CHAPTER 4. ORGANIZATIONAL MAINTENANCE INSTRUCTIONS

TM 11-6825-2843-14

CHAPTER 4

ORGANIZATIONAL

MAINTENANCE

INSTRUCTIONS

Section

INTRODUCTION

Services

4-1. Tools and Test Equipment Required

a. To insure that the test set is always ready for

Tools and test equipment required at organizational

operation, it must be inspected systematically so that

maintenance consists of:

defects may be discovered and corrected before they

a. T o o l K i t , E l e c t r o n i c E q u i p m e n t T K - 1 0 1 / G .

r e s u l t in serious damage or failure. The necessary pre-

b. T o o 1 K i t , E l e c t r o n i c E q u i p m e n t T K - 1 0 5 / G .

ventive maintenance checks and services to be per-

C. Multimeter

AN/USM-223.

f o r m e d are listed and described in table 4-1. The item

d. T e s t S e t , E l e c t r o n T u b e T V - 7 / U .

numbers indicate the sequence of and minimum in-

4-2.

Repainting

and

Refinishing

lnstruc-

spection required. Defects discovered during operation

tions

o f the test set will be noted so that repairs maybe made

Remove dust and corrosion from metal surfaces by

w h e n test set operation has ceased. Stop operation im-

lightly sanding the surfaces with fine sandpaper.

mediately if a deficiency is noted during operation

B r u s h two thin coats of paint on the bare metal to pro-

which would damage the equipment. Record all defi-

tect it from further corrosion. Use the following

ciencies together with the corrective action taken on

references as a guide to repainting and refinishing

the appropriate maintenance form (TM 38-750).

a. S B 1 1 - 5 7 3 .

b. S o m e o f t h e i t e m s t o b e i n s p e c t e d a r e l o c a t e d i n

b. A R 7 4 6 - 5 .

the interior of the teat set and are only accessible by

C. T B 4 3 - 0 1 1 8 .

removing the panel assembly. Refer to paragraphs 4-7

through

4-10

for

removal

procedures.

4-3.

Preventive

Maintenance

Checks

and

Table

4-1.

Organizational

Prevention

Maintenance

Checks

and

Services

W-Weekly

Q-Quarterly

D-Daily

Task

hours

Task

hours

Task

hours

required

0.4

required:

0.7

required

1.3

ITEM TO BE INSPECTED

Worktime

PROCEDURE

(T/H)

0.1

TEST

SET

EXTERIOR

Check

see

that

carrying

handle

securely

mounted

and

that

case

and

cover

are

not

damaged,

Secure the cover; make certain the latches and hinge work properly.

0.1

CLEANINESS

EQUIPMENT

Inspect the exterior surfaces of the test set. They should be clean, free of dust, grease, and fungus.

0.1

CONTROL

PANEL

Check

see

that

controls

and

indicators

are

securely

mounted

and

without

visible

evidence

damage;

that

switches

have

positive

action;

that

variable

controls

rotate

freely;

that

indicator

pointers are neither broken nor bent and rotate freely and the POWER 16 lights when power is

applied.

0.1

TEST

SET

INTERIOR

Check

all

components

for

proper

mounting,

check

for

signs

leakage

overheating,

and

cracked

blistered components; check for frayed, broken, or abraded wiring; check solder connections to in-

sure proper electrical conduction, and check for the accumulation of dust, dirt, or grime.

0.3

SERVOAMPLIFIER

Test all tubes for proper emission and absence of internal shorts.

TEST

CABLES

0.1

Check

for

frayed,

broken,

kinked,

abraded

conductors;

damaged

sleeving

and

outer

tubing,

damaged

connectors;

loose

missing

clamps.

0.3

TEST

SET-SELF-TEST

Check to see that the teat set is functioning properly by performing the procedure given in paragraph

2-4.

0.1

PUBLICATIONS

Check DA Pam 310-4 to see that all publications are complete, serviceable, and current.

MODIFICATIONS

0.1

Check DA Pam 310-7 for applicable MWO's.

Check the test set to determine if MWO's have been performed. All URGENT MWO's must he ap-

plied

immediately.

All

NORMAL

MWO's

must

scheduled.

4-1