Belarus 80.1 Series, Operation Manual

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80-0000010B OM
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Start the engine. Let the engine run at idle speed for five minutes with gradual in-
crease of the rotation speed up to 1600 rpm then run in under load for 30 tractor operation
hours.
While carrying out the 30-hour run-in follow the below instructions:
- constantly inspect gauge indications, operation of lubrication system, cooling sys-
tem and power supply system. Control levels of oil and fluids in refill capacities;
- check outer fastening links for tightness and tighten them;
- do not overload the engine, avoid engine smoking and speed drop. The features of
overload are sharp decrease of speed, smoking and absence of engine reaction to in-
crease of fuel feed. Operation at high gear under load results in excessive wear of friction
parts of the engine;
- tractor operation at lower gear under small load and with increased rpm of the engine
will result in fuel overconsumption. Right selection of the gear for each specific condition of op-
eration ensures fuel economy and reduces engine wear;
- avoid prolonged engine operation without load in a mode of max. or min. rpm of
the engine;
- for correct break-in of the clutch friction parts during the run-in process, engage
the clutch more often and more smoothly.
4.4.4 Technical maintenance during tractor run-in
After the first operation hour check tightening of nuts attaching rear wheels to the
hub and of nuts attaching front wheels to gear group flanges of FDA or front axle hubs. If
FDA 822-2300020-02/04 and wheels with variable plate offset are mounted, check the
tightening of nuts attaching front wheel plates to rim brackets. Then inspect the tightening
of wheel fastening every eight hours during the run-in.
In the run-in process, regularly carry out operations of shift-time technical mainte-
nance according to the instructions, set forth in section 6 “Technical maintenance” of this
Manual.
4.4.5 Technical maintenance after tractor run-in
After the tractor run-in do the following:
- perform shift-time maintenance operations;
- inspect and wash the tractor, clean the cab interior;
- listen to the operation of all tractor constituents;
- check tightening of threaded links in accordance with clause 4.4.4 “Technical
maintenance during tractor run-in”;
- tighten two lock nuts M27x1,5 (with left and right thread) of the steering link tube
with a torque of 100 to 140 Nꞏm and two castellated nuts M20x1,5 of the steering link ball
pins. To tighten the castellated nuts, remove the split pin first, tighten each castellated nut
with a torque of 100 to 140 Nꞏm, then turn each castellated nut tighter until the nearest
notch on the nut coincides with a hole in the ball pin and then fasten with a split pin.
- check and if necessary tighten outer threaded links;
- drain condensate from receiver of the pneumatic system;
- drain sediment from fuel tanks and the engine coarse and fine filters;
- check the state of accumulator batteries, clean the terminal connections and venti-
lation holes;
- check and if required adjust free movement of the clutch pedal, the service and
parking brakes’ control, brake valve drive of the pneumatic system;
- replace oil in the transmission;
- on tractors with FDA 822-2300020-02/04 change oil in gear group bodies, in FDA
body and intermediate support of FDA cardan drive;