Dnepr MT9 - Main Drive Dismantling and Assembling; Propeller Shaft and Universal Joint Removal and Installation; Repairing the Main Drive

VI. REPAIR ING THE MAIN DRIVE
I. Df SNi.\l\iTLING AND AS SEM BLING THE ,..,lA IN DRIVE
Rem o val and ! 11stai!ation of ihe Prope ll er Shaft an d
Universal Joi nt
T!ir: ;•repel le r :;haft with a :-;ca li ng ruhhcr ri ng i:' Cil!'iiy r clllJ';-
;:'·; ;r•'il1 th e pr,>pc: Jcr sh aft yoke.
On rr>ilW\'inr:; the pr<) pel!er s h;1ft, lak e do\': 11 the !iJ:ii·.crsal joint
in ~be felk\ring nru r:
u~scrcw the propeller shaf t cas in g ha\'ing a left-hand thr e;~d ;
:·11c-ot!er the key boll nut, screw it o ff 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 - s J,., t c:1 ;.;:t:lft
rc- "r•\'(' ilw I' J·iy er sal joid frnlll the clriYi ng ~?;ea r sh <1nk ( D rubber
r·:· hroi1ZC lnmmcr · nny he used for lapping).
, \f :er cli <: n,antli:w. \U ls h ai!Cl in: ·pect the prop ell<·r shaft :rnd lln i-
, .. -r s;· l j~.j:JL If ":' '"S''; 1ry, cli s<o:-."C111hlc the uniYcr:·a i jo int, i ns 1C"t it,
·r:1kc tl•c ne cr <;.;c,ry lil('<lSUrrmenb and replace t!lC' worn p2r~s (re-
fer to the Sr [i ·n describi ng ihe repairing prcceclure) . Re - instal l
\ill'' u n in•-o.~J j · i1 ·1 <llld propeller :; haft in rC\' Li'SC ordl' r.
\\'hPn ;'"'<'ll'hl inr:, t<~kc C8H' lo ens ur e llJ<>t lhe d ouble - row racl i8 !.
t''rll ~, t h"''f i l'g 'f il'r· dri\ in g gea r is reliably ti ghtene d by ille solin-
cd fn rl : 'i ill:' l 'i :i·.·rrsal join t (\'.·i th the aid nf key bolt) .
The
fT c;· r ,,ivn k is provi ded with a sl ot i nc lined to the ;.;car
<1\i~.
\\ 'lwn in: - t~ili1'g lh e splined fork on U1P gear shank, sec !hal thP
tlO'-'S '' ill1 ;111 nnppi ng (on the f 11 rk) is on that si de of the s lot edge
v.·hH1 i c; rl "-,c r h 1he s hank e ncl . [n <:ert the kev bolt ]r om Hw boss
·i(
1
e, \'.'i1h the :.knw i nw ards the uni\·ersal joint. "
In : .~c;c
1
he "r t d <~djusling sh ims, placed between t. he he ar i ng
:md 1':·' ,ll'i\'c;·sz.
1
i" int f or k, is sele cte d correctl y, the her~d rJf the
J.- c \· ho l:, :1f'cr t i ~hte n in g the nul, must be f!11 sh w i th the fork boss.
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