Skoda 105 s 1980 Workshop Manual page 179

Strike the slip-over ring off the circlip
(towords the motor windlng). Open the circlip
ond pull it off the shoft together with the re-
leosed ports.
8. lf necessory, re-turn the commutotor ond
scrope or mill out the insulotion between the
lominotions. "Mikonit" should be 0.4 to 0.8 mm
below the octive surfoce.
Note: The switch connot be further token
opat. lf defective, lt hcs to be reploced with
o new one. When cleoning ports of the storter
motor, do not dip the ormoture or the pinion
with the idler into petrol or onother degreosing
ogent.The some opplles to the end shieldswith
beorings. By dipping them in o degreosing
ogent, the beorings become procticolly worth-
less"
Storter Motor Reossembly
1. Lubricote the hellx of the ormoture shoft
with greose - see Chopter 15.2 'Lubriconts of
foreing mokeu ond fit the pinion with the idler
o n d t h e s l i p - o v e r r i n g i n p o s l t i o n . F i t t h e c i r c l i p
into the groove in the shoft, ond drive the slip-
on ring over it. The pinion with the idler must
move freely olong the shoft.
2. Slip the respective woshers on the shoft in
their originol sequence (corrier ring, distonce
r i n g , f i b r e r i n g , d i s t o n c e r i n g ) o n d i n s e r t t h e
ormoture with the engoging lever into the drive
e n d s h i e l d .
3. Suspend the switch ormoture into the
pre-engoging lever ond bolt down the switch
lightly. Fit the lever pin into the drive end
shield ond lock it in position with the retoiner.
4. Tighten the copscrews of the switch ond
f i t t h e s t o t o r o n t h e d r i v e e n d s h i e l d .
5. Instoll the respective woshers into the
c o m m u t o t o r e n d s h i e l d i n t h e i r o r i g i n o l s e -
quence (the dished wosher with its centre
f o c i n g t h e s h i e l d , t h e n t h e p l o i n w o s h e r , t h e
toothed wosher, ond the drive wosher).
6. Fit the commutotor end shield with lifted
brushes on the shoft (in the position occording
to the recess for the excitotion outlet ond the
notch) ond screw in the clomping bolts.
7. Instoll the brush interconnecting strip ond
bolt it down together with the field winding
outlets to the positive brush holders, lower the
brushes.
8. Fit the Insuloting strip in position ond bolt
down the cover.
9. Test the storter mottr.
Diognosing Storter Motor Defects in Cor
o) lf the storter motor refuses to operote, look
first for on interrupted connection between
the bottery ond the storter motor, the engine
eorthing ond the storter motor, or the engine
eorthing ond the bottery. lf these connec-
tions ore in order (current flows to the ter'
DK 1575
Fig. 13.10/3 - Storter Motor Testlng Connection
minols u30" ond "50" with switched on
ignition), stort looking for o foilure of the
storter motor switch. Even in this instonce,
the couse con be o fully dischorged or foulty
bottery.
b) lf the storter motor continues running even
o f t e r t h e i g n i t i o n k e y h o s b e e n s w i t c h e d i n
the switch box from the position
"START",
it hos to be stopped without ony deloy by
disconnecting the bottery (using its eorthed
p o l e ) .
c) lf the storter motor hos no power to cronk
the engine, stort with switched-on heod-
lights. A morked dimming indicotes c poorly
chorged bottery.
Tentotive Checking of Storter Motor
Outside Cor
C o n n e c t t h e t e r m i n o l
" 3 0 ' o f
t h e s t o r t e r
motor to o properly chorged bottery ond incor'
porote on ommeter with o wide meosuring ronge
into the circuit - see Fig. 13.10/3. Stort the
engine (feed current to the terminol
"50"). The
volue of the current ot idling speed must not
exceed 65 omperes (not considering the peok ot
the first momentous deflection).
The storter motor must run noiselessly,
smoothly, ond the pinion must move smoothly
into ond out of the rest position (engoge ond
d i e s e n g o g e ) . T h e e n g o g e d p i n i o n m u s t n o t r o -
tote direct on the foce of the slip-on ring. The
run-out of the storter motor must not lost longer
thon 8 seconds ofter the disconnection of the
switch from the current supply.
Inspect the brush pressure springs. The
brushes must beor on the commutotor by ot
leost two thirds of their surfoce ond they must
move freely in their cells.
The ormoture should hove o noticeoble oxiol
cleoronce (ploy) not exceeding 0.7 mm. At
o s l i g h t r o t o t i o n o f t h e p i n i o n i n t h e d i r e c t i o n
of the storter motor rototion, the idlor must slip
freely.
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