(SANITIZED) PRECISION ENLARGER PROTOTYPE (BPE) OPERATIONAL IMPROVEMENTS AND MAINTENANCE

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04770A001100060013-1
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 28, 2016
• Document Release Date: June 27, 2006
• Sequence Number: 13
• Publication Date: September 30, 1968
• Content Type: PERRPT

Approved For Release 2006/061 7. C P78B04770A001100060013-1
iECRE
I*e
Monthly Report
249
-Sept 1968
SUBJECT: Ikecision Enlarger Prototype (BPE) Operational
Improvements and Maintenance
TASK/PROBLEM
1. Provide photographic enlarger maintenance at the customer's
facility for one recision Enlarger (BPE) and three 10-20-40X
Enlargers.
2. Contractor personnel visited the customer's facility during the
week of 9 September 1968. The purpose of the visit was to perform both
the one-month and six-month preventive maintenance checks on the
Precision Enlarger. (See check list indicating the work performed.)
3. During the maintenance check, it was determined that some of
the lens barrels were loose within the focus barrels. These were
tightened and refocused; a complete photographic check was made to
ensure that the instrument was in proper operating condition.
4. Perform monthly preventive maintenance on the BPE and install
carriage limit switches and vertical speed drive stop on this equipment.
5. Inspect the 10-20-4OX enlargers and perform the monthly
preventive maintenance check.
SECRET
GROUP 1
EXCLUDED FROM AUTOMATIC DOWNGRADING
AND DECLASSIFICATION
Approved For Release 2006/06/27: CIA-RDP78BO477OA001100060013-1
 Approved For Release 2006/06/27: CIA-RDP78BO477OA001100060013-1
PREVENTIVE MAINTENANCE SCHEDULE CHECK LIST
I I PRECISION ENLARGER
Assigned to: B-213 Date 9/9/68 Machine Serial No. 001
Item
Description
Daily Interval
Item Description
I Check the four indicator lamps on the
sub-control panel.
2.1 Check closed--negative-gate interlock.
2.2 Check interlock that causes vertical
transport slow speed.
2.3 Check interlock that disables negative
transport after fluid injection.
2.4 Check operation of microswitch that
functions when manual-film-movement
knob is pushed in.
3.1 Check the indicator lamps for the
two attenuator banks of the easel
photometer.
3.2 Check the meter scale illuminator
lamp of the easel photometer.
3.3 Check the antifatigue lamp in photo-
multiplier tube housing.
7
4 Clean the glass plates of the negative
gate.
l Vacuum-clean the enlarger.
2 Check, and if necessary, clean the
objective lenses and all glass filters.
V
3 Vacuum-clean the front surface of the
easel.
/
4 Check the fiber optics for broken
fibers.
I Wax the steel rails of the lens ramp
J
and of the easel.
V/
2 Install new air filter in lamphouse.
3 Clean the nylon brushes of the fluff-1
removal s
st
y
em.
4 Check all tubing and hoses for cracks
and air leakage.
5 Check and, if necessary
clean the
,
lenses of the condenser lens
assemblies.
VI
'-1
1.1 Make a photographic check on all ei ~ht
matching sets of objective and
condenser lens assemblies.
1.2 Be sure that film is tracking properly
in both directions on the negative
transport system.
Check the timing belts of the film
transport system, of the vertical
drive system, and of the easel drive
assembly for wear.
Repainted easel with flat white enamel; cleaned out holes.
NOTE: All lens barrels loose, out of calibration. Focus series run.
1. "B", 'rC", "G" checked O.K.
2. "A", "D", "E", "F", "H" recalibrated and rezeroed.
-4-
Checked by, Date 9/1()/68
Changed 2/68
Approved For Release 2006/06/27: CIA-RDP78BO477OA001100060013-1