Skoda 105 s 1980 Workshop Manual page 201

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the ploces from which you hove removed the
sticking dirt ogoin, ond wipe the entire body-
work diy, including chromium'ploted ports, with
chomois leother. Wosh ond wlpe dry the vor'
nished surfoces with uniform strokes in one
direction, i. e. not by circulor movements.
After hoving wiped oll vornished ports of the
b o d y w o r k d r y , p o l i s h t h e m w i t h o s o f t ( f l o n n e l )
d u s t e r . D o n o t u s e p o l i s h o f o n y k i n d .
lf the bodywork is so dirty thot it connot be
woshed cleon with woter, use cor shompoo.
lf it is necessory to refreshen the gloss of the
finish, use o cor polish occording to instructions
of its monufocturer.
To wosh the underbody, use o hose ond
running woter, worm or cold; never use petrol,
kerosene, diesel oil, etc.
Remove greose spots with o cloth, dry or
sooked in petrol if necessory. To remove tor, dip
the cloth in kerosene or o speciol tor removing
preporotion, ond rub the spots. Then immediotely
wosh owoy oll troces of kerosene or the tor
r e m o v i n g s o l u t i o n , o n d r e p o l i s h t h e s p o t s w i t h
o c o r p o l i s h .
TOUCHING.UP VARNISH
Preporotion:
Removol of Polishes etc.
When touching up o repoired bodywork (dom-
oged surfoce finish), it is importont to olso
cleon the surrounding vornish to prevent the
t o u c h i n g - u p p o i n t f r o m f l o k i n g o f f l o t e r o n i n
ploces of overlopping.
R e m o v e c o r p o l i s h e s w i t h o s h o m p o o . S i l i c o n e
o i l , c o n t o i n e d i n s o m e b r o n d s o f p o l i s h e s o n d
preventing the odhesion of the touching-up
point, con be woshed owoy only with o speciol
preporotion. !n Czechoslovokio, this is for
e x o m p l e V E N E D I N . R u b w i t h t h i s p r e p o r o t i o n
olso vornished oreos which will be roughened
by grinding where the bore ploces poss into
ground ond cemented oreos.
Removol of Rust
R e m o v e r u s t m e c h o n i c o l l y b y g r i n d i n g o r
rubbing with emery poper ond woshing with
c derusting ogent (for exomple SK 2, which is
bosicolly o 300/s phosphoric ocid).
Procedure: f irst cleon the rusty spot with
e m e r y p o p e r N o . 8 0 o n d 1 0 0 o r u s i n g o g r i n d e r .
Then rub the spot with o 15 0/6 solution of
phosphoric ocid (SK 2 deruSter) heoted up to
4 0 o C . W h e n u s i n g o c o l d s o l u t i o n , i t s c o n c e n -
trotion must be obout 300/e (undiluted SK 2
deruster). Work in rubber gloves.
After hoving removed the rust, wosh the spot
twice. First with tepid or cold woter, soft or
softened by odding 2 to 2.501s of sodo, then
with o solution of chromium trioxide (1 gr. to
1 litre of soft woter) heoted up to 80oC (thls is
the so-colled possivoting rinse). Now let the
spot dry.
Degreosing
Degreose the spot to be touched up by rub-
bing it down with trichloroethylene or technicol
petrol.
1. Touching-up with low-boking points -
the most perfect procedure
o) Cleon the touched-up spot, derust ond
degreose it (see the previous porogrophs on
preporotion)
b) Sproy over with priming point
c) Let the priming point dry ot 80oC to 110oC
for o period of 50 or 15 minutes (50 minutes
o t 8 5 o C , 1 5 m i n u t e s o t 1 1 0 o C )
d) Coot over with synthetic cement or poly-
ester cement
e) Let the cement dry ot 85oC or 110oC for
o period of 50 or 15 minutes respectively;
when using polyester cement, the drying
period con be shortened - this cement dries
of normol temperoture
f ) Grind under woter with emery poper No.280
to320till the spot is perfectly flot ond even,
ond let it dry
g ) S p r o y w i t h t o p - c o o t v o r n i s h
h) Let it dry ot 80oC to 110oC for o period of
15 or 50 minutes respectively; ofter boking,
t h e v o r n i s h h o s o h i g h g l o s s o n d i t i s n o t
necessory to polish it
i) Use o polish to remove ony visible troces of
tronsition between the originol ond the new
v o r n i s h .
2. Touching-up with nitro-combinotion vornish
o) Cleon, grind, derust, ond degreose the spot
to be touched up
b ) A p p l y p r i m i n g p o i n t w i t h o b r u s h o r o
sproy-gun
c) Level up, if necessory, with on oil-bose
cement (once or twice)
d) Let it dry lor 24 hours ond then grind with
emery poper No.220
e) Sproy the entire touched-up oreo with
sproying cement ond let it dry for 24 hours
f) Grind with emery poper No. 280 ond 320
under woter till the oreo is perfectly smooth
o n d f l o t , o n d l e t i t d r y
g) Sproy the touched-up spot with o vornish
prepored by mixing low-boking ,vornish
(Toolol ond touching-up vornish (300/e); use
exclusively o nitro-thinner for diluting the
v o r n i s h
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