MPI 40 Series - Head Load Solenoid

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the

pin

and

force

it

toward

the

left

(as

viewed from

front

of

drive},

first

from

the

top

of

the

frame and

then

from

the

bottom.

J.

The

clutch

arm

assembly

can

now

be removed from

the

frame.

Be

careful

not

to

lose

the

spring

mounted

under

the

clutch

arm.

K.

To

replace

the

clutch

arm

perform

the

preceeding

steps

in

reverse

order.

4.5.5 Head Load Solenoid

To

remove

the

solenoid,

proceed

as

follows

(refer

to

figure

4-8):

A.

Remove

the

Control

Electronics

PCBA

(see

paragraph

4.5.1.1).

B.

Remove

the

wires

from

the

two

solenoid

lugs.

C. Turn

the

drive

on

its

side

and remove

the

solenoid

mounting

screw

from

bottom

of

drive

chassis.

D.

Solenoid

is

now

free.

I CAUTION I

Be

careful

not

to

lift

solenoid

load

arm

straight

up

so

that

it

bends

the

upper

arm

assembly

past

its

normal

unloaded

position.

E.

Tilt

solenoid

up and

slide

the

load

arm

out

from

under

the

upper

arm

assembly

and

out

of

the

drive

chassis.

To

replace

the

solenoid

perform

the

preceding

steps

in

the

reverse

order;

be

sure

that:

A.

The

top

part

of

the

load

arm

is

beneath

the

top

step

of

the

upper

arm

(refer

to

figure

4-6).

B. Wires

are

not

pinched

between

the

bottom

of

the

solenoid

and

the

disk

drive

chassis.

c. Wires do

not

interfere

with

solenoid

spring.

4-14

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