Indication Of The Engaged Gear And Gear Switching Mode Control; Rear Pto Control - Belarus 3522.5 Operator's Manual

In initial condition, when the operator shifts the starter and instrument switch into position
""I – instruments are on", a middle mode of gear shifting is set by default – two upper segments
light up on the indicator 9 (figure 2.13.4).
Pressing the button of gear shifting mode selection 27, it is possible to set easy,
heavy or to come back to a middle mode of a gear shifting, depending on kinds of works
carried out, with a method of circular search. The easy mode can be used when the tractor
operates with minimum load, for example, on transport when moving with empty trailer,
and the heavy mode – during implementation of power-intensive works with maximum
load. If one top (smaller) segment burns on the indicator 9 – "easy" mode is set, if two top
segments burn – "average" mode is set, if all three segments burn– "heavy" mode of a
gear shifting is set.
Also when the operator shifts the starter and instruments switch into position ""I" –
instruments are on"; all gears are disengaged. "0" gear annunciator 28 burns on CECS
front panel (figure 2.13.4), and "0" figure burns on the digital indicator 7.
Then, when gears are shifted in the course of work, the digital indicator 7 displays the
number of the gear, set up by means of the joystick, and the annunciator 6 displays the gear at
which the tractor is currently moving.
Thus, if during tractor movement at first gear, the sixth gear is sequentially set up
with the joystick, then the digital indicator 7 will display the number "6" at once, and the
annunciators of the engaged gear 6 will light up in a successive order (first lower, then the
rest, the last – the top one), in accordance with actuation of respective pressure sensors.
At normal operation mode the indicator 7 displays the number of the selected gear,
and the respective annunciator 6 burns continuously, confirming actuation by pressure.
The digital indicator 7 also displays activation of the gearbox "braking" mode, as
specified in subsection 2.13.1 "Switching of gearbox ranges".

2.13.5.3 Rear PTO control

Rear PTO is controlled with buttons 5 and 30 (figure 2.13.4). Indication of RPTO
operation is performed by annunciators 4, 29, 31 and integrated indicator 15 (figure 2.1.1).
Note – Function of the integrated indicator in the mode of RPTO speed indication is
presented in subsection 2.7.2 "Assignment and operation principle of Integrated Indicator
pointers".
In initial condition, when the operator shifts the starter and instrument switch into position
""I – instruments are on", RPTO disengaged condition is set by default – the indicator 31 (figure
2.13.4) burns, confirming the RPTO disengaged state.
To engage the RPTO it is necessary to press the button 5 (figure 2.13.4). Right af-
ter pressing the button 5 the annunciator 4 will go off informing of the RPTO speeding up.
Then, after a while, when the RPTO reaches a normal operation mode, the annunciator of
the RPTO engaged condition 29 will light up.
To disengage the RPTO it is necessary to push button 30. Herewith the annuncia-
tors 4 and 29 will go out, and the annunciator of the RPTO disengagement 31 will light up,
confirming the RPTO is in disengaged condition.
ATTENTION: RPTO REPEATED ENGAGEMENT IS POSSIBLE ONLY UPON EX-
PIRY OF 30 SEC. AFTER ITS DISENGAGEMENT!
ATTENTION: FOR EMERGENCY DISENGAGEMENT OF THE REAR POWER
TAKE-OFF SHAFT PUSH BUTTON 1 (FIGURE 2.13.4)!
ATTENTION: RPTO CAN BE ENGAGED ONLY WHEN THE BUTTON 1 (FIGURE
2.13.4) IS IN PULLED POSITION!
Note – Additional information on the FPTO operation rules is given in subsection
4.2.7 "PTO use".
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