Final Supply Contract Drawings v2 - Fort Randall Draft Tube Bulkhead Seal Replacement.pdf
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- W9128F26QA004
About this file
These technical drawings are for the US Army Corps of Engineers Omaha District, detailing a draft tube bulkhead seal replacement project at Fort Randall Dam and Reservoir on the Missouri River. The documents provide comprehensive design specifications for replacing rubber seals in the powerhouse, including detailed drawings of gate assemblies, seal details, and spring shoe components. Key technical specifications include:
The drawings specify replacement of top, bottom, and side seals with new rubber seal assemblies, including precise dimensional details, bolt hole configurations, and Teflon coating requirements. The technical drawings include specific notes requiring contractors to field measure seal bar lengths and bolt spacings, with tolerances specified for dimensions and angles. The project involves multiple seal components across eight existing draft tube bulkheads, with detailed technical drawings providing exact specifications for manufacturing and installation of new rubber seals and associated hardware.
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Text version
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CONTRACTOR TO FIELD MEASURE SIDE SEAL BAR LENGTH
CONTRACTOR TO FIELD MEASURE SIDE SEAL BAR BOLT SPACINGS
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3" 6" 1' 0"0
3" 6" 1' 0"0 3" 6" 1' 0"0
6" 1' 0" 2' 0"0
1/4" CHAMFER
TOP
BOLT HOLE. SEE NOTE 4
WITH 11/16"ØCOUNTERSUNK
ROUND EDGE BAR 3 1/2" X 1/2"
STRUCTURE
EXISTING BULKHEAD
SEE NOTE 4
WITH 11/16"Ø BOLT HOLE
ROUND EDGE BAR 4" X 1/2"
1/4" CHAMFER
STRUCTURE
EXISTING BULKHEAD
STRUCTURE
EXISTING BULKHEAD
R 1/4"
SEE NOTE 3
COAT WITH TEFLON
SEAL WITH TEFLON
DO NOT COAT BOTTOM
SEE NOTE 3
COAT WITH TEFLON
PROVIDE RUBBER SEAL SHIM
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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F9
SCALE: 3" = 1'-0"
RUBBER SEAL (SIDE SEAL ASSEMBLY)
GENERAL NOTES
WITH FINDINGS PER SECTION 05 56 09.00 26.
BOLT SPACING FOR ALL 8 EXISTING DRAFT TUBE BULKHEADS. SUBMIT REPORT
CONTRACTOR TO FIELD MEASURE EACH SIDE SEAL RETAINING BAR LENGTH AND 11.
TO SITE UNDRILLED.
SEALS ARE SHOWN IN ASSEMBLY WITH BOLT HOLES. DELIVER SEALS 10.
ITEMS IN BOLD ARE NEW.9.
± 0.00005X.XXXX
± 0.0005X.XXX
± 0.005X.XX
± 0.02X.X
± 0.1X
TOLERANCEDIMENSION
TOLERANCES FOR DECIMAL DIMENSIONS ARE AS FOLLOWS:8.3
TOERLANCES FOR ANGLES: ± 0.5°8.2
8.1.3 NON-MILLED ENDS AND MEMBER LENGTH OVER 30': ± 1/8"
8.1.2 NON-MILLED ENDS AND MEMBER LENGTH OF 30' OR LESS: ± 1/16"
8.1.1 BOTH ENDS MILLED: ± 1/32"
8.1 TOLERANCES FOR FRACTIONAL DIMENSION:
TOLERANCES UNLESS OTHERWISE NOTED.8.0
SPECIFICATIONS FOR REQUIRED NUMBER OF BULKHEADS.
ALL QUANTITIES INDICATED ON STRUCTURAL SHEETS ARE FOR 1 BULKHEAD. SEE 7.
ALL BOLT HOLES ARE TO BE STANDARD SIZE, UNLESS NOTED OTHERWISE.6.
OTHERWISE.
OR MACHINING. BREAK ALL DRAIN HOLE EDGES TO A 1/8" RADII UNLESS NOTED
EDGE IS DEFINED AS ANY EDGE THAT IS THE RESULT OF SHEARING, FLAME CUTTING
BREAK ALL SHARP EDGES TO A 1/16" RADII UNLESS NOTED OTHERWISE. A SHARP 5.
COUNTERSUNK AND THE SIDE AND BOTTOM SEALS ARE STANDARD HEX HEAD BOLTS.
QUANTITIES AS REQUIRED BY THE SPECIFICATIONS. NOTE THE TOP SEAL BOLTS ARE
SEAL BOLTS ARE NOT SHOWN IN DETAIL VIEWS FOR CLARITY. PROVIDE SEAL BOLT 4.
THE BOTTOM SEAL DOES NOT HAVE TEFLON COATING.
SHOWN. NOTE THE TOP AND SIDE SEALS HAVE DIFFERENT COATING REGIONS, AND
PROVIDE FACTORY VULCANIZED TEFLON FILM IN THE REGION OF THE SEALS AS 3.
ALL PARTS ARRIVING ON SITE MUST BE INSPECTED BY GQAR.2.
WORK THIS DRAWING WITH REFERENCE DRAWING MR91-82E1.1 AND M-702.1.
K1
SCALE: 3" = 1'-0"
RUBBER SEAL (TOP SEAL ASSEMBLY)
F1
SCALE: 3" = 1'-0"
RUBBER SEAL (BOTTOM SEAL ASSEMBLY)
A3
SCALE: 1 1/2" = 1'-0"
NEW SIDE SEAL RETAINER BAR
A1
SCALE: 1 1/2" = 1'-0"
SECTION
A1
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