1、 Manufacturing StandardsFord Motor Company199112 SCAFFOLD - SAFETY PLANKS SL2-1Engineering Standards production shift, date and year.3.9 FIRE RETARDANT TREATMENT: When specified, the planks shall meet thestrength requirements after treatment as specified in MILITARYSPECIFICATIONS; MIL-L-19140C, Sect
2、ion 3.4, STRENGTH RETENTION.4. SOLID SAWN LUMBER:4.1 SOUTHERN YELLOW PINE: Shall be: SCAFFOLD PLANK DENSE INDUSTRIAL 65or MSR SCAFFOLD PLANK 1850f grade plank or better, in accordancewith the latest edition of SPIB1 Grading Rules.Manufacturing StandardsFord Motor Company199112 SCAFFOLD - SAFETY PLAN
3、KS SL2-1Engineering Standards & Printed copies are uncontrolled.Systems Engineering (ESSE) Page 2 of 24.2 DOUGLAS FIR: Shall be: SCAFFOLD PLANK PREMIUM OR SELECT STRUCTURALgrade. All pieces FOHC2, and in accordance with the latest editionof WCLIB3 Grading Rules, paragraph 171a and 171b.4.3 CERTIFICA
4、TION: Each piece shall be marked or a certificate ofinspection to accompany each shipment to certify that the planksmeet the required scaffold grade.4.4 SURFACE: All planks shall be dressed four sides to a minimumthickness of 1-3/4 inches (44.4mm) and widths to 9-1/2 inches(241.3mm) or 11-3/4 inches
5、 (298.4mm).4.5 PRESERVATIVE TREATMENT: Both faces of each plank shall have asurface coat of Zinc Naphthenate wood preservative.4.6 MACHINING: Surfaces and corners shall be free of slivers, to permitsafe handling.4.7 END BOLTS: Four inches (101.6mm) from the ends of each plank a 3/8inch (9.5mm) carri
6、age bolt shall be inserted and counterbored at thenarrow face through the full width of the piece and secured withnuts and washers. The outside edges of the bolt head and nut mustbe flush with the edge of the plank.5. MOISTURE CONTENT: Shall not exceed 15 percent.6. END MARKING: The butt ends of eac
7、h plank shall be painted with SafetyGreen, M-316.7. TEST METHOD: Bending test procedure refers to project WPL 81-214prepared by the Department of Wood and Paper Science, North CarolinaState University, Raleigh, N.C.Standard Number SL2-6 SL2-8 SL2-10 SL2-12Length in Feet 6 8 10 128. APPROVAL OF NEW S
8、UPPLIERS:8.1 Scaffolds submitted by new manufacturers must have shop trialapprovals. Recommendations for the addition of new manufacturers tothe Manufacturing Approved Source List (ASL) must be made in writingto the Plant Engineering Office, Manufacturing Staff. Allsupporting data must accompany the written request.8.2 The Plant Engineering Office, Manufacturing Staff, and the CorporateSafety Office, Employee Relations Staff, will review requests todetermine approval.
