Belarus 3522.5, Operator'S Manual

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3522.5-0000010
РЭ
111
The gears 20 (figure 3.4.3) and 17 provide creeper operation in mesh with the gear 26 and
the toothed rim of the creeper shaft 24. The creeper shaft 24 is mounted on the bearings
25 and 22, located in bores of the cage 3.
The gear 17 runs on a needle bearing, mounted on the sleeve 21. The sleeve 21 is
mounted on splines of the layshaft 19.
The creeper is engaged by moving the toothed clutch 1 (figure 3.4.5) forward along
tractor movement, disengaged by moving the toothed clutch in an opposite direction.
When the creeper is engaged, the inner splines of the toothed clutch 1 are meshed
with the outer splines of the gear 17 (figure 3.4.3). When the creeper is disengaged, the
inner splines of the toothed clutch 1 (figure 3.4.5) are in mesh with the outer splines of the
sleeve 21 (figure 3.4.3).
The toothed clutch 1 (figure 3.4.5) is shifted into this or that position by means of the
fork 2 and the lever motion, mounted on the cover 1 (figure 3.4.4).
The fork 2 (figure 3.4.5) is mounted on a carrier 5. The carrier 5, mounted in a body
11 with a possibility of axial displacement, has three fixed positions. Movement of the car-
rier 5 is interlocked with movement of the carrier engaging the ranges III and IV by means
of a ball 9 and a pusher 10. This locking mechanism precludes a possibility to engage the
ranges II and IV of the gearbox with the creeper actuated, and vice versa, creeper actua-
tion with these ranges engaged.
The needle bearings are forcedly lubricated via channels, made in the layshaft 19
(figure 3.4.3) through the cover 1. Oil is delivered to the cover via the pipeline 4 (figure
3.4.4).
PTO drive shaft 11 (figure 3.4.3) serves to transfer torque from the engine to im-
plements. The PTO drive shaft 11 rests against the sleeve 5 from the one side and against
the bearing 13 from the other side.
Ranges of the gearbox and of the creeper are shifted with levers. The levers to shift
ranges of the gearbox and of the creeper as well as the joystick are located in cab to the right
of a driver's seat.
Diagram of power flows when engaging various ranges is presented in figure 3.4.6.
1 – toothed clutch; 2 – fork; 3 – locking bolt; 4 – lockwire; 5 – carrier; 6 – spring; 7 –
bolt; 8 – washer; 9 – ball; 10 – pusher; 11 – body; 12 – main gear drive shaft.
Figure 3.4.5 – Control of a creeper and locking mechanism of ranges III and IV
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