air bleeding SKODA 120 LS 1980 Workshop Manual

I 5.7*
1
5.8
sell-lubricoting type
but the greose is intended
to rid the beorings of ony moisture which moy
get to them post
the seols in certoin circum-
stonces. Apply the greose
gun
till the lubricont
seeps post
the upper rubber cuP.
Front Wheel Toe-in
For meosuring
ond odiusting the toe-in, see
Chopter 6.1.
Fliminqtion of
King Pin PloY
Remove the coter pin
of the king pin
nut ond
rotote the nut to the next cotter pin
hole pos-
ition. lf the ploy
is not elinrinoted ond no
friction sets in with the nut in this position,
continue rototing it
until this condition is
ochieved -
see Chopter 6.5, porogroph 21. Lock
the nut in the f irrol position
with the cotter pin
Fig. 15.712 -
King Pin Hold-down
cnd Adjusting Ntit
Note: irr the list
of servicing (mointenonce)
iobs,
I,he porogroph on "Checking
Front ond Reor
Wlreel Brokes" includes
o) inspection of the broke-shoe lining ond its
replocement, if necessory
b) in the cose of the front broke, the cleoning
ond inspection of the protective (dust) cups
of pistons octing on the broke pods (shoes),
in the cose of the reor broke, the inspection
of the wheel cylinder dust cups (boots),
ond
in both coses the replocement of domoged
ports.
i5.8 BRAKE SYSTEM
Broke Fluid Tonlk -
filling
The brake f luid tonk is instolled in the boot
{inoin luggcrge comportment)
cnd closed with Fig.
15.8/1 -
Broke Fluid Tonk
o screw cop. lt serves
olso the r:lutclr lryrlrotrlic
control systenr. Keep the brqke fluid level withirr tlre ronge
of the moximum filling, i.
e., not lower
thon
10 mm below the "MAX"
mork or so high thot
it just
covers the pcrtition
woll of the tonk
which con be seen on looking inside the tonk.
Observe obsolute cleonliness when filling
in
the broke fluid through the screen in the tonk
filler neck. Refer to
Chopter 15.2 for recon'r.
mended broke fluid bronds. For broke fluid hondlinq precoutions, see
Chopter 9.9.
Brqke Fluid Chonge
The broke f luid obsorbs otmospheric humidity
ond the chcnge of its properties
is opt to offect
broking ond even bring obout corrosion of some
ports of the broke system.
The time period,
in which these chonges
con
toke ploce,
connot be defined with ony pre-
cision. Therefore forestoll troubles ond chonge
the broke fluid in the broke ond clutch system
every few yeors (preferobley
two to three
yeors ) .
Suck out the old f
luid from
the tonk, fill in
fresh fluid, ond remove the bleeding screws
one
ofter onother to let the old fluid be forced out
by the fresh
one from oll bronches of the broke
line to the clutch -
see the broke ond clutch
bleeding procedure.
Broke Bleeding Air con get
into the hydroulic system
of the
brokes either due to lock
of the broke fluid in
the tonk (low
level) or when removing
or dis-
montling some ports
of the hydroulic line. lf
there is o smoll omount of oir in the hydroulic
system, the pedol broke feels "spongy"
ond the
broke efficiency decreoses. Ingress of o lorge
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