[Escoordminutes] ES Div. Coordination Mtg. for September
Lew Serna
lserna at aoc.nrao.edu
Mon Oct 4 13:53:46 EDT 2004
Minutes for the ES Division Coordination Meeting held on Tuesday,
September 28, 2004, at 10 am, in the LL CB conference room. Attending
were Bob Broilo, Lew Serna, Pat Lewis, Guy Stanzione, Brent Avery,
Patty Lindsey, Mark McKinnon, Jim Ruff, James Sullivan, Tom Frost and
Jon Thunborg.
BUDGET Serna. September 28 is last day for requisitions charged to
FY 2004. Projections show that ES Division has spent down their budget
with a carry over for rail equipment ordered in FY 2004. WBS’ were
received from engineering and site & wye groups, still need WBS’ from
Antenna Mechanic and Electrical groups. Plan on same operating budget
as you had beginning last fiscal year until budget numbers are
available. Bearing refurbishment is on hold until more information
about next years budget is available.
AZ Bearings. Antenna #16 bearing replacement scheduled for Monday,
October 18 will be delayed 1 week to October 25. Critical personnel may
require a schedule shift change if they work on Fridays. Parts from the
bearings removed from antennas should be stored until they are scheduled
to be shipped to Rotek for repair. These parts are needed for measuring
and fitting of new parts. Antenna #14’s bearing will be shipped to
Rotek for possible refurbishment sometime in FY 2005. Bearings will be
refurbished as they are removed from the Antennas (approximately 1 per
year). Antennas 18, 20 and 26 have bad bearings that will eventually
need to be replaced. A spare bearing should be maintained at all times.
An estimated three weeks in the AAB are required before a bearing change
can occur. Antenna #16 should enter the AAB around October 6. Try to
prepare as far in advance as possible. Guy Stanzione will be the next
Bearing Change Supervisor. It is possible that visitors from Jodrell
Bank Observatory in the UK will witness the separation.
NEW PROJECTS:
AZ bearing pocket mill- the AZ Bearing Pocket Mill is used to machine
the antenna azimuth bearing pocket. At best the mill will currently
achieve an accuracy of around .008 inches or .009 inches of tolerance.
The spec calls for less than a .012 inch tolerance. The use of a
different bearing on the mill would achieve a higher degree of accuracy
for milling the pocket. The bearing has been ordered and has a 6 week
delivery leadtime. Drawings for the modification are being drawn up.
The modification will not be available for the bearing change in October
but should be ready for the following bearing change.
AUTO shop concrete slab-- The badly deteriorated slab in front of the
Auto Shop needs to be replaced. Approximate cost is around $4K for 37
yards of concrete and other materials. This project should be complete
by next week.
VLA tachs— it is desirable to replace the analog tachs with digital
brushless tachs on the VLA antennas as is being done on the VLBA
antennas. Bob believes this can be done with normal operations funding
with a plan to replace tachs as they fail. Tachs would have to be
replaced at a minimum rate of 2 per failure or one axis (AZ or EL) at a
time. Replacement of these tachs should improve reliability of the
servo system.
ANTENNA doors— many antenna vertex room and pedestal room doors are in
bad shape and need replacement. Ramon will investigate the problem and
decide if these doors should be replaced as part of the overhaul.
Otherwise they will be replaced as needed. Insulated steel doors cost
around $400 each.
VLBA painting – A program to visit each VLBA site for painting is being
considered. The VLBA SC site antenna is in dire need of a paint job and
will be first priority. Other sites will be investigated to establish a
priority. It would be highly desirable to have a three week period in
order to achieve adequate preparation prior to painting at VLBASC. The
first visit would entail painting areas of the antenna from the
elevation axis down. Also some repairs to stairways, platforms and other
structural components would have to be made prior to painting. Shipment
of equipment, manlift rental, paint material, fresh water purchases, and
travel cost estimates are roughly around $60K. A true cost analysis is
being made by J. Thunborg.
VLBA antenna panel adjustments— a program to set VLBA antenna panels at
a rate of 3 antennas per year is also being considered. Holography
measurements for Pie Town panels are available. Because of the backup
structure design, the panel adjustments can be made without a manlift.
