Safety Measures While Maintenance Service And Repair Operations; General Safety Requirements; Safety Precautions For Exclusion Of Hazardous Situations Related To Accumula- Tor Batteries And A Fuel Tank; Guidelines For Safe Use Of Leveling Jacks And Statement Of Proper Places For Their Installation - Belarus 922.6 Operator's Manual

5.6 Safety measures while maintenance service and repair operations

5.6.1 General safety requirements

It is forbidden to dismount the hood side panels and/or open the tractor hood or the
mask of the hood with the engine running.
Maintenance (repair) operations shall be carried out only if the engine is not running
and PTO is disengaged. Hinged implements shall be in a lower position, the tractor shall be
stopped with the parking brake.
Observe safety requirements while using lift-and-carry means of transport.
During inspection of units under control and adjustment, use the portable lamp with
voltage of not more than 36V. The lamp shall be protected by wire guard.
Tools and accessories for MS shall be in a proper operating condition, correspond to
their assignment and ensure safe operation.
In order to avoid injury and burns, be careful while draining (refilling) the coolant from
the engine cooling system, hot oil from the engine, hydraulic systems of LL and HSC,
transmission bodies, FDA and PTO reducing gears. Avoid contact with hot surfaces of the
above mentioned units.
Mounting and dismounting of the engine shall be carried out by means of a rope, fas-
tened 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 val-
id.
5.6.2 Safety precautions for exclusion of hazardous situations related to accu-
mulator batteries and a fuel tank
During maintenance of the accumulator battery, do the following:
- avoid skin contact with electrolyte;
- clean the batteries with wiping material moistened with aqua ammonia solution
(ammonium hydroxide);
- while checking the electrolyte level, refill distilled water only;
- do not check the battery charge 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, 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 po-
larity will result in failure of the diodes and transistors;
- do not connect the AB in the electrical facilities system until the outputs/inputs polar-
ity and voltage are checked;
- do not check the electric current by spark test as it can 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 batteries from being close to the open flame sources.
5.6.3 Guidelines for safe use of leveling jacks and statement of proper places
for their installation
Use leveling jacks to lift tractor, and after lifting insert backing blocks and limit stops
under the front axle beam, rear wheel semi-axles, or base components of the tractor frame.
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922.6-0000010 OM