and sections. To front "O" line, to centerline of body and to bottom "O" line.3.2.11Start dimensions shall be shown in three planes; in full metric dimensions, at the right lower side of plan view for right hand fixtures, and left lower side of plan view for left hand fixtures.3.2.12The stock list shall list stock size, not name of detail, except for weldments, which shall be listed as "welded construction". Note: Always use standard manufactured stock sizes.3.3 Manual Design Sections3.3.1The gage design shall show plan, front, end views and all other views and sections necessary to clarify design.3.3.2On drawings requiring sections, start with section letter "A" and continue through the alphabet in order. Exceptions shall be for the letters "I", "O", and "Q". Also, list the sheet number where the section can be found. On the sheet with the section, indicate where the section is taken from.3.3.3All sections shall be full size or larger and noted. Any section that shows sheet metal shall beidentified by part number.3.3.4All sections shall be cut normal to part surface.3.4 Manual Design - Sheet Numbering3.4.1Sheet Numbers & Type of Drawings:Sheet #1 - Key sheet or layout sheet.Sheet #2 - Stock list (standard form)- Sheet #2a, 2b, 2c, etc. = Stock list continuation sheets.Sheet #3 - Additional layout or detail sheets.3.4.2Numbering for unitized drawings:Sheet 101 ( unit 1, sheet 1) General Layout.Sheet 102 (unit 1, sheet 2) General Layout or detail.Sheet 103 (unit 1, sheet 3) Bill of Materials (if required).Sheet 104 (unit 1, sheet 4) and higher as required.Sheet 1401 (unit 14, sheet 1) example of unit 14.Sheet 1401 (unit 14, detail #14001, unit 1, detail #1001).3.5 Detail Identification-Details symmetrically opposite on separate bases (use same number)1 REQUIRED SAE1018WELDED CONSTRUCTION AS SHOWNFOR RH FIXTURE 1 REQUIRED SAE 1018WELDED CONSTRUCTION SYMMETRICALLY OPPOSITE FOR LH FIXTURE-Details not symmetrically opposite (Use separate numbers).Detail 27-BRACKET (NORM)1 REQUIRED SAE 1018WELDED CONSTRUCTION FOR RH FIXTURE ONLY Detail 28-BRACKET (NORM)1 REQUIRED SAE1018WELDED CONSTRUCTION FOR LH FIXTURE ONLY-RH and LH Details on the same base (Use separate numbers).1 REQUIRED SAE1018 WELDED CONSTRUCTIONAS SHOWNFOR RH SIDE 1 REQUIRED SAE 1018WELDED CONSTRUCTION SYMMETRICALLY OPPOSITE FOR LH SIDECHAPTER 4.0COMPUTER AIDED DESIGN (CAD)4.1 General4.1.1The design shall adhere to DaimlerChrysler supplied product math model, and the MEDDS / AMPS detailing gage concepts.4.1.2Detailing is not required for CAD design, unless requested by DaimlerChrysler Gage Process Engineer.4.1.3CAD model of compatible references are furnished, when available (for reference only).4.1.4Designs shall be broken into sub-models. Each sub-model will consist of one complete stack of gage fixturing from product surface to base surface. For DEA flexible tooling, each module assembly shall have its own sub-model, using a unitized system.4.1.5CAD model shall be 3D & CNC compatible.4.1.6Details shall be identified in 3D wire frame model with a 3D number or CATIA attribute. Note a start point indicating orientation of the detail and the appropriate gage symbol indicating net, flush, feeler, etc.4.1.7CAD models shall be separable, individual details shall be in separate layers (base, clamps, composite, etc.)4.1.8Each CAD model shall be a complete representation of the finished fixturing for that sub-model, showing open position of clamps, templates, etc.4.1.9Designs may be completed in wire frame or CATIA Solid-E, as specified in process specification package.4.1.10When designing in wire frame, tapped holes and dowel holes shall be represented by a circle of the same exact diameter as hole. The circle shall be placed on the face