Amendment 0004 - CAP-129_M-502.pdf
PDF 272 KB Posted
- Solicitation number
- W912WJ22B0008
About this file
This document includes specifications for replacing guide roller assemblies on a vertical lift railroad bridge. The contractor will replace the upper guide roller assembly "A" and lower guide roller assembly "C" located in the southeast corner of the bridge. The specifications provide details on the existing conditions, components to be replaced according to reference drawings, requirements for verification of dimensions and materials, scheduling work with the Contracting Officer's Representative, conducting acceptance testing after installation, and additional references to other specification sections. Replacement of each assembly must be completed within the time period specified and is to include removing the existing assembly, installing new components, inspecting for any damaged connection components, adjusting and testing the installed rollers by completing three full raising and lowering cycles of the bridge span.
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Other files
| File | Type | Posted |
|---|---|---|
| Amendment 0011.pdf | ||
| Amendment 0010.pdf | ||
| Amendment 0009.pdf | ||
| Amendment 0008 - Revised-Sheet_M-501.pdf | ||
| Amendment 0008.pdf | ||
| Amendment 0008 - Revised-Sheet_M-103.pdf | ||
| Amendment 0007.pdf | ||
| Amendment 0006.pdf | ||
| Amendment 0005.pdf | ||
| Amendment 0004 - CAP-129_M-103.pdf | ||
| Amendment 0004.pdf | ||
| Amendment 0004 - CAP-129_M-102.pdf | ||
| Amendment 0004 - CAP-129_M-501.pdf | ||
| Amendment 0003.pdf | ||
| Amendment 0002.pdf | ||
| Amendment 0001.pdf | ||
| Drawings.pdf | ||
| Specs.pdf | ||
| Solicitation.pdf |
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Text version
E
C C
E N
T R
I C
I T
Y
℄ BORES IN
STRUCTURAL
PLATES
℄ Lo
W.L. TOWER COL.
M
A X
C
L E
A R
A N
C E
Lo
30 1/2" NORMAL
42"
19 1/4"
5" 13 1/2"
8 3/4"
42"
W.L.TOWER COL.
E
A R
Ø
Uo
℄ LIFT SPAN
TRUSS
1/2" ECCENTRICITY
℄ ROLLER
℄ BORES IN
STRUCTURAL PLATES
℄ Uo
8"
14 3/4" 19 1/4"
5 1/2"
22 3/4"
14 1/4"
17 1/4"4
GUIDE ROLLER ASSEMBLY REPLACEMENT (SOUTHEAST-ROLLER "A")
1. PRIOR TO ANY WORK BEING PERFORMED IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO CONFIRM ALL EXISTING CONDITIONS
INCLUDING DIMENSIONS AND CONSTRUCTED COMPONENTS OF THE CURRENTLY INSTALLED ITEMS TO BE REPLACED. CONTRACTOR
IS TO DEVELOP A WORK PLAN FOR EACH SCOPE ELEMENT INCLUDING MEANS AND METHODS, WORK SCHEDULE, AND PROPOSED
ACCEPTANCE TESTING TO COR FOR COMMENT AND APPROVAL.
2. THE GUIDE ROLLER ASSEMBLIES FOR THE SOUTHEAST CORNER OF THE SPAN LOCATED ON THE FIXED END ARE TO BE REPLACED.
UPPER GUIDE ROLLER ASSEMBLY "A" AND LOWER GUIDE ROLLER ASSEMBLY "C" ARE TO BE REPLACED. THE EXISTING GUIDE
ROLLERS "F" AND "G" ARE TO REMAIN.
3. PRIOR TO REMOVAL OF EACH GUIDE ROLLER ASSEMBLY, CONTRACTOR IS TO VERIFY THAT EXISTING ASSEMBLY MATCHES NEW AND
"FOR INFORMATION DRAWINGS" DOCUMENTATION IN REGARD TO DIMENSIONS, MATERIALS, AND CONSTRUCTED COMPONENTS. IF
ANY DISCREPANCIES ARE FOUND, REPORT TO COR TO RECEIVE FURTHER DIRECTION ON HOW TO PROCEED.
4. EACH ANTICIPATED DAY PLANNED FOR COMPLETING THE REMOVAL AND RE-INSTALLATION OF EACH GUIDE ROLLER ASSEMBLY MUST
BE PRE-SCHEDULED WITH COR PER REQUIREMENTS LISTED IN SPECIFICATION SECTION 01 11 00. THE REMOVAL AND
RE-INSTALLATION OF EACH GUIDE ROLLER MUST TAKE PLACE IN A TIME PERIOD AS DESCRIBED IN SPECIFICATION SECTION 01 11 00.
ACCEPTANCE TESTING OF THE NEWLY INSTALLED GUIDE ROLLERS MUST ALSO BE COMPLETED WITHIN THE SPECIFIED TIME PERIOD.
