Belarus 80.1 Operation Manual page 341

In order to avoid damaging of the electronic units of the electrical facilities and elec-
trical control systems, observe the following safety precautions:
- do not disconnect AB outputs with the engine running. It will cause peak voltage in
charging circuit and will result in inevitable failure of the diodes and transistors;
- do not disconnect electric wires when the engine is running and electric switches
are on;
- do not cause short circuit by incorrect wire connection. Short circuit or incorrect
polarity will result in failure of the diodes and transistors;
- do not connect the AB in the electrical equipment system until the outputs/inputs
polarity and voltage are checked;
- do not check the electric current by spark test as it will result in immediate break-
down of transistors.
Repair operations connected with application of electric welding for the tractor shall
be carried out while the AB switch is off.
To avoid ignition or explosion hazard, prevent the fuel tank, engine fuel system and
accumulator battery from being close to open flame sources.
6.6.3 Safety rules for use of levelling jacks and indication of places for their installa-
tion
Use leveling jacks to lift tractor, and after lifting insert backing blocks and limit stops
under the tubes of wheel gear group, under the axle beam of front wheels and basic parts
of tractor framework.
Places for leveling jack installation on the tractor are marked by a sign shown in fig-
ure 6.6.1.
Figure 6.6.1 – Sign of a place for leveling jack installation
To lift tractor rear elements, set leveling jacks (or a single jack) under the rear semi-
axle tubes as illustrated in figure 6.6.2.
Figure 6.6.2 – Scheme of leveling jack installation for lifting tractor rear elements
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80-0000010B OM