892-0000010B OM
241
To adjust belt tension loosen fastenings of alternator. By turning the alternator hous-
ing, adjust the belt tension. Tighten the strip fastening bolts and nuts to fix the alternator.
Figure 6.4.13 – Tension check of fan drive belt
6.4.3 Maintenance services in every 250 hours of operation
6.4.3.1 General guidelines
Perform the following operations and the operations, listed in the present subsection 6.4.3.
6.4.3.2 Operation 21. Maintenance of accumulator batteries
Maintenance shall be carried out in every 250 hours of tractor operation, but not less than
once in three months.
To carry out AB maintenance, perform the following actions:
- loosen two bolts M6 fastening back folding panel (in the cab behind the operators seat),
open the panel ;
- clean the battery from dirt and dust;
- check state of terminals 2 (Figure 6.4.14) of the output pin connectors, placed under the
protecting covers «А» (Figure 6.4.14), and ventilating openings in plugs 1. When necessary,
grease the terminals with technical petroleum jelly and purge the ventilating openings;
- unscrew the plugs 1 of the filler openings of the accumulator batteries and check:
1. electrolyte level – if necessary refill the distilled water in order to increase the electrolyte
level by 10…15 mm above the protective grid or up to the level of mark on the battery case.
2. degree of battery discharge by the electrolyte density - recharge the battery if necessary
Degree of battery discharge shall not be lower than 50% in summer and 25% in winter.
1 – plugs of filler openings ; 2 – terminal of the output pin connectors.
Figure 6.4.14 – Maintenance of accumulator batteries
For D-245.5 12…17 mm
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