Repairing The Main Drive; Main Drive Dismantling And Assembling; Propeller Shaft And Universal Joint Removal And Installation - Dnepr MT9 Repair Manual

VI. REPAIR ING THE MAIN DRIVE
I.
Df SNi.\l\i TLING AND AS SEM BLING THE ,..,lA IN DRIVE
Rem o val and ! 11stai!ation of ihe Prope ll er Shaft an d
Universal J o int
T!ir: ;•repe lle r :;haft with a :-;ca li ng ruh hcr ri ng i:' Cil!'iiy
r clllJ';-
;:'·; ;r•'il1 th e
pr,>pc: Jcr
shaft
yoke.
On
rr>ilW\'inr:;
the pr<) pel!er s h;1ft, lak e
do\': 11
the !iJ:ii·.crsa l
joint
in
~be
felk\ring n r u r:
u~scrcw
the propelle
r
shaf t cas in g
ha\'ing
a left-hand
thr e;~d ;
:·11c-ot!er t he key
boll nut,
screw
it
off and , using a
soft
111:?1:11
1:1<1:•rirci,
dri \'e
out the
liey
!Jo lt ;
89,25-0,23
A
-A
Fi •:.
:'1'.
fitt i n ~
1hc
quadrant of
lhc
,;l~•rlir;p; !llcc ·· ~nism
slinf!:
I
' 1 ~
'l1t
~ymmctry
J1 1JIJ:' :
I i -
sJ,., t
c:1 ;.;:t:lft
rc-
"r•\'('
ilw I' J·iyersal joid
frnlll
the clriY ing
~?;ea r
sh<1nk (
D
rubber
r·:· hroi1ZC lnmmcr ·nny he
used for lapping).
,\f :e r cli <: n,an tli:w.
\Uls h
ai!Cl in:·pect
t he
prop ell<·r sh af t
:rnd
lln i-
, .. -rs;· l
j~.j:JL
If ":' '"S'';1ry, cli s<o:-."C111hlc th e uniYcr:·a i j oint, i ns 1C"t i t,
·r:1kc tl•c necr <;.;c,ry lil('<lSUrrmenb and rep la ce t!lC' worn p2r~s (re-
fer to
th e
Sr
[i
·n desc ri bi ng
i he
repairing
prcceclu re ) .
Re-instal l
\ill''
u n in•-o.~J j
· i1 ·1 <llld
propeller :; haft in rC\' Li'SC ordl' r.
\\'hP n ;'"'<'ll'hl inr:,
t<~kc
C8H'
lo e ns ure
llJ<>t lhe
double -row
racl i8!.
t''rll ~, t
h"''f i l'g 'f
il'r· dri\
in g gea r is reliably ti ghtened
by
ille soli n-
cd
fnrl :
'i i ll:' l'i:i·.·rrsa
l join t
(\'.·ith
th e aid
nf
key bolt) .
The
fT c;· r
,,ivn k
is provi ded with
a
slot inc line
d to t he ;.;car
<1\i~.
\\ 'lwn
in:- t~ili1'g
lh e sp lined fork
on
U1P
gea r shank, sec ! hal
thP
tlO'-'S '' ill1 ;111
nnpp ing
(on
the f11 rk)
is
on
that si de of
the s lot
edge
v.·hH1
ic; rl "-,c r h 1he
shank e
ncl . [n <:ert the kev
bolt
]rom Hw boss
·i (
1
e, \'.'i1h the
:.knw
i nw ard s
th e
uni\·ersal joint. "
In :
.~c;c
1
he
"r t
d
<~djusling
sh ims, placed betw een
t.he hear
ing
:md 1':·'
,ll'i\'c;·sz. 1
i " int fork, is se lected cor rect ly, the
her~d
rJf
the
J. - c\· ho l:,
:1f'cr
t i ~hte n in g
th e nu l , must be f!11 sh w ith the
fo rk
boss.
82