TM 5-6115-465-12
TO 35C2-3-446-1
NAVFAC P-8-625-12
TM 06858B/06859D-12
(1) Removal.
(c) Remove hourmeter (15) from panel.
(a) Tag and disconnect electrical leads to
(2) Cleaning and Inspection.
frequency meter.
(a) Clean hourmeter with filtered com-
(b) Remove self-locking nuts (19, figure
pressed air or wipe with a clean, lint-free cloth
lightly moistened with an approved solvent.
(b) Visually inspect hourmeter for corro-
(c) Remove frequency meter (21) from
sion, cracked casing, cracked or broken glass,
panel.
stripped or otherwise damaged threads, and evi-
dence of shorting or other damage.
(2) Cleaning and Inspection.
(3) Testing. Comect hour meter to a 24 Vdc
(a) Clean frequency meter with filtered
source and observe for proper operation. Replace
compressed air or wipe with a clean, lint-free
hourmeter if it fails to operate correctly.
cloth lightly moistened with an approved solvent.
(4) Installation. Install hourmeter in reverse
(b) Visually inspect frequency meter for
order of removal procedures.
corrosion, cracked casing, cracked or broken
glass, stripped or otherwise damaged threads,
e. Battery Charging Ammeter.
evidence of shorting, and other damage.
(1) Removal.
(3) Installation. Install frequency meter in
reverse order of removal procedures.
(a) Tag and disconnect electrical leads to
battery charging ammeter.
NOTE
(b) Remove self-locking nuts (16, figure
The frequency meter and frequency
transducer should be tested with a
(c) Remove battery charging ammeter
frequency test meter, frequency
(18) from panel.
counter, or a STE/ICE prior to
replacement.
(2) Cleaning and Inspection.
(a) Clean battery charging ammeter with
filtered compressed air or wipe with a clean, lint-
Frequency Transducer.
g.
free cloth lightly moistened with an approved sol-
(1) Removal.
vent.
(a) Tag and disconnect electrical leads
(b) Visually inspect battery charging am-
to frequency transducer.
meter for corrosion, cracked casing, cracked or
broken glass, evidence of shorting, stripped or
(b) Remove self-locking nuts (22, figure
otherwise damaged threads and other damage.
(c) Testing. If the battery charging am-
(c) Remove frequency transducer (24)
meter is suspected of being faulty, temporarily sub-
from control cubicle.
stitute a known functional meter in its place. If the
same readings are obtained with the substitute
(2) Cleaning and Inspection.
meter, the original is operational and need not be
replaced.
(a) clean frequency transducer with fil-
tered compressed air or wipe with a clean, lint-free
(4) Installation. Install battery charging am-
cloth lightly moistened with an approved solvent.
meter in reverse order of removal procedures.
(b) Visually inspect frequency transducer
NOTE
for dents, cracks, corrosion, and other damage.
The frequency meter and frequency
transducer should be tested with a
(3) Installation. Install frequency transducer
in reverse order of removal.
frequency test meter, frequency
counter, or a STE/ICE prior to
replacement.
f. Frequency Meter.
3-73
Change 16
