Delta THINKPAD R40 Technical Information download pdf (Page 22)

v

After

service,

reinstall

all

safety

shields,

guards,

labels,

and

ground

wires.

Replace

any

safety

device

that

is

worn

or

defective.

v

Reinstall

all

covers

correctly

before

returning

the

machine

to

the

customer.

Electrical

safety

Observe

the

following

rules

when

working

on

electrical

equipment.

Important

Use

only

approved

tools

and

test

equipment.

Some

hand

tools

have

handles

covered

with

a

soft

material

that

does

not

insulate

you

when

working

with

live

electrical

currents.

Many

customers

have,

near

their

equipment,

rubber

floor

mats

that

contain

small

conductive

fibers

to

decrease

electrostatic

discharges.

Do

not

use

this

type

of

mat

to

protect

yourself

from

electrical

shock.

v

Find

the

room

emergency

power-off

(EPO)

switch,

disconnecting

switch,

or

electrical

outlet.

If

an

electrical

accident

occurs,

you

can

then

operate

the

switch

or

unplug

the

power

cord

quickly.

v

Do

not

work

alone

under

hazardous

conditions

or

near

equipment

that

has

hazardous

voltages.

v

Disconnect

all

power

before:

–

Performing

a

mechanical

inspection

–

Working

near

power

supplies

–

Removing

or

installing

main

units

v

Before

you

start

to

work

on

the

machine,

unplug

the

power

cord.

If

you

cannot

unplug

it,

ask

the

customer

to

power-off

the

wall

box

that

supplies

power

to

the

machine

and

to

lock

the

wall

box

in

the

off

position.

v

If

you

need

to

work

on

a

machine

that

has

exposed

electrical

circuits,

observe

the

following

precautions:

–

Ensure

that

another

person,

familiar

with

the

power-off

controls,

is

near

you.

Attention:

Another

person

must

be

there

to

switch

off

the

power,

if

necessary.

–

Use

only

one

hand

when

working

with

powered-on

electrical

equipment;

keep

the

other

hand

in

your

pocket

or

behind

your

back.

Attention:

An

electrical

shock

can

occur

only

when

there

is

a

complete

circuit.

By

observing

the

above

rule,

you

may

prevent

a

current

from

passing

through

your

body.

Safety

information

18

ThinkPad

R40

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