of the detail where screw or dowel would enter. Counter bored holes shall have actual depth shown on the design. [Use Mt. Elliot Tool & Die (METD) tool design document, TEDOC004 xx, for color code reference for hole attributes. See DaimlerChrysler Gage Process Engineer.]4.1.11When designing in CATIA Solid-E, tapped holes should be represented by tap drill size with wire frame circle the exact diameter as tap. [Use Mt. Elliot Tool & Die (METD) tool design document, TEDOC004 xx, for color code reference for hole attributes. See DaimlerChrysler Gage Process Engineer.]4.1.12For wire frame designs, provide face definitions for periphery, flush, feeler, and net surfaces.4.1.13The gage shall be designed for N/C machining and shall be able to maintain dimensional integrity while being machined.4.2 CAD File Format for non-VPM users4.2.1Establish the CAD file using the following format: \Example #1: The file name for an inspection model is given as: S7FTAN55255516AA_AR_S01R_REL. The file name is defined as:S = Stamping Tool Gage.7 = Model Year of product; 1997.FT = Flexible Tool Gage.AN = Body style.55255516AA = Part number.AR = Product change level, "AR".SO1R = Sub-model S01 Right Hand.REL = Gage design change level "Release."Example #2: The file name for an inspection model is given as: A7QRS3400_REL_S01_AThe file name is defined as:A = Assembly Tool7 = Cube Tool for 1997 RSQ = Cube Tool fixture.RS = Body style.3400 = Area number.REL = Product Change Level ReleaseS01 = Sub model S01A = Tool design Change Level, "A".4.2.2When CATIA CAD designs are created for DaimlerChrysler checking fixtures, creation of symmetrically opposite models is not required. The following guidelines are examples for symmetrical and asymmetrical fixtures.Example #1: R1 Stamping Fixture for Panel Door Inner which is right hand shown, left hand symmetrically opposite.Part Info for Example #1:Part #55251234AA Rt. Engineering Change Level "D"Part #55251235AA Lt. Design Change Level "REL"MY/VF 1998 DNOnly models for the right hand fixture are required.The file name should contain both right hand and left hand part numbers. "RL" shouldfollow the base and sub-model identification, which designate the model as being righthand shown with the left hand symmetrically opposite.S8RDN55251234-5AA_D_STKLIST_RELS8RDN55251234-5AA_D_R1ODS_RELS8RDN55251234-5AA_D_BASERL_RELS8RDN55251234-5AA_D_S01RL_RELExample #2: R1 Stamping Fixture for Panel Rear Qtr. Otr. which is right hand shown, left hand symmetrically opposite except as shown.Part Info for Example #2:Part #55255678AA Rt. Engineering Change Level "C"Part #55255679AA Lt. Design Change Level "REL"MY/VF 1998 DNAll models for the right hand fixture are required.Only non- symmetrically opposite models are required for the left hand fixture.The filename should contain both right hand and left hand part numbers. "RL" shouldfollow the sub-model identification, which designate the model as being right hand shown with the left hand symmetrically opposite. "R" should follow the sub-model identification,which designates the model as being right hand only. "L" should follow the sub-modelidentification, which designates the model as being left hand only. The base sub-modelshould be followed with the appropriate designation of "RL", "R" or "L".Note: The left hand model should be created on the left hand side.S8RDN55255678-9AA_C_STKLIST_RELS8RDN55255678-9AA_C_R1ODS_RELS8RDN55255678-9AA_C_BASERL_RELS8RDN55255678-9AA_C_S01RL_RELS8RDN55255678-9AA_C_S02R_RELS8RDN55255678-9AA_C_S02L_RELExample #3: R1 Stamping Fixture for Panel Cowl Side which is right hand shown, and left hand is significantly different to justify a separate design.Part Info for Example #3:Part #55253456AA Rt. Engineering Change Level "C"Part #55253457AA Lt. Design Change Level "REL"MY/VF 1998 DNAll models for the right hand fixture are required.Filename should contain only the right hand part number for the right hand part. "R" should follow the base and sub-model identification, which designates the model as being righthand only. Filename should contain only the left hand part number for the left hand part."L" should follow the base and sub-model identification, which designates the model asbeing left hand only. Note: The left hand model should be created on the left hand side.Both designs require their own stock list and Operational Description Sheet (ODS).S8RDN55253456AA_C_STKLIST_RELS8RDN55253456AA_C_R1ODS_RELS8RDN55253456AA_C_BASER_RELS8RDN55253456AA_C_S01R_RELS8RDN55253456AA_C_S02R_RELS8RDN55253457AA_C_STKLIST_RELS8RDN55253457AA_C_R1ODS_RELS8RDN55253457AA_C_BASEL_RELS8RDN55253457AA_C_S01L_RELS8RDN55253457AA_C_S02L_RELExample #4: R1 Stamping Fixture for Panel Hood Inner which is right hand side shown, left hand side symmetrically opposite.Part Info for Example #4:Part #55259876AA Engineering Change Level "D"MY/VF 1998 DN Design Change Level "REL"Only models for the right hand side of fixture are required."RL" should follow the sub-model identification, which designate the model as being righthand shown with the left hand symmetrically opposite. "R" should follow the sub-modelidentification, which designates the model as being right hand only. "L" should follow thesub-model identification, which designates the model as being left hand only. No letterdesignation is required for base or sub-models which are a center line models.S8RDN55259876AA_D_STKLIST_RELS8RDN55259876AA_D_R1ODS_RELS8RDN55259876AA_D_BASE_RELS8RDN55259876AA_D_S01RL_RELS8RDN55259876AA_D_S02R_RELS8RDN55259876AA_D_S02R_RELS8RDN55259876AA_D_S03_D_RELExample #5: R1 Stamping Fixture for Panel Dash which is non-symmetrical across centerline.Part Info for Example #5:Part #55255432AA Engineering Change Level "D"MY/VF 1998 DN Design Change Level "REL"All models of the fixture are required.No letter designation is required for base or sub-models.S8RDN55255432AA_D_STKLIST_RELS8RDN55255432AA_D_R1ODS_RELS8RDN55255432AA_D_BASE_RELS8RDN55255432AA_D_S01_RELS8RDN55255432AA_D_S02_REL4.3 CAD File Format for VPM users.4.3.1 See DaimlerChrysler Gage Process Engineer for instructions, access privileges, etc.(GEDOC001 08.1) Rev.08.1 7-2005 - DaimlerChrysler Uncontrolled Document - ASME/AME Gage Standards Chapter 5CHAPTER 5.0BASES5.1 General5.1.1The base shall be sized so that all clamps and targets do not overhang the periphery of the base when in the open position. Also, there shall be sufficient surface provided on the base for mounting interchangeable tooling, inspection equipment and a DaimlerChrysler identification plate.5.1.2The base height shall be determined by the average inspection height of 1000.0mm5.1.3The part shall be a minimum of 100.0 mm above base, except CMM holding fixtures (refer to Section 6.13).5.1.4Machined surfaces of bases shall be rust-proofed.5.1.5All tooling plate gage bases shall have jig feet in the four corners.5.1.6Floor bases shall have provisions for leveling, utilizing all base pads include details in stock list.5.1.7Sub-base construction with multiple units shall utilize machined corners on the sub-base when units are doweled at assembly. Sub-base corners shall be labeled/stamped.5.1.8Base's leg, or cart if base size is less than 48 inch x 48 inch, requirements shall be finalized with the user run plant at the 40% design review and noted in the MEDDS specification.5.1.9Legs for bases will be itemized in fixture stock list.5.1.10Legs or carts are to be shipped to the user run plant only. Do not ship to tryout sources.5.1.11All legs will have