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.
4-5. Daily Preventive Maintenance Checks and Services Chart
Item to be inspected
Check switches, controls, knobs,
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.