2022.3-0000010 OM
255
1 – tension lever; 2 – belt; 3 – compressor.
Figure
6.4.17 –
Adjustment of air conditioner compressor drive belt tension
6.4.3 Maintenance services in every 250 hours of operation
6.4.3.1 General instructions
Carry out previous operations and the operations specified in subsection 6.4.3.
6.4.3.2 Operation 31. 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:
- open the tractor hood;
- clean the battery from dirt and dust;
- check state of terminals 2 (figure 6.4.18) of the output pin connectors, placed un-
der the protecting cover “A” (figure 6.4.18), and ventilating openings in plugs 1. If neces-
sary, grease the terminals with technical petroleum jelly and clean the ventilating open-
ings;
- unscrew plugs 1 of accumulator batteries filler openings and check the following:
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 casing.
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.
.
B
C
D
D
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