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1523.5-0000010 OM
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 speed of the engine
will result in fuel overconsumption. The correct selection of gear for each specific condition
of operation ensures fuel economy and reduces engine wear;
- avoid prolonged engine operation without load in a mode of max. or min. speed 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.
3.4.4 Technical maintenance during tractor run-in
After the first tractor operation hour check tightening of retaining nuts of rear wheels to the
hub, retaining nuts of front wheels to FDA gear group flanges and retaining nuts of the
front wheel disks to the rim brackets. Then inspect the wheel tightening every eight hours
during the run-in.
During the run-in process regularly carry out operations on shift-time technical mainte-
nance according to the instructions specified in section 5 "Maintenance" of this manual.
3.4.5 Technical maintenance after tractor run-in
After the tractor run-in, do the following:
- carry out shift-time maintenance operations;
- inspect and wash the tractor, clean the cab;
- listen to the operation of all tractor constituents;
- check tightening of retaining nuts of rear wheels to the hub, retaining nuts of front wheels
to FDA gear group flanges and retaining nuts of the front wheel disks to the rim brackets;
- tighten two lock nuts M27x1,5 (with left and right thread) of the steering link tube with a
torque of 100 to 140 N·m and two crown nuts M20x1,5 of the steering link ball pins. To
tighten the crown nuts, remove the cotter pin first, tighten each crown nut with a torque of
100 to 140 N·m, then turn each crown nut until the nearest notch on the nut coincides with
a hole in the ball pin and then fasten with a cotter pin.
- check and if necessary, tighten outer threaded links;
- drain condensate from the pneumatic system receivers;
- drain sediment from fuel tanks and from the fuel coarse and fine filters;
- check the state of accumulator batteries, clean terminal connections and ventilation
holes;
- check brake fluid level in the main cylinder tanks of hydrostatic clutch drives and in the
tanks of service brakes, if necessary add it;
- check and if required, adjust free movement of the clutch pedal, of the service and park-
ing brakes control and the brake valve drive of pneumatic system;
- drain oil from the transmission. Then clean the rotor of the gearbox centrifugal oil filter
and the gearbox net filter. Fill the transmission with new oil;
- check and if necessary, adjust drive belts tension;
- check and if necessary, tighten engine outer threaded connections and engine mounting;
- replace oil in the housings of wheel-hub drives and FDA housing;
- replace oil in the FPTO reduction unit housing, if mounted;
- replace oil in the engine crankcase;
- replace the engine oil filter;
- check and if required tighten the retaining bolts of cylinder heads;
- check and if required adjust clearance between the valves and rockers arms;
- replace oil in the housings of the wheel gear groups and in the FDA housing;
- check lubrication in all assembly units according to clause 3 of table 5.4. In the places
where lubrication is required - lubricate or replace the lubricant;
- check and if necessary, restore hermiticity of the air cleaner and inlet line;
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Troubleshooting
