TM 11-6625-1702-12
b. When the equipment has been returned
i n the daily preventive maintenance checks
t o service after higher category maintenance.
a n d services chart (para 4-5) daily or under
the special conditions listed below.
c. At least once each week if the equipment
a. When the equipment is initially received.
i s maintained in a standby condition.
Sequence
Item to be inspected
Procedure
1
Exterior
surface
-
-
-
-
-
-
-
-
-
-
-
-
Clean
the
equipment
(fig.
l-l)
exterior
sur-
faces
and
meter
class.
If
meter
glass
is
broken,
refer
to
higher
ech-
elon
for
repair.
2
Switches,
controls,
knobs,
indicators
Check switches, controls, knobs,
indicators,
and
and
connectors.
connectors
for
loose
or
insecure
fastenings;
tighten
if
required.
Replace
cracked
or
broken
knobs
and
indicator
lens.
None.
Power,
rf,
and
control
cables
-
-
-
-
-
Check
the
cables
for
cuts,
kinks,
and
frayed
3
insulation.
Repair
or
replace
as
necessary.
(If
cables
cannot
be
repaired
with
the
tools
and
supplies
available,
refer
to
higher
cate-
gory
maintenance.)
During
operation
(para
and
3-4),
be
alert
4
Operation---------------------------
for
any
evidence
of
unusual
performance
or
faulty
operation.
If
the
equipment
fails
to
operate
properly,
perform
the
visual
inspec-
tion.
b. T h e m o n t h l y p r e v e n t i v e
Monthly Preventive Maintenance
C h e c k s - a n d Services
check procedures for the AN/ARM-115. These
procedures, in addition to the requirements in
a. Perform the maintenance functions indi-
a above, should be performed when the equip-
c a t e d in the monthly preventive maintenance
ment is initially received and at any time that
checks and services chart once each month in
trouble is suspected. The tests involve checking
addition to those given in the daily preventive
o f the internal power supply for the correct
m a i n t e n a n c e checks and services chart (para
voltage, checking the internal meter for proper
4-5). A monthly interval is defined as approx-
operation, checking the tune indicator for
i m a t e l y 30 calendar days of 8-hour-per-day
p r o p e r operation, checking for proper opera-
o p e r a t i o n . Adjustment of the maintenance in-
t i o n of the unit under test while mounted on
t e r v a l must be made to compensate for any
the control panel and while connected by
u n u s u a l operating conditions. Equipment used
cables to the control panel. If trouble is encoun-
less than 8 hours per day or maintained in a
tered in performing these checks, visually in-
s t a n d b y (ready for immediate operation) con-
spect the equipment (para 4-8). If trouble still
d i t i o n must have monthly preventive mainte-
e x i s t s , refer to the procedure in the trouble-
n a n c e checks. Equipment in limited storage
s h o o t i n g chart that corresponds to the test in
( r e q u i r e s service before operation) does not
which the trouble occurred.
r e q u i r e monthly preventive maintenance.
Change 3
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