PT panels were marked and adjusted in a period of around 3 days. The
basic plan is 4 men for 3 days on site.
ACU Modification. A new ACU replaces the ACU in its entirety is
desirable. The new ACU would hopefully improve the position loop
response, improve reliability and replace the obsolete components. A
PLC (Programmable Logic Controller) based upgrade would cost around $3K
per antenna.
EVLA STATUS
Cold Storage (Shop Space) – The EVLA Cold Storage Building is complete
with the exception of sprinkler and electrical work. Storage can begin
in the north end while sprinkler work proceeds on the south end. After
the south end is complete material may have to be moved to the completed
area in order to complete the north end. Minor electrical work is
currently being done to provide exterior lighting. Sprinkler work may
require help from the carpentry group.
Transporter Generators- Two John Deere 70 KW generators are ordered to
replace the existing 40 and 31 KW Detroit generators on the
transporters. There is an 8 week delivery. The new generators should be
able to carry both the transporter and antenna loads and are much
quieter than the old Detroit generators. Some modification to the
transporter will be required to fit the new generators since they do not
have the same footprint as the old generators.
Acceptance Tests— After Antenna 16 is outfitted it will undergo numerous
required acceptance tests prior to being turned over to Operations.
Leadmen and supervisors are asked to compile a checklist for their area
of responsibility that will ensure that the EVLA antennas will be
completely operational prior to entering the array for operations.
A decision has been made to convert all antennas to EVLA during
overhauls from antenna 16 forward.
ModComp relocation will begin soon and will require manpower from
Electrical, HVAC and Carpentry shops.
QUARTERLY REPORT UPDATE P. Lindsey
Quarterly Report Due. Please update & return to Patty by Thursday.
SAFETY REPORT...
Accident/Incidents Report:
Three (3) new accidents to report this month. There have been a total of
sixteen (16) Accident/Incidents reported this year. Twelve 12
accident/incident attributed to the ES Division.
Monthly All Hands Safety Meeting:
Last meeting was held on August 26, 2004. There were a total of 39
employees in attendance. Near misses was the topic.
Next Monthly All Hands Safety Meeting:
The next all hands safety meeting will be held on September 30, 2004 @
3:00pm in the VLA Cafe. OFCS (Optical Fiber Communication System) will
be the topic.
EMS newer Ambulance:
The VLA-EMS group is looking at the purchase of a 1989 E350 Medtech
ambulance. The purchase request has been signed by Jody Bolyard (NRAO
Safety Manager) and a latter sent from Skip to Ted in Charlottesville,
VA to send to NSF for approval.
Fire Brigade:
After October 1st the fire brigade would like to set up some training
through the NM Fire academe to training some of the members in Firemen
one & two. This will take approximately one to two weeks (hopefully).
We need to keep an eye on safety around the site. Jon Spargo has noticed
a lot of employees not wearing seat belts while driving site vehicles.
OTHER Discussion (Other)
Quarterly updates for EVLA WBS manpower contributed effort. Accurate
estimates should be submitted quarterly for these updates. These will be
followed by a new PAN reflecting EVLA contributed effort. Pans will be
updated quarterly as well.
LWA—Long Wavelength Array- The southwest consortium made up of several
southwestern universities is proposing to place a prototype array within
the VLA square mile. These antennas are approx. 1 meter high and are a
dipole type antenna. The array consists of a couple hundred antennas
and will take up about a 50 square meter area. Possible sites include
north east of the dump, south east of the AAB or between the Visitor
center and VSQ’s. This project is not a NRAO project but we may provide
trenching for fiber and power.
Announcements:
1.) November 15 is the deadline for NRAO High School scholarship
applications.
2.) Skip Lagoyda reports that we have direct bill arrangements with the
following hotels:
MK King Kamehameha, Kona, HI
BR Omak Inn, Omak, WA
OV Ramada Inn, Bishop, CA
FD Best Western, Alpine, TX
KP Ramada Palo Verde, Tucson, AZ
NL AmericInn, Coralville, IA
SC Chenay Bay, Saint Croix, VI
Depending on season and availability, the rates at these hotels are
always very reasonable. Please have travelers in your divisions visiting
these sites use these establishments to minimize cash advances. Thanks.
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