Handling ESD-Sensitive Parts

Many products use parts that are known to be sensitive to electrostatic

 

discharge

 

(ESD). To prevent damage when you work with

ESD-sensitive

 

 

 

 

parts,

observe

the

following instructions. Do

these

in

addition

to

taking

all

the usual

 

precautions, such as switching off the power

and

unplugging

the

power cord before removing adapter cards.

 

 

 

 

 

 

 

 

 

 

 

 

Keep

the

ESD-sensitive part in

its

original shipping

container

(a

 

special

ESD bag)

until you are ready to

install

the

part

into

 

the

machine.

 

 

Make the fewest possible movements with your body

to

 

prevent

an

 

 

increase

of

 

static

electricity from

clothing

fibers,

carpets,

and

furniture.

Put

the

 

ESD wrist strap on your wrist. Ensure the

machine

is turned

off.

Connect the wrist strap to the serial bracket mounting screw. This

 

 

discharges

any

static

electricity

in your body to the

machine

frame.

Hold

the

ESD-sensitive part by

its

edge

connectorDo

shroud

(cover).

 

 

not touch its Ifpins.you are removing a pluggable module, use

the

 

 

 

 

correct

tool.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Do

not

place the ESD-sensitive part on the machine

cover or on a metal

table. If you need to put down

the ESD-sensitive

part

for

any

reason,

first put it into its special bag.

 

 

 

 

 

 

 

 

 

 

 

 

 

Machine

covers

and

metal

tables

are

electrical

grounds. They

increase

 

the risk of damage because they make a discharge

path

from

 

your

body

through the ESD-sensitive part. (Large metal objects

can

be

discharge

 

paths

without

being

grounded.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Prevent ESD-sensitive parts from being accidentally touched by other personnel or customers. Reinstall machine covers when you are not working on the machine.

If possible, keep all ESD-sensitive parts in a grounded metal cabinet (case).

Be extra careful while working with ESD-sensitive parts when cold-weather heating is used because low humidity increases static electricity.

4-16

Page 144
Image 144
IBM 2142, 2140 manual Handling ESD-Sensitive Parts