[Escoordminutes] ES Division April Coordination meeting minutes
Lew Serna
lserna at nrao.edu
Thu May 1 10:55:09 EDT 2008
Minutes for the ES Division Coordination Meeting held on Tuesday, April
29, 2008, at 10:30 am, in the LL CB conference room. Attending were Lew
Serna, Charley Chavez, Ramon Gutierrez, Bob Broilo, Guy Stanzione,
Martin Lopez, Gene Cole and Jon Thunborg.
(Note: May ES coordination meeting is canceled)
BUDGET ---Site & Wye Track budget is over $40K short but an effort to
replace the $40K is being made. 4500 RR Ties have been ordered. Track
will have to wait for more funds to order further track material.
Spending may continue under the assumption that you have last years
operating budget. Funds for ordering parts to overhaul the yellow bus
engine are spent from the ops budget ($12K) which will likely overrun
the Vehicle Maintenance Budget. Several pieces of equipment need to be
replaced due to being worn out such as the Steam Cleaner ($3-4K), Band
Saw ($6K) and Break. A request to Brent to search on surplus for these
items would be worthwhile. Also hydraulic cylinders for the track mobile
will need to be replaced at a cost of $6K. Several accounts are likely
to be overspent so keep a close watch and order critical items only.
Stock Proposal- Skip Lagoyda introduced a service whereby a company,
Fastenal, can provide a shop stock of products that they sell in bins at
individual VLA shops. The idea is that an inventory of products used in
a shop can be maintained by a Fastenal representative. The
representative would visit the VLA on a regular basis taking inventory
and restocking his bins. The respective shop would then be charged on
items removed from the stocked bin. This idea is attractive to the
warehouse since this would reduce the cost of warehousing a large
inventory. This may also be a good idea for maintaining certain products
in different shops as well. Skip will arrange a meeting between Fastenal
and Supervisors/leadmen to see if this is a service we can use sometime
in the near future.
VLBA -- Tiger Team visits to OV, NL are planned for 2008. St Croix will
take an extended mechanical maintenance visit in the fall to replace
Subreflector, Elevation Bearing, finish painting, install platform and
change out one Azimuth wheel assembly. Antenna mechanics should ensure
we have wheel assemblies ready for North Liberty, Owens Valley and St.
Croix. We will maintain one spare as well. The platforms are planned
to be completed in PT this year. The paint on the HN subreflector was
deteriorating and its surface contour will require some work to get in
final spec. The reflector will need to be prepared in time for the SC
maintenance visit. A more robust box to ship the subreflector will be
needed. TT Visits for this year are NL 4/30/08-5/07/08, OV
8/18/08-8/25/08.
The BR foundation will require repairs in the near future due to
deterioration at an approximate cost of $15K. MK dish panels that were
damaged were replaced. The damaged panels need to be repaired for spares.
AZ BEARINGS -- Next Bearing replacement for Antenna 28 will occur in
July/August of 2008. Bob Broilo is the Bearing Change Supervisor for
antenna 28. An estimated three weeks in the AAB are required before a
bearing change can occur. A chordal diameter on the old bearing is
needed for comparison to the replacement bearing. Parts from the
bearings removed from antennas are needed for measuring and fitting of
new parts and should be stored until they are scheduled to be shipped to
Rotek for repair. Antenna 14, 16 & 18's bearings have been shipped to
Rotek for refurbishment. Delivery of these bearings should be June of
2008. If possible bearing replacements will occur at a rate of one per
year in order to maintain the EVLA outfitting schedule. There is one
good Azimuth bearing on hand. One spare bearing should be maintained at
all times in the event a catastrophic failure occurs however; we are
reasonably assured that the 3 refurbished bearings will arrive this
summer so we will use the spare for antenna 28 if necessary. Grease
samples show that antennas 10, 20, are also good candidates for
scheduled bearing changes.
PROJECTS:
Control building Stairways--- The Control Building Stairways are being
replaced due to their rapid deterioration. The stairways will be
replaced with an improved design conforming to ADA. The western stairway
is complete. A new concrete landing will have to be poured at the base
of the eastern stairway and the steps replaced. The eastern stairway is
deemed hazardous and is currently barricaded to prevent its use. Work on
the eastern stairway will continue as the workload permits. No further
progress.
ST Croix Maintenance Visit--- St. Croix Antenna has undergone extensive
repair and painting work due to its severe corrosion problems. Work
began on September 10 through December 21 completing 99 % of the
painting. Some topcoat painting remains at the base of backup structure.
In addition the AZ Wheel Assy, Subreflector and elevation bearing
replacement work will be completed. This work along with finishing the
painting is tentatively scheduled to occur in October 2008. The
warehouse reports that there are enough parts to prepare for ST Croix
and to maintain a spare (or 2ea). This St. Croix Trip is expected to
last about 3 weeks.
