Cadence ZRS C8 Betriebsanleitung PDF herunterladen (Seite 33)

SCCt|ON V.

TROUBLE

SHOOTING

AT

ORGANIZATIONAL

MAINTENANCE

LEVEL

O

40.

Scope

a.

The

trouble

shooting

and

repair

r.vork

that

can

be

performecl

at

the

organizational

mainte_

nance

level

is

necessarily

limited

in

scope

by

the

tools,

test

equipmeut,

and

replaceable

parts

issued,

ancl

by

the

existing

tactical

situation.

Accordingly,

trouble

shooting

is

based

on

the

performance

of the

equipment

and

the

use

of

the

senses

in

determining

such

troubles

as

burned-out

tubes,

damaged

insulators,

etc.

ó.

The

paragraphs

which

follow

in

this

sec-

tion

help in

determining

which

of

the

compo_

nents

is

at fault

and

in

localizing

the

fault

in

that component

to

the

defective

item,

such

as

a

tube

or fuse.

41.

VÍsuol

Inspection

o.

Failure

of this

equipment

to operate

prop_

erly will

usually

be caused

by

one

or more

of

the

follou'ins

faults:

(

1)

Improperly

connecterl

or

brokerr

rlower

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(e)

(10)

corcls

or

pìugs.

Improperll'

connected

headphones.

Burned-out

fuses.

Defective

tubes.

Relay

contacts

burned

or

pitted

be-

cause

of

overloads.

Inactive

(dirty

or cracked)

crystal.

Defective

sr,vitches.

Defective

vibrators.

Defective gear

or tuning

mechanism.

Dirty

or

bent

plates

of

variable

capac-

itor.

ó.

When failnre

is

encoutrterecl

ancl

the

cause

is

not

immediately

apparent,

check

as many

of

the

above

iterns

as is

practicable

before

srarr-

ing

a detailed

examination

of

the

radio

set.

If

possible,

obtain

information

from

the

operator

of

the equipment

regarding

perfor.mance

at the

iime

trouble

occurred.

.{GO

3134

c.

Visuallv

inspect

the

antenna

for

obvious

abnormalities.

42.

Trouble

Shooting

by

Using

Equip-

ment

Performonce

Checklist

a.

General.

The

equipment perfolntance

checklist (par.

43)

r,vill

help

the

oper.ator

to

locate

trouble

in

the

equipment.

The

list

gives

the

item

to

be

checked,

the

conclition-q

unrler

which

the

item

is

checkecì,

the normal

inclic:r-

tions

and

tolerances

of

correct

operation,

ancl

the

corrective

measures

the

operator

can

take.

To

use

this

líst,

f

ollotu

tlte

items

in

nutnerícal

Sequence,

b.

Actiotz

ot.

Condition.

For

some

items,

the

information given

in

the

action

or

conclition

column

consists

of

specific

control

settings

with

which

the

item

is

to

be

checked.

For

other

items,

it

represents

an

action

that

must

be

taken

to

check

the

normal

indication

given

in

the

normal

indications

column.

c. l,trorntal

Inclícatíons.

The

normal

inclica-

tions

listed

include

the

visible

and

auclible

signs

that

the

operator

should perceive

rvhen

he

checks

the items.

If

the inclications

are

not

normal,

the

operator

shor"rld

apply

the

recom_

mencled

corrective

measures.

cl.

Correctire

XIt,astu.es.

The

corrective

meas-

ures listed

are those

that

the

operator

can

make

without

turning

in

the

eqr:ipment

for

repairs.

A reference

in

the

table

to

chapter

b

indicates

that

the

trouble

cannot

be correctecl

during

operation

and

that

trouble

shooting

b1,

an

ex_

perienced

repairman

is

necessarl,.

If

ilre

re-

ceiver

is

completely

inoperatil'e

or

if

the r.ectim-

mended

corrective

measrtres

rlo

not lielrl

re-

sults,

trouble

shooting

is

necess:ir'1'.

llriu,er-er,

if

the

tactical

situation

rc,riuiles

thirt

c,tnurLrni-

cation

be maintainerl.

luttl

it'

t he sct

is

not

completely

inoperatir-e.

t1Ìr,

r,pet'it1

r)t'

nìLlst

main-

tain

the set

in

operatirrn

trs lrng

rr,{ it

is

ttossibje

to

do

so.

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