PES E-UNIT FOOTER REPAIR Statement of Objectives

Distribution Statement A: Approved for Public Release: distribution unlimited IRA-26-1653

SOO: AEDC Compressor V1409 Footer Repair

1) PROBLEM STATEMENT

Arnold Engineering and Devepment Complex (AEDC) has a compressor footer failure in the Propulsion Wind Tunnel (PWT) Area. The north-west footer female attachment threading has stripped out of the 4 mounting holes. These mounting holes are for an Allis Chalmers 1409 axial compressor.

2. DESCRIPTION OF SYSTEM

2.1. The drivetrain is shown in Attachment 1, Drawing 16-533-033. The compressor with the damaged thread is circled on RED.
2.2. Attachment 2, Photos of damaged footer.

3. WORK TO BE PERFORMED

3.1. AEDC work that will be performed prior to contractor arriving at AEDC 3.1.1. Agreed upon ducting is removed. Requires a site visit prior to contract award.

3.1.2. Couplers are removed

3.1.3. Compressor is disconnected from support services: oil lines, drain lines, instrumentation, etc. This is to allow the contractor to perform a lift of the compressor as a unit when they arrive.
3.2. Contracted Vendor to perform repair required work

3.2.1. CLIN 1

3.2.1.1. Lift compressor as a unit and replace unit after repair is completed, if required
3.2.1.1.1. Compressor weight in 80,000 lbf
3.2.1.1.2. Contractor is responsible for providing the crane 3.2.1.1.3. Lift plan is to be submitted 5 working days prior to conducting lift. Dec 22 – Jan 03 and weekends are
considered non-working days.
3.2.1.1.4. Inspection of compressor lifting points are to be performed to ensure lifting points are in a condition to support the lift.
3.2.1.2. Repair all 2-1/2”-8 hold down threads to original spec or greater on damaged footer. This includes 4 threaded fittings.
3.2.1.3. Repair remaining 2-1/2”-8 hold down threads to original spec or greater for remaining 3 footers. This includes 12 bolt holes. 3.2.1.4. Move compressor back to original location and secure to footer per specifications.
3.2.1.4.1. Contractor is responsible for providing the crane 3.2.1.4.2. Replace old bolts with new hold down hardware that meets or exceeds original specs. This includes 16 bolts.

Distribution Statement A: Approved for Public Release: distribution unlimited IRA-26-1653

SOO: AEDC Compressor V1409 Footer Repair

3.2.2. CLIN 2

3.2.2.1. Reconnect compressor to motor and aft compressor via AEDC removed couplers and shim packs.
3.2.2.1.1. Contractor will be required to provide a crane to lift couplers in place to attach. Coupler weight is approx.
2000 lbf