Chapter 4. MAINTENANCE

TM 11-6625-1702-12

CHAPTER 4

MAINTENANCE

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.

817-1213).

4-1. Scope of 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-

equivalent).

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).

iceable.

b. Monthly preventive maintenance checks

a. Systematic Care. The procedures given in

and services (para 4-6).

paragraphs 4-4 through 4-13 cover routine

Quarterly preventive maintenance checks

systematic care and cleaning essential to

a n d services (para 4-9).

proper upkeep and operation of the equipment.

d. C l e a n i n g ( p a r a 4 - 1 1 ) .

b. Preventive Maintenance Checks and Serv-

ices. The preventive maintenance checks and

e. Visual inspection (para 4-8).

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-

12).

tervals. These checks and services are to main-

g. General troubleshooting procedures (para

t a i n Army electronic equipment in a combat

4-14) .

serviceable condition; that is, in good general

( p h y s i c a l ) condition and in good operating

h. Repairs and adjustments (para 4-16).

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

( p a r a 4-16a).

to check, how to check, and the normal condi-

( 2 ) Replacement of knobs (para 4-16b).

tions; the References column lists the illustra-

(3) Replacement of fuses (para 4-16c).

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

4-16d) .

t h e defect cannot be remedied by performing

( 5 ) Coupler removal (para 4-16e).

t h e corrective action indicated; higher cate-

g o r y maintenance or repair is required. Rec-

(6) Servoamplifier circuit board A1 cover

r e m o v a l (on coupler) (para 4-16f).

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.

p l e r ) (para 4-16g).

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

and Services

a . Tool Kit, Electronic Equipment TK-101/

G (or equivalent).

Perform the maintenance functions indicated

b. Fine sandpaper, #000.

4-1

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