Milwaukee 6184-01 Operations Instructions download pdf (Page 50)

CLEANING

This

instrument

should

be

cleaned

as

often

as

operating

conditions

require

.

Accumulation

of

dirt

on

components

acts

as

an

insulating

blanket

and

prevents

efficient

heat

dissipation

which

can

cause

overheating

and

component

breakdown

.

CAUTION

Avoid

the

use

of

chemical

cleaning

agents

which

might

damage

the

plastics

used

in this

instrument

.

In

particular,

avoid

chemicals

that

contain

benzene,

toluene, xylene,

acetone,

or

similar

solvents

.

EXTERIOR

Loose

dust

accumulated

on

the

front

panel

can

be

removed

with

a

soft

cloth

or

small

brush

.

Dirt

that

remains

can

be

removed

with

a

soft

cloth

dampened

with

a

mild

detergent

and

water

solution

.

Abrasive

cleaners

should

not

be used

.

INTERIOR

Dust

in

the

interior

of

the

instrumentshould

occasionally

be

removed

due

to

its

electrical

conductivity

under

high-

humidity

conditions

.

The

best

way

to

clean

the

interior

is

to

blow

off

the

accumulated

dust

with

dry,

low-pressure

air

.

Remove

any

dirt

which

remains

with

a

soft

brush

or a

cloth

dampened

with

a

mild

detergent

and

water

solution

.

A

cotton-tipped

applicator

is

useful

for

cleaning

in

narrow

spaces

.

This

section

of

the

manual

contains

information

for

performing

preventive

maintenance,

troubleshooting,

and

corrective

maintenance

for

this

instrument

.

NTIV



M



I

NTNAN

C

SWITCH

CONTACTS

Preventive

maintenance

consists

of

cleaning,

visual

inspection,

lubrication,

etc

.

Preventive

maintenance

performed

on

a

regular

basis

may

prevent

instrument

breakdown

and

will

improve

the

reliability

of

the

instrument

.

The

severity

of

the

environment

to

which

this

instrument

is

subjected

determines

the

frequency

of

maintenance

.

A

convenient

time

to

perform

preventive

maintenance

is

preceding

adjustment

of

the

instrument

.

Switch

contacts

and

pads

are

designed

to

operate

dry

for

the

life

of

the switch

.

However,

as

the

switches

are

not

sealed,

dust

attracted

to

the

contact

area

may

cause

switch

contacts

to

become

electrically

noisy

.

Cleaning

may

be

accomplished

by

flushing

the

contact

area with

isopropl

alcohol

or

kelite

(1

part

kelite

to

20

parts

water)

.

Do

not

use

chemical

cleaning

agents

that

leave

a

film

or

that

might

damage

plastic

parts

.

Do

not

use

cotton

swabs

or similar applicators to

apply

cleaning

agents,

as

they

tend

to

snag

and

leave

strands

of

cotton

on

switch

contacts

.

Should

it

become

necessary

to

remove

a

switch

for

replacement

or

cleaning,

refer

to

Component

Removal

and

Replacement

in

this

section

.

VISUAL

INSPECTION

Section

4---71387

This

instrumentshould be

inspected

occasionally

for

such

defects

as

broken

connections,

improperly

seated

semiconductors,

damaged

circuit

boards,

and

heat-

damaged

parts

.

The

corrective

procedure

for

most

visible

defects

is

obvious

;

however,

particular

care

must

be

taken

if

heat-

damaged

components

are

found

.

Overheating

usually

indicates

other

trouble

in

the

instrument

;

therefore,

it

is

important

that

the

cause

of

overheating

be

corrected

to

prevent

recurrence

of

the

damage

.

LUBRICATION

Generally,

there

are

nocomponents

in

this

instrument

that

require

a

regular

lubrication

program

duringthe

life

of

the

instrument

.

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