leveling screws.5.1.12Holes for attached legs shall be provided; legs shall be shipped unassembled from base.5.1.13The material for cast aluminum bases shall be SAE 315 or equivalent; with Brinell hardness of 74. The average yield strength shall be 26,000 PSI and a tensile strength of 35,000 PSI. Supplier shall furnish their own pattern.5.1.14All bases shall be machined on two adjacent edges.5.1.15All steel bases shall be stress relieved5.1.16All aluminum bases shall be normalized.5.2 Base Sizes:5.2.1Aluminum S t e e lBase Size (base must fit within parameters in both directions)Base Material Base Size (basemust fit withinparameters in bothdirections)Base Material6.0 in x 6.0 in to 6.0 in x 12.0 in 1.0 in aluminum tooling plate,Blanchard ground flat & parallelto +/- 0.05 mm overall18.0 in x 12.0 in to18.0 in x 18.0 in0.75 in Thick (clean up) B.P.with Jig Feet 1.50 in x 1.50 in x0.44 in12.0 in x 8.0 in to 12.0 in x 16.0 in 1.0 in aluminum tooling plate,Blanchard ground flat & parallelto +/- 0.05 mm overall18.0 in x 24.0 in to18.0 in x 30.0 in1.0 in Thick (clean up) B.P. withJig Feet in x 1.50 x 0.44 in18.0 in x 12.0 in to 18.0 in x 18.0 in 1.0 aluminum tooling plate,Blanchard ground flat & parallelto +/- 0.05 mm overall with JigFeet 1.50 in x 1.50 in x 0.44 in24.0 in x 24.0 in to24.0 in x 36.0 in1.0 Thick (clean up) B.P. with3.0 in Channel all around 24.0in x 36.0 in 1.50.0 in from edgeof plate with (4) 0.75 in. Thickpads on corners18.0 in x 18.0 in to 48.0 in x 48.0 in Aluminum Casting30.0 in x 36.0 in to30.0 in x 42.0 in18.0 in x 30.0 in1.0 in Thick (clean up) B.P. with4.0 in Channel iron all around1.50 in from edge of plate with(Use mean thickness of web onchannel iron) (4) 0.75 in thickpads on corners36.0 in x 42.0 in to 36.0 in x 48.0 in Same as above except that maximum thickness for web channel iron to be used48.0 in x 48.0 in to 48.0 in x 84.0 in 1.25 in Thick (clean up) B.P. with 6.0 in channel all around 3.0 in from edge of plate plus sufficient channel braces and (4) 0.75 in thick 7.0 in x 7.0 in pads on corners. Legs and jack screws shall be provided on all four corners plus (1) in center of base48.0 in x 84.0 in to 48.0 in x 120.0 in Same as 48.0 in x 48.0 in except use 8.0 in channel iron48.0 in x 120. 0 in and over Same as 48.0 x 48.0 in except use 10.0 in channel iron. Provide for (6) legs and jack screws plus (1) in center of base5.3 Base Machined Tolerances5.3.1Overall "square- ness" relationship of machined edges, length, and width shall be +/- 0.08 mm.5.3.2Overall parallelism between top and bottom surfaces shall be +/- 0.08 mm.5.3.3Bases shall be flat within +/- 0.13 mm 0.13mm per square foot of area with a maximum of +/- 0.10 mm total in any length.5.3.4Base surface finish shall not exceed 80.0 micro inches RMS roughness.5.4 Line Blocks5.4.1Bases larger than 24 in. x 24 in. require a removable line block. (Figure 5.4a).5.4.2DaimlerChrysler Gage Process Engineer / user run plant determines line block or machine edge preference.5.4.3The hole pattern to locate line block around the gage shall have no more than 400.0 mm between locations.5.4.4Position line blocks outside of the gage and part.5.4.5Dowel holes in base for line blocks shall be reamed in steel bases and bushed in aluminum base construction. (Figure 5.4a).Figure 5.4a Line Block5.5 Hoist Ring Requirements5.5.1Supplier shall provide swivel clevis type hoist rings at the four (4) fixture corners if heavier than 60 pounds.5.5.2Hoist rings must have the load capacity to lift maximum weight of fixture plus 25%. Eye bolt size shall be determined by maximum load of eye bolts at a 60 degree pull angle.5.5.3The eye bolt size shall be stamped near the hole on the base.5.5.4Use Helicoil screw locks for aluminum bases.。