Amendment 0008 - Revised-Sheet_M-501.pdf

NEW SPACER COUPLING, PC-A3

NEW 5 HP MOTOR, PC-A1

EXISTING BASE FOR

MOTOR AND REDUCER

NEW MOUNTING BRACKETS, ASTM A36

1/2"

(BASE AND LIMIT SWITCH NOT SHOWN FOR CLARITY)

8 3/32"

NEW HAND WHEEL SAFETY

LIMIT SWITCH, PC-B1

NEW LIMIT SWITCH LEVER ROD

(MADE OF STAINLESS STEEL), PC-B2

7 1/2"

3/8" THICK BENT

PLATE (HOT-DIP

GALVANIZED STEEL)

MATCH HOLE IN

GEAR DRIVE AND

BASE (2 TYP.)

3/4" RADIUS (TYP.)

3/4" x 2" LONG HEX FOR HAND WHEEL

2 " MIN.

NEW GEAR DRIVE

MATCH HOLES IN GEAR DRIVE AND

BASE FOR ATTACHMENT

EXISTING REDUCER

NEW LIMIT SWITCH

MOUNTING PLATE

PC-B3 (SEE DETAIL A4, B4)

℄ LIMIT SWITCH

2"

3/8"

NEW MOTOR/GEAR DRIVE

SUPPORT, PC-A4

POWER CABLE PC-D3

NEW GEAR DRIVE WITH C-FRAME ADAPTER, PC-A2

(REFER TO "FOR INFORMATION DRAWINGS" FOR DETAILED

SHOP DRAWING OF EXISTING GEAR DRIVE AND STAND.

REFER TO SPECIFICATION FOR COMPONENT DESCRIPTION)

MATCH HOLE IN

GEAR DRIVE AND

BASE (TYP.)

EXTENDED OUTPUT SHAFT WITH 3/4"

HEX TO BE MADE OF STAINLESS STEEL

LOWER SPAN LOCK MOTOR/GEAR DRIVE ASSEMBLY REPLACEMENT

REFER TO SPECIFICATION SECTIONS 05 50 15 AND 23 03 00 ADDITIONAL DETAILS.

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 USACE FOR COMMENT AND APPROVAL.

2. REMOVE EXISTING NORTH AND SOUTH LOWER SPAN LOCK MOTOR, GEAR DRIVE ASSEMBLY/FRAME, SPACER COUPLING, AND MOUNTING SUPPORTS. REPLACE

WITH NEW COMPONENTS AND INSTALL ALL NEW FASTENERS. REMOVE EXISTING NORTH AND SOUTH LOWER SPAN LOCK LEVER ARM LIMIT SWITCHES AND

REPLACE WITH NEW COMPONENTS. PROVIDE NEW MANUAL HAND CRANK TOOL FOR EACH NEWLY INSTALLED MOTOR ASSEMBLY.

3. NEW HAND CRANK SAFETY LIMIT SWITCH FOR EACH LOWER LOCK SHALL BE INSTALLED AND ADJUSTED TO BE TRIPPED BY HAND CRANK WHEN INSERTED AT

END OF SHAFT FOR MANUAL OPERATION. THIS WILL ELIMINATE POWER TO THE MOTOR WHEN HAND WHEEL IS ENGAGED.

4. REMOVE EXISTING LOWER SPAN LOCK LIMIT SWITCHES AND REPLACE WITH NEW COMPONENTS TO BE INSTALLED ON NEWLY FABRICATED MOUNTING PLATES

WITH APPLIED PROTECTIVE COATING OF ANTI-CORROSION PAINT. PROVIDE NEW FASTENERS FOR INSTALLING NEW COMPONENTS.

5. ALL ELECTRICAL POWER AND CONTROL CONNECTIONS TO THE MOTOR AND LIMIT SWITCHES SHALL BE DISCONNECTED PRIOR TO COMPONENT REMOVAL.

RECONNECT EXISTING POWER CONDUITS AND CONDUCTORS FROM THE NEW MOTOR TO THE EXISTING DISCONNECT SWITCH PER SPECIFICATION AND

ENERGIZE NEW MOTOR. REUSE EXISTING LIMIT SWITCH LOCK MOTOR CONTROL WIRING FROM THE MOTOR TO THE EXISTING TERMINAL CABINET.

6. CONDUCT ACCEPTANCE TESTING OF THE NEW SPAN LOCK MOTOR ASSEMBLIES TO CONFIRM PROPER OPERATION AND ALIGNMENT. ACCEPTANCE TESTING

FOR SPAN LOCK MOTOR ASSEMBLY TO CONSIST OF COMPLETING 3 FULL CYCLES OF OPENING AND CLOSING LOCK. DURING TESTING, CONFIRM ALL LIMIT

SWITCHES ARE CALIBRATED AND PROVIDE PROPER SAFETY OPERATION. CONFIRM PROPER NORMAL OPERATION OF SPAN LOCK ASSEMBLY AND THAT ALL

COMPONENTS ARE IN PROPER ALIGNMENT TO INTERACT WITH EXISTING COMPONENTS DURING THE OPENING AND CLOSING CYCLE. CONTRACTING

OFFICER'S REPRESENTATIVE IS REQUIRED TO BE PRESENT FOR THE ACCEPTANCE TESTING. PERFORM ACCEPTANCE TESTING FOR BOTH SPAN LOCK

ASSEMBLIES. 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

5 HP MOTOR, GEAR DRIVE, SPACER COUPLING, HAND CRANK, MOUNTING SUPPORT

HAND WHEEL SAFETY SWITCH, SWITCH LEVER ROD, MOUNTING PLATE

LOCK DRIVEN LIMIT SWITCH, LOCK PULLED LIMIT SWITCH

(REFER TO 26 27 00 FOR LIMIT SWITCH SPECIFICATIONS)

QUANTITY*

LOCATION

NORTH AND SOUTH PIERS

SPAN LOCK MOTOR ASSEMBLY

SPAN LOCK ASSEMBLY

PIECE

PC-A(1-4)

PC-B(1-3)

PC-C(1-2)

*ALL QUANTITIES HAVE BEEN DOUBLED TO ACCOUNT FOR REPLACING COMPONENTS AND FASTENERS ON BOTH THE NORTH AND SOUTH ENDS OF THE SPAN.

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C1

ELEVATION VIEW NEW LOWER SPAN LOCK MOTOR ASSEMBLY

SCALE:NTS

A1

SCALE: NTS

ELEVATION - MOTOR/DRIVE SUPPORT, PC-A4

A4

SCALE: NTS

PLAN - MOUNTING PLATE (PC-B3)

(LIMIT SWITCH MOUNTING PLATE)

B4

SCALE: NTS

ELEVATION - MOUNTING PLATE (PC-B3)

SEE DETAIL A1, THIS SHEET

1. REFER TO GENERAL MECHANICAL NOTES ON SHEET M-101

SHEET NOTES

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