IF COMBINED REPLACEMENT OF THE UPPER AND LOWER GUIDE ROLLER ASSEMBLIES CAN NOT BE ACCOMPLISHED IN THE SPECIFIED
TIME PERIOD, EACH GUIDE ROLLER ASSEMBLY CAN BE REPLACED INDIVIDUALLY AS PART OF A SEPARATE TIME PERIOD.
5. REMOVE THE GUIDE ROLLER ASSEMBLY AND REPLACE WITH NEW COMPONENTS AS SPECIFIED. DURING REMOVAL, CONFIRM THAT
ALL NEW COMPONENTS HAVE BEEN PROVIDED FOR THE RE-INSTALLATION OF THE NEW ASSEMBLY. EXISTING BRACING MAY BE
REQUIRED TO BE REMOVED IN ORDER TO GAIN FULL ACCESS TO THE GUIDE ROLLER ASSEMBLIES.
6. IF ANY INTERNAL CONNECTION COMPONENTS ARE FOUND TO BE DAMAGED DURING THE REMOVAL OF THE GUIDE ROLLER
ASSEMBLY, REPORT TO COR TO RECEIVE FURTHER DIRECTION OF HOW TO PROCEED.
7. AFTER GUIDE ROLLER ASSEMBLY HAS BEEN RE-INSTALLED AND ADJUSTED, CONDUCT ACCEPTANCE TESTING OF THE ADJUSTED
GUIDE ROLLERS TO CONFIRM PROPER OPERATION AND ALIGNMENT. ACCEPTANCE TESTING FOR GUIDE ROLLERS TO CONSIST OF
COMPLETING 3 FULL RAISING AND LOWERING CYCLES OF THE SPAN. DURING TESTING, CONFIRM PROPER NORMAL OPERATION OF
GUIDE ROLLERS AND THAT ALL COMPONENTS ARE IN PROPER ALIGNMENT DURING CYCLES. CONTRACTING OFFICER'S
REPRESENTATIVE IS REQUIRED TO BE PRESENT FOR THE ACCEPTANCE TESTING. DEVELOP AN ACCEPTANCE TESTING REPORT
DOCUMENTING THE SUMMARY OF THE PROCESS AND RESULTS AND DELIVER TO THE CONTRACTING OFFICER'S REPRESENTATIVE
FOR REVIEW AND APPROVAL.
COMPONENT DESCRIPTION
GUIDE ROLLER "A"
BUSHINGS FOR 180
"A" GUIDE ROLLER SHAFT
COLLAR ON 184
NUT ON 185
SETSCREW FOR 187
LUB. FITT'GS FOR 184
ADJUSTABLE FLANGE FOR 184
BOLTS FOR 190
BOLT FOR 190
SCREWS FOR 182
QUANTITY
REMARKS
PC "A" OFF
SEE DETAIL
X 2 - SQ. HD. - DOG PT.
P T N D. ALEMITE-DOT-MOGUL #1488 WITH D.C. #1494
3 LENGTHS SEE TURNED BOLT LIST (M504)
SEE TURNED BOLT LIST (M504)
SEE DETAIL
PIECE (PC)
MATERIAL
F. S.
P. BZ. "B"
F. S.
S.
S.
S.
C. S.
S.
S.
S.
GUIDE ROLLER ASSEMBLY REPLACEMENT (SOUTHEAST-ROLLER "C")
REFER TO SPECIFICATION SECTION 05 50 10 FOR ADDITIONAL DETAILS.
COMPONENT DESCRIPTION
LUB FITT'GS FOR 205
BOLTS FOR 210
GUIDE ROLLER "C"
BUSHING FOR 199
SCREWS FOR 200
SETSCREWS FOR 206
"C" GUIDE ROLLER SHAFT
COLLAR ON 205
ADJUSTMENT FLANGE FOR 205
BOLTS FOR 210
QUANTITY
REMARKS
P T N D. ALEMITE-DOT-MOGUL #1488 WITH D.C. #1494
SEE TURNED BOLT LIST (M504)
PCS. "A" & "B" OFF
SEE DETAIL
X 1
HOLLOW-CONE PT.
SEE TURNED BOLT LIST (M504)
PIECE (PC)
MATERIAL
S.
F. S.
P. BZ. "B"
S.
S.
F. S.
S.
C. S.
S.
CC
1. PRIOR TO ANY WORK BEING PERFORMED IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO CONFIRM ALL EXISTING CONDITIONS
INCLUDING DIMENSIONS AND CONSTRUCTED COMPONENTS OF THE CURRENTLY INSTALLED ITEMS TO BE REPLACED. CONTRACTOR
IS TO DEVELOP A WORK PLAN FOR EACH SCOPE ELEMENT INCLUDING MEANS AND METHODS, WORK SCHEDULE, AND PROPOSED
ACCEPTANCE TESTING TO COR FOR COMMENT AND APPROVAL.
