Dnepr MT9 - Page 97

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•

•

..

.

press

ing

down

the

upper

casing,

compress

the

shock

absorber

spr

ing

by 5

to

10

mm

and

r

emove

the

slide

blocks;

remove

the

upp

er

casing,

s

pring

and

lower

casing

(Figs.

33

8nd

34);

using

a

special

wrench,

uns

c

rew

the

nut

of

the

reservoir,

grasp

the

u

pper

e

nd

piece of

the

rod

and

pull it up

with j

erks.

This

must

cause

the

rod

togeth-

er

with

the

piston,

bearing,

cylinder

and

lo-

wer

valve

body to

move

outwards

.

If

this

method

of

removal

(with

li

ght

jerks)

does

not

help,

then

slig

htly

raise

the

nut

of

the

re

servoir

and

c<~r

e

fully

extract

the

scaling

ring;

immerse

the

rod to

gethe

r

with

the cylin-

der

and

l

ower

valve

body

into

kerosene

or

petro

l

and,

ho

lding

the

cyl inder with

the

left

hand,

rock

the

rod up

and

down

severa

l ti-

m

es

wit

h

the

rig

ht

hand

unti

l no

stiffness

is felt in

the

movem

e

nt

of

the

pi

sto

n.

After

tak

in

g

out

the

cylinder

wit

h

the

rod from

the

k

erosene

,

grasp

tlJ

e rod

with

one

ha

nd,

a

nd

the

cylinder

with

th

e

other,

and

, by

sh

arply

pus

hin

g

the

rod,

dri ve

the

bearing·

out

of

the

cy

lind

er;

attach

the

rod

to the

en

d piece in

the

vice,

screw

off

the

nut,

r

emove

the pi

ston,

valve,

spring

and

stop;

fir

st

part

the lock-

ing

ring

by

means

of a

sc

r

ew

driv

er

or

plier

s

e1

nd

th

en

take

it off.

Next,

r

emove

the

fol-

lowing:

the

bearing,

gl

and

spring,

gl

and

wa

sher,

nut

tog

et

h

er

w ith gl

and,

a

nd

buf-

fe

rs. Be

ca

reful w

hen

removing

th

e

nut

with

the

gland

since

the

gla

nd

edges

may

be dam

aged

by

th

e

thr

ea

d

at

the

e

nd

of

the

rod;

press

the

gla

nd

out

of the

nut;

insert

a cop

per

or

wooden

drift

of 15 to

19

mm

dia.,

ha

ving

a 5 to 7

mm

dia. r

ecess

at its l

ower

end,

into

the

shock

absorber

cy

-

lind

er.

Holding

th

e cyl

in

der

by hand,

st

rike

the

drift

with

a h

am

mer

and

remove

the

suc-

tion

valve

body

from

the

tub

e.

Thoroughl

y

and

carefully

w

as

h

th

e dis- Fig.

33.

Shock

absorber

mantled

parts

in kero

se

n

e,

pa

rti

c

ular

care

s

hould

be

taken

to

check

th

em

for the a

bs

e

nce

of de

nt

s,

scores,

si

gn

s

of

wear,

cracks,

fluid

le

akage

from t

he

r

ese

r

voir.

Replace

the

de-

fective

parts,

if

any

.

"f

1

93S.

97'

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