Rear Axle Differential Lock Control - Belarus 1822.3 Operator's Manual

ATTENTION: USE ONLY POSITIVE ENGAGEMENT OF FDA WHEN OPERATING
THE TRACTOR UNDER BAD TYRE GRIPPING CONDITONS WHEN REAR WHEELS
SKID INCLUDING TRACTOR TURNING, TO INSURE SMOOTH ENGAGEMENT OF
FDA, FOR THIS DO THE FOLLOWING:
- STOP THE TRACTOR, HAVING DEPRESSED THE CLUTCH PEDAL;
- ENGAGE THE FDA IN THE MODE "FDA DRIVE ENGAGED POSITIVELY";
- SMOOTHLY RELEASE THE CLUTCH PEDAL.
ATTENTION: AUTOMATIC ENGAGEMENT OF FDA DRIVE, IRRESPECTIVE OF
THE SET MODE (INCLUDING THE MODE "FDA DISENGAGED"), TAKES PLACE WHEN
PRESSING THE INTERCONNECTED BRAKE PEDALS!
ATTENTION: WHEN OPERATING ON ROADS WITH HARD SURFACE IT IS
NECESSARY TO DISENGAGE THE FDA DRIVE IN ORDER TO PREVENT INCREASED
WEAR OF FRONT WHEEL TYRES!
ATTENTION: VIOLATION OF RULES FOR USING FDA DRIVE OPERATION
MODES MAY RESULT IN BREAKDOWN OF FDA PARTS AND OTHER PARTS OF
TRANSMISSION!
IT IS FORBIDDEN TO OPERATE THE TRACTOR WITH FDA DRIVE ENGAGED
WHEN THE SPEED OF MOVEMENT IS ABOVE 13 KM/H!

2.14.5 Rear axle differential lock control

The rear axle differential lock (DL) is controlled with a switch 5 (figure 2.14.1). Indi-
cation of rear axle DL operation is performed by an annunciator 4.
The switch 5 has three positions:
o "DL disengaged: - middle fixed;
o "DL automatic control" – upper fixed;
o "DL engaged positively" – lower non-fixed.
To avoid increased wear of the rear wheel tyres and the rear axle differential use
the mode "DL engaged" when traveling on roads with hard surface with the travel speed
above 13 km/h.
The mode "DL automatic control" with guide wheel position corresponding to linear
movement, engages the rear axle DL and the annunciator 4 go off.
The real axle DL is disengaged automatically when the guide wheels turn to the an-
gle above 13° or when any or both brake pedals are depressed. Herewith the annunciator
4 goes out.
The mode "DL automatic control" is disengaged by setting the switch 5 into position
"DL disengaged". The annunciator 4 will go out.
Use the mode "DL automatic control" when carrying out operations with significant
relative skidding of rear wheels.
If there is a necessity of rear axle DL positive engagement for short time, irrespec-
tive of front wheel turning angle, it is required to push the switch 5 and hold it depressed in
position "DL engaged positively". The rear axle DL remains engaged during holding the
switch 5 depressed. Simultaneously the annunciator 4 goes off. On releasing the switch 5
the RADL returns to its initial (disengaged) state and the annunciator 4 goes out.
IT IS FORBIDDEN TO OPERATE THE TRACTOR WITH RADL ENGAGED WHEN
THE SPEED OF MOVEMENT IS ABOVE 13 KM/H!
IT IS FORBIDDEN TO OPERATE THE TRACTOR WHEN TRAVELLING ON
ROADS WITH HARD SURFACE WITH RADL CONSTANTLY ENGAGED!
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2022.3-0000010 OM