URAL Motorcycles Deco Classic 1998, Руководство пользователя

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Chapter 6 (Power Transmission)
Gearbox with Reverse Gear
The principal parts of the gearbox are the split box with covers, clutch
shaft and main shaft with gears and shift sleeves, the gear shift
mechanism, the kick starter and the reverse gear engagement
mechanism.
Shafts. The clutch shaft is installed in the ball and roller bearings. The
shaft is made integral with the gear rims of the I, II and III gears. The
gear of the IV gear is set on a segment key.
The main shaft is set on two ball bearings. The pinions of the I, II, III
and IV gears rotate freely over the splines outer surface. Two sleeves
are set on the splines of the main shaft, the gears are connected with
the shaft by means of the gear shift sleeve. Involute teeth are
threaded on the outer surface of the engagement sleeve of the I and II
gears. The gears are lubricated through labyrinth cavities in the
casing, axial and radial bores in the shaft.
The gear of the kick starter has an additional small rim.
The intermediate gear is installed on the neck of the bracket which
travels in the longitudinal direction of the shaft.
Bronze bushings are pressed into the gear holes of the kick starter,
intermediate and I gear of the main shaft.
The kick starter (Fig. 15) consists of shaft (Fig. 15, #4) with pawl (Fig.
15, #7), the kick lever with the pedal, return spring (Fig. 15, #1) and
kick starter gear (Fig. 15, #3). The shaft is supported by the bushings
provided in the gearbox casing.
The gear shift mechanism is shown in Fig. 16. The gear shifting is
performed in a definite succession. The lower gears are engaged by
depression of the pedal front arm, while the higher gears, by
depression of the pedal rear arm.
The reverse gear engagement mechanism consists of quadrant
(Fig. 16, #10) with a shaft and reverse gear engagement lever (Fig.
16, #9) secured on it, and intermediate gear set on the bracket, having
longitudinal travel along the shaft from the reverse gear engagement
quadrant.
Figure 14 Development of Shafts (with reverse run
engaged)