Safety Measures During Maintenance And Repair Operations; General Safety Requirements; Safety Precautions For Exclusion Of The Hazardous Situations, Related To The Ac- Cumulator Battery And The Fuel Tank - Belarus 3522.5 Operator's Manual

6.5 Safety measures during maintenance and repair operations

6.5.1 General safety requirements

It is forbidden to dismount the hood side panels and/or open the hood mask of the
tractor with the engine running.
Maintenance (repair) operations shall be carried out only if the engine is not running
and FPTO and RPTO are disengaged. Hinged implements shall be grounded, the tractor
shall be stopped with the parking break.
Adhere to the safety requirements during application of the lift-and-carry means.
During inspection of units under control and adjustment use the portable lamp with
voltage of 36V. The lamp shall be protected by wire guard.
Tools and accessories for MS shall be properly operating, answer the purpose and
ensure safe operation.
In order to avoid injury be careful draining (refilling) the coolant from the engine
cooling system, the hot oil from the engine, hydraulic systems of LL and HSC, transmis-
sion bodies, and FPTO and FDA reducing gears. Avoid contact with hot surfaces of the
abovementioned units.
Mounting and dismounting of the engine shall be carried out by means of a rope,
fastened to eye-bolts on the engine.
Do not make alterations in the tractor or its separate parts design without sanction
of the manufacturing works. Otherwise the tractor after-sales service warranty is no longer
valid.
6.5.2 Safety precautions for exclusion of hazardous situations, related to an accu-
mulator battery and a fuel tank
During maintenance of the accumulator battery perform the following:
- avoid skin contact with electrolyte;
- clean the batteries with wiping material moistened with aqua ammonia solution
(ammonium hydroxide);
- during examination of electrolyte level use distilled water only;
- do not check the battery charge condition by means of the terminal short circuit;
- do not connect the accumulator battery with reversed polarity.
In order to avoid damaging of the electronic units of the electrical facilities and elec-
trical control systems adhere to the following safety precaution:
- do not connect the AB outputs with the engine running. It will cause the peak volt-
age in charging circuit and will result in inevitable failure of the diodes and transistors;
- do not disconnect the electric wires when the engine is running and electric
switches are "on";
- do not cause short circuit by incorrect wires connection. Short circuit or incorrect
polarity will result in failure of the diodes and transistors;
- do not connect the AB in the electrical facilities systems until the outputs/inputs
polarity and voltage are checked;
- do not check the electric current by spark test as it can result in immediate break-
down of the transistors;
Repair operations associated 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 batteries from being close to the open flame sources.
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