Dnepr MT10-36 - Rear Wheel Brake

Rear Wheel Brake
Fig. 28 illustrat ·e s the design of the re ar wheel brake.
Brake shoes 8 bear with the spherical nests against the he ads of
tap , pets 2 an d with the pressure areas, on -ca m 5. The cam has a slot
accomodating equalizer 6. When the cam with the -equalizer a-re tur -
ned the shoes are not pressed to the .brake drum.
Fig. 28. Rear wheel brake:
I- adju s ting taper; 2- tapp et ; 3- lever axle; 4- lever; 5 -cam; 6- equ alizer ;
7
-lev er screw; 8- brake shoe ; 9- brake shoe sp r ing
As the friction linings wear out the gap be tween the brake shoes
and the wheel drum increases. To mainta in this gap within the re-
qui• red limits the brake is provided with a wear compensato r which
is made as taper 1. The taper is screwed in, as need arises, from the
exter . nal side and mov es ap art tappehs 2 which bring the brake shoes
closer to
the drum a nd cam with equalizer. Lon gitud in al gwoves on
the taper surface are provided for fixing the tap er ,position. The tap -
pets acted up on by springs 9 which tighten the 1 brake shoes enter
these grooves.
The necessity in brake adjustment is judged by the free travel of
rear wheel brake lever end. The free travel is considered normal if
it
does not exeed 35 mm. If it exceeds 35 mm, tha n using a wr ench
with 8 mm span turn the protruding square of Lhe adjustin g ta . per
clockwie {as it is shown in Fig. 30) through one or several fixed in -
te
rvals which are per se ptible by the ·effort ·required for its turning.
In this case the length of the re ar draw rod should be a djusted so
as des cribe d below.
The r
ear wheel brak e draw rod leTIIgth is adjus ,te d during its in -
stalling on a motorcycle as well as during repair operations. The
front dra w rod is not to be adjusted .
The a dju st me nt is made with the whe el removed and the rear
brake pedal , pressed from below to the footstep in the following order :
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