Sachs SA 280A User Manual

TAKING DOWN THE ENGINE
Remove a ll connections fr om engi ne 10 f rame or unit (cables. electric connect ions etc.).
Un scr ew exhaust muffler, i. e. manifold a nd brocket.
Remove t he en gine and clean t horoughly before taki ng down.
When giving the engine a general overhaul, components should be removed in the
sequ
ence indicated.
Fig. 1
Fig. 2
6
Exhoust muffler, corburettor on d
el ec tric s tart er
Fi g. 1
Sc r ew dow n engine on Ihe as-
sembly jig with 2 he)(090n head
bolts M 10 )( 40, as shown in Ihe
adjoining ill ustration.
Re move intake silencer (I).
Un s cr ew adapte r flange cnd
lake off cover plate (21 or un-
screw intake si l encer (Fig. 302,
p.
53) with c over pl ale.
Pull o ff impul se pipe ( 4) .
Remove corbur ellor (3).
Rem ove insulating sleeves and
insula ting f lange.
If th ere is on intake stack be-
t we en cor burettor and cylinder,
r
emove it on ly if necessary.
Unscrew electric
starter.
Re coil s tart e r, st ar ter hub
and fa n
Fig. 2
Detach recoil sl arter .
Unlod;
nut in Ihe sl or l er hub (1).
Hold starler hub with retaining
l ever (2, r epai r too l no. 6), un-
screw the nut and r emove sta rter
h
ub with spring ring and washer.
Nol e:
In
the case of the Fairba n ks recoil starte r rel ease nu t, hold starter h ub with strap
span n er and unscrew nut.
I~ the case of the. recoil starter with friction iows rele<lse nut, hold sl orte r hub with
pin spanner (r epair tool no. 7) ond unscr ew il.
T oke off storle r hub with spring ring a nd washer.
Remove th~ cylindrical pin and .the beor i n!;! ro ll er fr om the magneto flywheel (Fair-
banks r eCOil starter) resp. 2 bearing rollers (recoil star t er with friction jaws).
Toke
off cove r disc (3).
Unsc rew fan and remove gasket.
Cover plat e and fan hou l ing
Fig. J
Un screw fixin~ clip (3) for igni-
tion lead (n ot In the case of 75 W
eq uipment) a nd cover (1).
Detach le ads a t termina ls 1, 2
a nd 3 of the term in al box {5} and
rem ove fan housing (4 ).
Note :
Rem
ove cov er fl anges on fan
housing f or electric sta rt er con-
nectian, if fitted.
T
ak e core of dowel tu bes.
Nole :
Remove
shor t-circuiting button
on ly if necessary.
Remove rub
be r cop (2) and
sho rt-circuiting builon.
D
eta ch short-circuiting lead fr om
insulator.
Remounl pa rts in reverse orde r.
Magnelo flywh ee l
Fig. 4
Fi t pro tective cop (reroir tool no.
4) to thr eaded end 0 crankshaft.
Fit retaining lever (1, repair tool
no.
6) 10 m agneto flywheel and
pull off the fl yw h ee l by m eans of
the extr acto r (2, repai r too l no.5).
Fig. ~
7

Sachs SA 280A Specifications

General

Brand	Sachs
Model	SA 280A
Category	Engine
Language	English