Yangdong Co. Y90 Series Spezifikationen PDF herunterladen (Seite 16)

6.Check

the

tension

of

the

fan

belt,and

readjust

it

if

necessary.

7.Fill

the

nipple

of

cooling

water

pump

bearing

with

ZG-

4

calciumbased

grease

with

a

grease

gun.

8.Clean

out

the

dust

in ,intake manifold'lclean

the

inside

of

the

aircleaner,brush

otT

the

dust

gathered

on

the

paper

element

surface,and

clean

the

inside

of

the

exhaust

manifold

and

silencer.

9.After

every

200

accumulated

operating

hours,check

the

injection

pressure

and

spray

pattern

of

iniection.lf

necessary

..

dismantle

the

injector,clean

the

nozzle

set,and

readiust

the

injection

pressure.

IO.Check

the

voltage

of

battery

and

the

specific

gravity

of

battery

acid

..

which

should

be

within

1.27r'_ 1.28(

at

ambient

temperature

of

20°C

).

When

it is less

than

1.

14,the

battery

should

be

recharged.The

level

of

battery acid

should

be I 0

.'~--,

15mm

above

the

pole

plate.lf

insufficient

add

distilled

water

to

the

required

level.

11.AII parts

dismantled

for

maintenance

should

be

washed,and

cleaned

and

correctly

reasselnbled.l\fter

reasselnbly.stat1 the

~nginc

and

check

\vhether

it

is

in

proper

operation,AII

faults

should

be

retnedied.

ill

.Maintenance

after

Everv 500 Accumulated

Operatine

Besides

the

work

of

Inaintenance

after

every

100

acculnulated

operating

hours

..

the

following

items

are

needed:

I.Check

the

injection

pressure

and

spray pattern

of

the

injector.lf

necessary

..

dislnantle

the

injector'lclean

the

nozzle

set

and

readjust

the

injection pressure.

2.Check

fuel

delivery

of

the

injection

pump,and

recalibrate it

on

a

test

bench

if

possible.

Check

the

injection tilning,and

readjust

it

if

necessary_

3.(~heck

the sealing

of

the

intake and

~xhaust

valvcs.lf

necesary

..

grind

and

lap the

valve

seats

and

readjust

the

valve

lashes.

4.Check

the

tightness

of

the

connecting

'.>a

roo.,mian

bearing

cap

and

flywheel bolts.

5.Retightcn

the

cvlinder

head bolts

and

adjust

the

valve

lashes

according

to

directions

given

in

section

4.

6.C:Iean

or

replace

the

paper

elclnent

of

air

cleaner.

7.('lcan

the

cooling

~ystem.T'he

cleaning

solution

can

be

prepared

hy

adding

150 granls

ot

caustic

soda(Na()H)

to every litre

of

v~ater.Before

cleaning_drain

the

systelll cOlnpletely

and

then

fi

II

in

the

saIne

capacity

with

cleanIng

solution.Let it relnain in

the

systenl

f<lr

8

r-

-~

12h.

Then

start

the

en.glne

and

run

it

until

the

tenlperature

of

cleaning

solution

reaches

normal

operating

tClnperature.Stop

the

engine

and

drain

the

system

itnnlediately in

order

10

avoid

settling

of

scale

\vithin

the

systetn.Final1y,tlush the

system

with

clean

w'ater until all

seditnent

is

flushed

out.

3-2

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