Dnepr MT9 - Mounting and Dismantling Operations

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a sudden ope nin g of the throttles must cause the motorcycle to ra-
pidly increa se its sp eed w ithout any noticeable clutch slip. Th e gear
box, propeller shaft and main drive shou ld be checked for good con-
clition by
testing the operation of these mec hani sms with the motor-
cycle
at r est and on the go.
The
backla sh in the main drive gearing must be wit hin 0.1 and
0.3 mm, the permissible run-out of th e propeller s haft not exceed-
ing 1.5 mm.
The wheels are checked for condition by succ essive ly in specting
each of them (by r ais in g, r otating th e whee l and rocking it from side
to side) . The whee ls must rotat e freely, wit h out play, snaps and
se izur es. The permissible (lateral and radial) run- out of the rim
s hould be 1. 5 mm. The spokes are checked for uni form tens ion i ng
by li stening to the sou. nd produc ed when tapping the spokes.
Th e front fo rk , hy draulic shock absorb ers, s teering contro ls and
br akes are checked for condition by inspecting them w ith th e motor-
cycle at rest or by t est ing their operation on the go. The fork must
be free to rotate in the steerin g column, without pla ys and sto pping
in ce
rt ain positions .
When inspecting and checking lhe motorc ycle units, m ake sure
that the <lnti ru st co<1ting and p<linting of the component p ar ts are in
good co nditi on. The cau ses of faults and troubl es hootin g procedure s
are gi ve n in Table 2.
On completing the inspection and checking, draw up a technical
co ndition r eport, on th e basis of which th e motorc ycle _ ma y be sub-
jected to adjust ment, partial or total di sm an tling and r eq uir ed re-
pairs.
III. MOUNTING AND DISMANTLING OPERATIONS
If, as· lhe result of checking for technical condition, it is found
necessary to pe rform a partial or total dis mantling of some of th e
units, asse mblies or the entire motorc yc le for th e purpose of repair-
ing or re placing the component parts, the dism a ntling should be
carried out to the ex tent not greater than required.
Subj e ct ed to partial dism a ntling ma y be the assemblies that are
removed or not removed from the motorcycle.
Prio1 to dismant l ing, clean and wash the e ntire assembly to
remove oil, dirt and du st that may foul the friction parts of the
jointed membe rs during dismantling . After disassembling, clean off
dirt , carbon deposits and remnants of bak elite lacquer from th e
co
mponent part s, wash and examine them for good condi.tion, mak e
appropriate mea s urements to determine the degree of wear. The
maintenance shop or service station must have at its disposal a com-
plete set of tools necessar y for dismantling or assembling th e motor -
cycle units. In case the unil s or assemblies have to be dismantled
without re moving them from the motorcycle or when their removal
is requ-ired,
it is advisable to detach the sidecar to ensure a better
access and thus facilitate the re pair operations.
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