c. Clean, dry, lint-free cloth.
d. S o f t - b r i s t l e b r u s h .
Note. The operator will perform operator and organ-
e. C l e a n i n g c o m p o u n d ( N S N 8 0 1 0 - 0 0 -
i z a t i o n a l maintenance.
f. O s c i l l o s c o p e A N / U S M - 2 8 1 A ( o r
T h e maintenance duties assigned to the op-
g. M u l t i m e t e r M E - 2 6 D / U .
e r a t o r of this equipment are listed below to-
gether with a reference to the paragraphs cov-
4-3. Preventive Maintenance
e r i n g the specific maintenance functions. The
Preventive maintenance is the systematic care,
tools and materials required are listed in para-
servicing, and inspection of equipment to pre-
g r a p h 4-2.
vent the occurrence of trouble, to reduce down-
a. Daily preventive maintenance checks and
time, and to assure that the equipment is serv-
s e r v i c e s (para 4-4).
b. Monthly preventive maintenance checks
a. Systematic Care. The procedures given in
Quarterly preventive maintenance checks
systematic care and cleaning essential to
proper upkeep and operation of the equipment.
b. Preventive Maintenance Checks and Serv-
ices. The preventive maintenance checks and
services charts (para 4-5, 4-7, and 4-10) out-
f. Touchup painting instructions (para 4-
line functions to be performed at specific in-
tervals. These checks and services are to main-
g. General troubleshooting procedures (para
t a i n Army electronic equipment in a combat
serviceable condition; that is, in good general
( p h y s i c a l ) condition and in good operating
c o n d i t i o n . To assist operators in maintaining
(1) Replacement of indicator lamps
combat serviceability, the charts indicate what
to check, how to check, and the normal condi-
( 2 ) Replacement of knobs (para 4-16b).
tions; the References column lists the illustra-
t i o n s , paragraphs, or manuals that contain
(4) Adjustment of microammeter (para
d e t a i l e d repair or replacement procedures. If
t h e defect cannot be remedied by performing
t h e corrective action indicated; higher cate-
g o r y maintenance or repair is required. Rec-
(6) Servoamplifier circuit board A1 cover
ords and reports of these checks and services
must be made in accordance with the require-
(7) Limit switch adjustment (on cou-
m e n t s set forth in TM 38-750.
4 - 2 . T o o l s , M a t e r i a l s a n d T e s t E q u i p m e n t 4-4. Daily Preventive Maintenance Checks
a . Tool Kit, Electronic Equipment TK-101/
G (or equivalent).
Perform the maintenance functions indicated
b. Fine sandpaper, #000.