2. THE GUIDE ROLLER ASSEMBLIES FOR THE SOUTHEAST CORNER OF THE SPAN LOCATED ON THE FIXED END ARE TO BE REPLACED.
UPPER GUIDE ROLLER ASSEMBLY "A" AND LOWER GUIDE ROLLER ASSEMBLY "C" ARE TO BE REPLACED. THE EXISTING GUIDE
ROLLERS "F" AND "G" ARE TO REMAIN.
3. PRIOR TO REMOVAL OF EACH GUIDE ROLLER ASSEMBLY, CONTRACTOR IS TO VERIFY THAT EXISTING ASSEMBLY MATCHES NEW AND
"FOR INFORMATION DRAWINGS" DOCUMENTATION IN REGARD TO DIMENSIONS, MATERIALS, AND CONSTRUCTED COMPONENTS. IF
ANY DISCREPANCIES ARE FOUND, REPORT TO COR TO RECEIVE FURTHER DIRECTION ON HOW TO PROCEED.
4. EACH ANTICIPATED DAY PLANNED FOR COMPLETING THE REMOVAL AND RE-INSTALLATION OF EACH GUIDE ROLLER ASSEMBLY MUST
BE PRE-SCHEDULED WITH COR PER REQUIREMENTS LISTED IN SPECIFICATION SECTION 01 11 00. THE REMOVAL AND
RE-INSTALLATION OF EACH GUIDE ROLLER MUST TAKE PLACE IN A TIME PERIOD AS DESCRIBED IN SPECIFICATION SECTION 01 11 00.
ACCEPTANCE TESTING OF THE NEWLY INSTALLED GUIDE ROLLERS MUST ALSO BE COMPLETED WITHIN THE SPECIFIED TIME PERIOD.
IF COMBINED REPLACEMENT OF THE UPPER AND LOWER GUIDE ROLLER ASSEMBLIES CAN NOT BE ACCOMPLISHED IN THE SPECIFIED
TIME PERIOD, EACH GUIDE ROLLER ASSEMBLY CAN BE REPLACED INDIVIDUALLY AS PART OF A SEPARATE TIME PERIOD.
5. REMOVE THE GUIDE ROLLER ASSEMBLY AND REPLACE WITH NEW COMPONENTS AS SPECIFIED. DURING REMOVAL, CONFIRM THAT
ALL NEW COMPONENTS HAVE BEEN PROVIDED FOR THE RE-INSTALLATION OF THE NEW ASSEMBLY. EXISTING BRACING MAY BE
REQUIRED TO BE REMOVED IN ORDER TO GAIN FULL ACCESS TO THE GUIDE ROLLER ASSEMBLIES.
6. IF ANY INTERNAL CONNECTION COMPONENTS ARE FOUND TO BE DAMAGED DURING THE REMOVAL OF THE GUIDE ROLLER
ASSEMBLY, REPORT TO COR TO RECEIVE FURTHER DIRECTION OF HOW TO PROCEED.
7. AFTER GUIDE ROLLER ASSEMBLY HAS BEEN RE-INSTALLED AND ADJUSTED, CONDUCT ACCEPTANCE TESTING OF THE ADJUSTED
GUIDE ROLLERS TO CONFIRM PROPER OPERATION AND ALIGNMENT. ACCEPTANCE TESTING FOR GUIDE ROLLERS TO CONSIST OF
COMPLETING 3 FULL RAISING AND LOWERING CYCLES OF THE SPAN. DURING TESTING, CONFIRM PROPER NORMAL OPERATION OF
GUIDE ROLLERS AND THAT ALL COMPONENTS ARE IN PROPER ALIGNMENT DURING CYCLES. CONTRACTING OFFICER'S
REPRESENTATIVE IS REQUIRED TO BE PRESENT FOR THE ACCEPTANCE TESTING. DEVELOP AN ACCEPTANCE TESTING REPORT
DOCUMENTING THE SUMMARY OF THE PROCESS AND RESULTS AND DELIVER TO THE CONTRACTING OFFICER'S REPRESENTATIVE
FOR REVIEW AND APPROVAL.
REFER TO SPECIFICATION SECTION 05 50 10 FOR ADDITIONAL DETAILS.
M-502
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SHEET ID
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US Army Corps of Engineers
U S
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M-503
B9
M-503
B9
M-503
B4
M-503
B4
A1
SCALE: NTS
PLAN - ASSEMBLY OF ROLLER "A"
A6
SCALE: NTS
PLAN - ASSEMBLY OF ROLLER "C"
B4
SCALE: NTS
ELEVATION - ROLLER "A" ADJ. FLANGE
B9
SCALE: NTS
ELEV - ROLLER "C" ADJ. FLANGE
1. REFER TO GENERAL MECHANICAL NOTES ON SHEET M-101
SHEET NOTES
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