VLA ANTENNA FOUNDATION MOVEMENT--- A problem with north arm antenna
foundation movement needs to be addressed. It appears that the two
rearward station pillars have been slowly separating over the years at
BN3 and BN5 with BN5 being the worst. They have separated far enough in
about 33 years that 2 bolts (one on each reward pad) can no longer be
used to secure the antenna pads to the foundation pillars. Markers have
been set for taking measurements to try and see which pillars are
actually moving and at what rate. If it becomes obvious that the plates
need to be repositioned, this work is in progress. Measurements need to
be re taken while the stations are without antennas.
The plates from BN5 have been removed for modification in the machine shop.
VLA LIGHTING- All high mercury content light bulbs should be eliminated
from stock. A plan to replace all ballasts and bulbs to efficient
electronic ballasts is initiated. In addition to removing the high
mercury content bulbs the savings in kilowatt usage would payback the
initial cost in less than 2 years. Skip is funding this energy project.
The Control Building is complete and the Tech Services building is now
being converted.
GENERATOR REPAIRS--- Minor leaks were noticed at the engine rear seals
and it is desirable to install a better fuel filtering system. A bearing
on the generator unit also should be replacement as a PM. This work
would cost around $15K and will be put on the funding wish list.
POWER MONITOR--- A plan to install power monitoring equipment in the
Hatch gear will require a power outage lasting 2 days. A hatch gear PM
is also needed. The preferred time for installation would be the fall
when the weather dry and calm. Perhaps the work can be scheduled on a
weekend (or double maintenance day). The power monitoring equipment is
very useful in determining our power quality needs and will keep
operations informed of power status at all times. A time will need to be
determined by operations.
EVLA;
Civil--- Correlator Room: A preventive measure to test batteries and
lubricate the Correlator Door will be implemented by the ES Electrical
group. Cable trays are ordered by Doug Gerard. DC Power supply Cable
Tray layout will be coordinated in conjunction with Electronics Division
data cables installation. The cleaning underneath the computer flooring
will follow installation of cabling. FM 100 training is scheduled for
August 8.. A mock Correlator rack will arrive so that a dry run on
installation can be made to prepare for rigging and installing the real
racks around May 15. Several groups will be involved with the rack
installations and Guy Stanzione will coordinate the effort.
EVLA Antennas--- Feeds: Contracts for casting S-band and laminating of
the S-band are finalized. S-Band rings are being cut in preparation for
assembly. For efficiency S-band feeds will be laminated two at a time
every 8 weeks. The second S-Band Christmas tree will built using L-Band
Christmas tree parts once the L-Band lamination work is complete
sometime in early June. Out of 18 L Band feeds tested, there are 2 that
remain on the on the shelf that have been tested. VSWR tests will be
made to several L-Band feeds later this summer. It is desirable to
install as many feeds as possible while in the AAB. Some S-band feeds
will probably need to wait until the antennas are back in for overhauls.
In the event remaining VLA antennas are shut down after the 22^nd EVLA
antenna is complete it may be desirable to remove power and complete
some of the outfitting tasks in the field for some groups.
SAFETY REPORT :
It is the NRAO policy not to do any asbestos work and any work that is
to be done is to be contracted out. This is because of the cost burden
that includes medical surveillance, training, as well as workers
compensation insurance issues.
Wednesday, April 30, Jody Bolyard is presenting the Leadership Training
at the VLA site. He is presenting the training in Socorro on Tuesday.
We are seeing minor injuries that are the result of folks not staying
aware of their surrounding environment or improper lifting techniques.
As you know, once we start seeing multiple minor injuries, we inevitably
see a major one.
TAILGATES--Supervisors and leadmen should conduct tailgate sessions daily.
ANNOUNCEMENTS:
PEP---
April-- Solicit self appraisals
May 15--- PEP Training for Supervisors/leadmen
May-June 30-- Supervisors complete forms and conduct interviews
July 7--- All PEP's due in HR
Manager/Supervisor Safety Training Session---- At the VLA Cafeteria
conference room April 30th at 3:00 PM.
All Hands Meeting with Bob Dickman at the VLA Cafeteria 11:00 am. on
Thursday, May 1.
Supervisor Affirmative Action Meeting on May 7, 9:30 in the VLA
cafeteria conference room.
PEP workshop for supervisors/leadmen at 10:00 am. on Thursday, May 15.
VLA cafeteria conference room
OTHER:
Eleventh Synthesis Imaging Workshop June 10- June 17.
VLA Tour for Synthesis Imaging Students will require the use of the 3
VLA buses and drivers on Sunday, June 15, 2008.
Re-dedication of AOC with Senator Domenici at AOC on 5/30/2008.
LMI-NSF Review of NM Ops 6-23 to 6-25.
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