[Escoordminutes] ES Div Coord. mtg. January minutes
Lew Serna
lserna at aoc.nrao.edu
Thu Jan 27 09:15:24 EST 2005
Minutes for the ES Division Coordination Meeting held on Tuesday,
January 25, 2005, at 10 am, in the LL CB conference room. Attending
were Eric Carlowe, Ramon Gutierrez, Lew Serna, Pat Lewis, Guy Stanzione,
Steve Aragon, Gene Cole, Brent Avery, Bob Broilo, James Sullivan, Jim
Ruff, Tom Frost and Jon Thunborg.
BUDGET Serna— We are currently operating under the premise of having
80% of our "normal" (last years) budget. Restrict spending to urgent
purchases until the budget is known hopefully by March sometime.
There is no secretarial replacement due to budget constraints so
secretarial services will be limited to doing critical ES Division
activities until we can get more help. Areas most affected are Safety
Division credit card record keeping and some services related to
purchase requisitions. Files for ES requisitions will still be
maintained but copies will not be sent out. Other minor services will be
curtailed please bear with us.
VLBA Trips for 2005 (targeted) — MK trip has been replaced with a SC
trip due to urgent repairs are required at SC. MK maintenance visit
will occur in year 2006; HN 6/13/05-6/19/05; SC 4/7/05-4/25/05; LA
9/19/05-9/25/05. The VLBA SC site antenna is in urgent need of
structural repair. Some repairs to quad legs, stairways, platforms and
other structural components will be made. At the same time FRM balancing
and troubleshooting will occur. Cost is estimated at around $28K. The
SC bound container must ship no later than March 3, 2005.
Owens Valley Wheel replacement/Kitt Peak Digital Tach replacement—The
Owens Valley VLBA antenna needs a drive wheel assembly replacement in
addition to an elevation motor replacement, idler wheel alignment and
installation of modified motor filter boxes. A trip is planned for Feb.
14 through Feb. 17. On the same week the Digital Tachs and ACU
backplane will be installed at Kitt Peak.
AZ Bearings. 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
& #16’s bearing will be shipped to Rotek for possible refurbishment
hopefully sometime in FY 2005. 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 #18 should enter the
AAB late April for outfitting and bearing change. Bearing change should
be planned for sometime in May to avoid Tiger Team trips and Antenna
Moves in June. Try to prepare as far in advance as possible. It is
possible that visitors from Jodrell Bank Observatory in the UK will
witness the separation. Antenna 20 bearing replacement will be
scheduled for later in the summer this year.
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. A target date for installing the pocket mill
bearing is 3/9/05. The mill will need to be tested prior to the next
bearing change in May.
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 made and panels were adjusted in September.
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. No
conclusive results have been obtained at Pie Town consequently this
project is ON HOLD.
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 has funded the prototype and design work is in
progress. No funding commitments are made for retrofitting.
Control Building Stairways. After repeated unsuccessful attempts to
stop the corrosion on the Control Building Stairways we are forced to
replace the stairways with an improved design conforming to ADA.
Estimated cost to do this for both stairways is $12K. A kick plate on
one staircase has fallen off due to corrosion and the stairway has been
closed to the public. In order to open the stairway to the public,
modification to the stairways, to conform to ADA (American Disabilities
Act) standards are necessary.
EVLA STATUS
Production Antenna Outfitting—With EVLA going into full production,
Ramon Gutierrez the overhaul supervisor will assume responsibility for
controlling the antenna outfitting until it is ready to turn over to the
Electronic Division coordinator. Ramon will also chair the EVLA
outfitting meeting currently being held every week or so. The next
meeting will be Thursday 1/28/05, 11 a.m. in the Control Building video
conference room (upstairs).
Transporter Generators- Two John Deere 70 KW generators are ordered to
replace the existing 40 and 31 KW Detroit generators on the
transporters. 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. It is desirable to provide an electrical plug for
running auxiliary pumps during bearing changes at the same time that the
generator work is being done. Bob will follow up on delivery of
generators.
All L Band (and possibly S band) rings will be fabricated at the VLA.
The old Subreflector Shop will become the new feed ring shop. Review of
manpower requirements indicates that another antenna mechanic may be
necessary to accommodate this additional work. We will wait until
several newly hired mechanics are trained before making a decision on
hiring another mechanic.
ModComp relocation will occur on Feb 14 with an anticipated power
outages of 2 days. This outage should mainly affect the operations area
only. A 1 hour outage will affect the entire Control Building.
Roaming network outages will occur at different parts of the VLA Site at
different times until the network equipment is relocated. These network
outages will be announced and should last no longer than 30 minutes at a
time. One final outage will last approx. 2 hours. Outages will be
planned to minimize the impact on operations.
It is possible that temporary power can be provided to the Control
Building fire alarm system. Fire Alarm Status during this move should
be reported to operations, fire brigade and to all hands in the event it
is inoperable.
QUARTERLY REPORT UPDATE With secretarial shortage, Lori Appel will
assume responsibility for collecting information and will contact
supervisors for updates, please cooperate promptly.
SAFETY REPORT...
Accident/Incidents Report:
NRAO-NM ended the year with 28 accident/incidents for 2004.
2005, Year to date we have had (2) two accident/incidents so far. Nether
one of these accidents involved an ES Div. employee.
Annual Hearing Test:
On Tuesday, February 01, 2005, a mobile test unit from W. H. Harlan &
Associates, Inc., in Albuquerque will be on site beginning at 0900 MST
to conduct hearing tests. These tests are part of our hearing
conservation program.
Next Monthly All Hands Safety Meeting:
The next all hands safety meeting will be held on January 27, @ 3:00 pm
in the VLA Cafe. Safety eye glass program and the safety footwear will
be on the topics.
OTHER:
Proposed VHF Observing System: The Smithsonian Astrophysical Observatory
(SAO) is proposing a 320 MHz observing system similar to what is used
for the existing 74 MHz.
After an initial test period, if the proposed VHF observing system is
approved, the SOA will build and deliver 28 dipole-receiver packages for
deployment and testing. Installation on each antenna will require
manpower by NRAO operations with SAO engineering and technical staff
available to assist.
ANNOUNCEMENTS:
The mileage reimbursement rate for NRAO authorized travel using
privately owned vehicles is 40.5 cents per mile for the period of
January 1, 2005 to December 31, 2005. This rate is based on Internal
Revenue Service (IRS) guidance and is updated annually.
SAFETY GLASSES: Notification to staff of the procedures for getting
safety glasses is forthcoming in the next all hands safety meeting. In
the interim, we can still use Wilson Optical mail order. With the
departure of Jon, we will no longer be able to provide fittings for
employee safety glasses. This is not a policy change, but a practice
change. It has always been the responsibility of the employee to have
the glasses fitted properly. The safety glasses program has been and
still remains a fully funded safety program.
Similarly changes in the Safety Shoe program will be announced at the
next mandatory all hands safety meeting.
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