Start Of Tractor Movement, Gb Shifting - Belarus 80.1 Operation Manual

4.2.3 Start of tractor movement, GB shifting

WARM UP THE ENGINE TO REACH STABLE OPERATION AT CRANKSHAFT
RPM OF 800-1000 WITHIN THE TIME FROM 2 TO 3 MINUTES, AND THEN LET IT RUN
AT HIGHER RPM BY GRADUALLY INCREASING THE SPEED TO 1600 RPM, UNTIL
THE COOLANT TEMPERATURE REACHES 50ºC!
IT IS FORBIDDEN TO OPERATE THE TRACTOR IF WITH THE ENGINE RUN-
NING, THE EMERGENCY ENGINE OIL PRESSURE LAMP IS GLOWING. STOP THE
ENGINE IMMEDIATELY.
Before starting the movement, define a necessary speed of tractor movement. The
diagram of speeds for tractor BELARUS-80.1/82.1/820 on tyres of basic configuration is
given in the instruction plate on the right window in the cab, as well as in section
2.13 "Shifting of gears".
To put the tractor in motion, do the following:
- reduce engine speed;
- depress the clutch pedal;
- set a required GB range using the range and gear shifting lever according to the
range shifting diagrams in section 2.13 "Gear shifting", then set a desired speed by moving
the range and gear shifting lever into one of positions according to the gear shifting dia-
gram in section "Gear shifting";
- if necessary, switch the stage of step-down reduction unit (for tractors with reverse
reduction unit, if necessary, switch the reverse reduction unit to the necessary tractor trav-
el mode);
- disengage the parking brake, gradually release the clutch pedal while simultane-
ously increasing fuel feed. The tractor will start moving.
IT IS PROHIBITED TO START TRACTOR MOVEMENT WITH BIG TRACTION LOAD.
TRACTOR MOVEMENT WITH AN OPEN DOOR IS PROHIBITED.
IT IS PROHIBITED TO USE THE "R" REVERSE GEAR IN TRACTION MODE.
ATTENTION: WHEN STARTING TO MOVE, MAKE SURE THE PARKING BRAKE IS
DISENGAGED!
ATTENTION: SWITCH THE GB GEARS AND RANGES ONLY WITH THE TRAC-
TOR STOPPED AND THE COUPLING CLUTCH DISENGAGED! ENGAGE AND DISEN-
GAGE THE FIRST GEAR, SHIFT TO THE FIRST GEAR FROM A HIGHER ONE, EN-
GAGE AND DISENGAGE REVERSE MODE ONLY AFTER THE TRACTOR IS FULLY
STOPPED AND WITH THE COUPLING CLUTCH DEPRESSED!
ATTENTION: THE RANGE REDUCTION GEAR OF THE GB IS NOT EQUIPPED
WITH A FIXED NEUTRAL POSITION OF THE DRIVING GEAR OF THE REDUCTION
UNIT STAGE I, THEREFORE, THE RANGE REDUCTION UNIT SHALL ALWAYS BE
ENGAGED EITHER TO THE I
ATTENTION: THE STEP-DOWN REDUCTION GEAR IS NOT EQUIPPED WITH A
FIXED NEUTRAL POSITION, THEREFORE, THE STEP-DOWN REDUCTION UNIT
SHALL ALWAYS BE ENGAGED EITHER TO THE HIGH OR TO THE LOW STAGE.
SETTING THE LEVER TO NEUTRAL (NON-FIXED POSITION) IS ALLOWED ONLY
WHEN STARTING THE ENGINE IN A COLD SEASON.
st nd
OR TO THE II REDUCTION UNIT STAGE.
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