Daily inspection, continued
RESTRICTED
4. Fifty
Hour In-
spection,
Sight.
a. Sight
Case
Housing.
rotor bearings are lubricated,
run gyro for 10
minutes,
remove
brushes
clean commutator,
brushes
and brush tubes with carbon tet.
Wipe
with
clean white dry ctoth.
Inspect gears for burrs and dirt.
8: Check isolated sector and contact
made by
stabilizer brush.
7.
Check
slip rings for pits and contact of
slip ring brushes.
8. Check telescope
light.
9.. Check action of all moving parts.
10.
glass.
I1. Clean
disc and
roller.
Check disc speed.
13. If, during check,
there is indication of
malfunctioning, find trouble and correct.
If a 15 hour inspection is performed, the ac-
cumulated number of hours for
the next
15 hours
and the accumulated number of days for the next
15 day inspection will be dropped and started from
zero.
15 DAY INSPECTION:
Inspect gyro rotor bearings each 15 days when
gyro has
been operated less
15 hours
Oil if necessary.
Run all motors for 15
minutes whether lubricated or not.
If gyro rotor
bearings were lubricated, clean commutator, brushes
and brush tubes.
Inspect for
corrosion exterior and
interior).
If a 15 day inspection is performed,
the ac-
cumulated number of DAYS ONLY for
the 15 day in-
spection will be dropped and started from zero.
A 15
day inspection DOES NOT cancel a
15 hour in-
spection.
The case must be kept
clean
and
prevent corrosion. Check condition of paint as to
peeling,
chipping,
etc. If the paint has
chipped
or has
peeled
but
Darn paint as to
been
no corrosion formed
scrape and polish the area with a
hard wooden
stick
and crocus
cloth and
retouch with a fast dry-
ing crackle finish lacquer on the exterior,
and
black mat varnish on the interior.
If the corros-
ion has formed
underneath paint, scrape and polish
the area thoroughly before retouching. Corrosion
of the
magnesium alloy in the equipment may be de-
tected
as
a white powder or paste similar to the
the substance which is found on a "dead" dry cell
and
6.
Check
isolated
sector
and
contact
Clean
12.
than
in
days,
145