Attachment_8a_-_NASA_MCAT_Preventive_Maintenance.pdf
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- Attached to
- Ascension Island Mission Services (AIMS) Solicitation FA252119RA017 Federal contract opportunity
- Solicitation number
- FA252119RA017
About this file
This document outlines preventative maintenance procedures and tasks for the NASA Meter Class Autonomous Telescope located at Ascension Island. Key maintenance items include monthly mirror cleaning, inspection and maintenance of dome components, HVAC systems, dehumidifiers, weather instruments, and biweekly inspection and cleaning of the telescope drives and oil systems. Technical instruments also require monthly and biweekly preventative maintenance procedures such as inspection and cleaning of cryogenic systems, computer fans, pressure gauges, and oil filters. Computer systems and network devices are rebooted as needed. Corrosion removal of the right ascension drive is performed as required. Estimated completion times are provided for most recurring maintenance tasks.
Attachment 8a - NASA MCAT Preventive Maintenance
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Text version
NASA Meter Class Autonomous Telescope (MCAT) For NASA’s Maintenance Contractor via USAF 45th Space Wing
I. Infrastructure and Operations Preventive Maintenance (PM) Procedures
1. MCAT Operations PM Procedures
2. Responsibilities and Supplemental Information
3. Fire Alarm Test and Maintenance [Annual]
4. Wash Dome [ANNUAL]
5. Corrosion Control Inspection and Repair [SEMIANNUAL, or AS NEEDED]
6. HVAC Inspection and Maintenance [MONTHLY]
7. Dehumidifiers Inspection and Maintenance [MONTHLY]
8. Observa-Dome Inspection and Maintenance [MONTHLY]
8.5 Observa-Dome Inspection
8.5.1 Monthly Visual Inspection of Tire Pressure Gauges
8.5.2 Vertical Caster (aka azimuthal roller) Check and Greasing
8.5.3 Horizontal Caster Check
8.5.4 Dome Encoder Check
8.5.5 Auditory Inspection and Retenioning of Chains, Cables, and Casters.
8.5.6 Fixing Slack and Play in Chains, Cables, and Casters
9. Weather Instruments Inspection and Maintenance [MONTHLY]
10. Rodent/Vermin Removal [AS NEEDED]
11. Dome Open During Daytime Hours [AS NEEDED]
12. Report Alarm [AS NEEDED]
13. MCAT L2 VACUUMING [MONTHLY]
14. DOME SKIRT RESEATING [MONTHLY]
15. AZIMUTH DOME MOTOR TIRE PRESSURE READINGS AND REFILLINGS [MONTHLY]
FA2521-19-R-A017, Attachment 8a
1269460390C Typewritten Text NASA MCAT Preventive Maintenance
II. Technical Instruments Preventive Maintenance (PM) Procedures
1. MCAT Technical PM Procedures
2. Responsibilities and Supplemental Information
3. MCAT Mirror Cleaning [MONTHLY]
4. Polycold Cryotiger Inspection and Cleaning [MONTHLY]
5. TCS Computer Fan Filter Inspection and Cleaning [MONTHLY]
6. Telescope Mount Pressure Gauges Inspection [MONTHLY]
7. Oil Filter Pressure Gauges Inspection [MONTHLY]
8. PolyCold Pressure Gauges Inspection [MONTHLY]
9. PureGas Air Dryer Inspection [MONTHLY]
10. Air Flow Meters and Pressure Gauges Inspection [MONTHLY]
11. .mil Computer Login [MONTHLY]
12. Telescope Drives Inspection and Cleaning [BIWEEKLY]
13. Telescope Oil Drive System Inspection and Maintenance [BIWEEKLY]
14. Right Ascension and Declination Amperage Meters Readings [BIWEEKLY]
15. Computer Restart [AS NEEDED]
16. Ethernet Switch Restart [AS NEEDED]
17. Galil Computer Restart [AS NEEDED]
18. Focuser Assembly Belt Inspection [AS NEEDED]
19. Corrosion Control of Right Ascension Drive [AS NEEDED]
20. Monitoring UPS Battery Faults [BIWEEKLY]
Task Description Tasks (with reference numbers) Frequency Estimated Time to Complete*
Mirror Cleaning 3. MCAT Mirror Cleaning Monthly 1 hour Monthly Inspections, Gauge Readings and minor maintenance
4. Polycold Cryotiger vent inspection/cleaning
5. TCS Computer fan filter inspection/cleaning
6. Telescope mount pressure gauge readings
7. Oil filter pressure gauge readings
8. Polycold Cryotiger pressure gauge readings
9. Membrane Air Dryer inspections
10. Airflow Meters/pressure gauge readings
Monthly 1 hour total for all tasks listed
.mil Computer Login 11. Login for .mil computer Monthly 15 min Biweekly Inspections, Gauge readings, and maintenance
12. Telescope drive inspection and cleaning
13. Telescope oil drive system inspection
14. RA and Dec Amp meter readings
Bi-Weekly 30 min for all tasks listed
Rebooting systems 15. Computer reboot
16. Ethernet Switch reboot
17. Galil Computer Reboot
As needed 15 min
Belt Inspection 18. Telescope Focus Belt Inspection As needed 1 hour Corrosion Control 19. Rust Removal on Right Ascension Drives As needed TBD
*Estimated time to complete is actual time, not including travel time to-from the site and assumes Tasks 4-10 should be completed at the same time, and Tasks 12-14 should be completed at the same time.
FA2521-19-R-A017, Attachment 8a
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