952.5-0000010 OM
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2.14.4 Gears shifting in transmission with double-lever GB control and reverse gear
unit
The gears are set by three levers: lever to shift ranges of gearbox 6 (figure 2.14.5), lever to
shift gears of GB 3 and control lever of the reverse gear unit 1.
The required ranges, gears and passes of the reverse gear unit (forward motion pass – symbol
"forward", reverse motion pass – symbol "reverse") are set as per the scheme 5, 4 and 2 as it
is shown in Figure 2.14.5.
Gearbox ranges and gears are shifted by separate levers 6 and 3. First set the range (I-st or
II-nd) with lever 6, then engage a required gear with lever 3.
Lever to shift ranges of gearbox does not have a fixed neutral position, therefore the I-st or the
II-nd range of gearbox is always on.
During tractor operation the control lever of the reverse gear unit 1 shall be in switched-on po-
sition (fixed): forward –forward motion pass (“forward”), or reverse –reverse motion pass (“re-
verse”). It’s allowed to hold the control lever of the reverse gear unit in a neutral position (mid-
dle, non-fixed) to make easier the engine start at low temperature.
1 – control lever of the reverse gear unit; 2 – diagram of passes shifting of the reverse gear
unit; 3 – lever to shift gears; 4 – diagram of gears shifting; 5 – diagram of gear box passes shifting ;
6 – lever to shift ranges of the gearbox.
Figure 2.14.5 – Gearbox control with double-lever and reverse gear unit
ATTENTION: GEARBOX OF THE TRACTOR EQUIPPED WITH THE REVERSE
GEAR UNIT DOES NOT HAVE A REVERSE GEAR. YOU CHOOSE THE DIRECTION OF
MOVEMENT BY SHIFTING THE CORRESPONDENT PASS OF THE REVERSE GEAR
UNIT.
ATTENTION:
YOU CAN ENGAGE THE FOURTH GEAR OF GB ONLY
IF THE II
nd
RANGE OF GB AT FORWARD MOTION IS SET!
ATTENTION: SHIFT RANGES AND GEARS OF THE GEARBOX ONLY WITH THE
TRACTOR STOPPED AND THE CLUTCH PEDAL FULLY DEPRESSED. PERFORMING
TRANSPORT OPERATION IT IS PERMITTED TO SHIFT GEARS IN MOTION FROM THE
SECOND TO THE THIRD, FROM THE THIRD TO THE SECOND WITHIN THE I
st
AND THE
II
nd
RANGE, AND ALSO FROM THE SECOND TO THE FOURTH, FROM THE FOURTH TO
THE SECOND, FROM THE THIRD TO THE FOURTH, FROM THE FOURTH TO THE THIRD
WITHIN THE II
nd
RANGE. THE SHIFTING SHALL BE CARRIED OUT AS THE TRACTOR
COASTS AND THE CLUTCH PEDAL IS FULLY DEPRESSED! ENGAGEMENT AND DISEN-
GAGEMENT OF THE FIRST GEAR, DOWNSHIFTING TO THE FIRST GEAR, ENGAGE-
MENT AND DISENGAGEMENT OF THE REVERSE GEAR SHALL BE CARRIED OUT ONLY
WITH THE TRACTOR FULLY STOPPED AND WITH THE CLUTCH PEDAL FULLY DE-
PRESSED.
ATTENTION: THE PASSES SWITCHING OF THE REVERSE GEAR UNIT FROM THE
FORWARD TO THE REVERSE GEAR AND FROM THE REVERSE TO THE FORWARD
GEAR IS CARRIED OUT ON THE FIRST, THE SECOND AND THE THIRD GEAR OF THE I
st
OR THE II
nd
RANGE OF THE GB WITH THE TRACTOR STOPPED AND THE CLUTCH
