BELARUS-1523/1523
В
/1523.3
/1523В.3
Construction and Operation
86
The
Transmission Assembly
is
mounted on the cover (54) and consists
of the primary shaft (51) with driving pin-
ions (2, 4, 6, 10), supported in needle
bearings, riding thereon. These gears
provide for shifting in the fifth, sixth, third
and fourth gears, respectively. The first
speed driving pinion is made integral
with shaft (51) and the second speed
driving pinion is rigidly connected to the
shaft. The needle bearings are lubri-
cated under pressure through oil pipe-
line (53) and drillings in the shaft. Two
inertia-type synchronizers (4) and (9)
are sliding on the shaft splines; they
provide for shifting between fifth and
sixth, third and fourth speeds. The pri-
mary shaft is supported in the roller
bearings housed in cover (54) and in
housing.
The driven gears (45, 44, 40 and 39) of
fifth, sixth, third and fourth speeds, re-
spectively, are interference fitted onto
the intermediate shaft (48). Driven gears
(43) and (41) for shifting into first and
second speeds, respectively, are sup-
ported in needle bearings. An inertia-
type synchronizer (42), which helps to
engage the first and second speeds, is
splined to the shaft.
The Reduced Gears and Reverse
Shaft 3
(see Figure below) is supported
in bearings (1) and (12), installed in the
housing (4). The shaft carries a driven
gear (10), which is secured to the shaft
by means of the bushings (9), driving
forward run pinion (8) and reverse run
gear (5), both supported in needle bear-
ings. These gears are connected to the
shaft through a toothed coupling (6).
The bushing (16) splined on the shaft is
stopped with a check ring (7). Should
the tractor is equipped with a creeper, a
gear to be engaged with the creeper
one is mounted instead of the bushing
(9).
Shaft of reduced gears and reverse
1,12 – bearings; 2, 13 – nuts; 3 – shaft; 4 – housing; 5, 8, 10 – gears; 6 – toothed coupling; 7 – check
ring; 9 – bushing; 11 – cover; 14 – oil feed sleeve; 15 – oil pipeline; 16 - bushing.
The Gear Cluster Shaft (33)
(see Fig-
ure “Gearbox (24F+12R)”) is installed in
the housing (1), supported in bearings
(27) and (35). The gears (32) and (34)
Содержание 1523
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