Product_Description_50_ton_Intake_Gantry_Crane_Controls_Repair_.pdf

U.S. Army Engineer District, Charleston

Product Description

50-Ton Intake Gantry Crane

Controls Refurbishment

Cooper River Rediversion Project

St. Stephen Hydro Power Plant

St. Stephen, South Carolina

Sep 2016

PRODUCT DESCRIPTON

50-TON INTAKE GANTRY CRANE CONTROLS REPAIRS

1. GENERAL: This document describes specifications for the supply of Repair parts, service and equipment to refurbish the 50-Ton Intake Gantry Crane Controls for the St. Stephen Hydro Power Plant.

2. COMMENCEMENT, PROSECUTION AND COMPLETION OF WORK (FAR

52.211-10): All required Repair parts, Equipment and Services shall be provided within 90 calendar days of contract award.

3. SUBMITTALS: Complete product specification sheets/information must be submitted for all proposed equipment. Manufacturer’s documents are included in Section 8.

4. GENERAL SCOPE: The CRRP St. Stephen Hydro Power Plant operates three

(3) Hydroelectric generators. One Model# GC-50T-100 CEM Associates 50

Ton Intake Gantry Crane was designed and installed to manipulate the

68,000 pound Intake gates. Originally installed in 1982, the controls are presently unreliable and has failed Annual inspections.

In general, the work to be performed consists of the following items:

a. Replace all control wiring and all limit switches

b. Replace wiring and travel Alarm circuit

c. Replace Load cells, adjust and certify by Load test

d. Replace Dash pot relays with Electro/mechanical relays

e. Replace Rectifier panels, contactors and Circuit breakers

f. Replace Joy stick controls and associated wiring

g. Demolish Alignment system

h. Restore Cab Ventilation system

i. Inspect all bearings and replace as necessary

j. Replace all seals and change Gear box lubricants

k. Clean and adjust Main and Auxiliary Hoist brakes

l. Rebuild Main and Auxiliary Hoist motors

m. Replace Main and Auxiliary Hoist wire rope (if required)

5. MATERIALS: Materials will be replaced in-kind to restore reliable and safe operation. Manufacturer’s drawings and material lists are included in Section

8.

6. ACCEPTANCE: Repair Parts and Maintenance Service supplied will be warranted against defect for at least one (1) year after installation. If deficiencies are found with Equipment inside the warranty period, the supplier must provide replacement parts without further cost to the Government.

7. INVOICING: Invoices should be sent to the attention of:

Mr. James C. Carter, Jr.

Operations Project Manager

Cooper River Rediversion Project

St. Stephen Hydro Power Plant

1275 Rediversion Road

St. Stephen, SC 29479

Ms. Cynthia Ruddy

US Army Corps of Engineers Charleston District

69A Haygood Avenue

Charleston, SC 29403

8 . MANUFACTURER’S INFORMATION:

Drawing 10899, Assembly and List of Drawings

Table 4-2, List of Major Components and Vendor Bulletins

**See Part II**