Operation 72. Maintenance Of Engine Air Cleaner - Belarus 922.6 Operator's Manual

5.4.4.3 Operation 72. Maintenance of engine air cleaner

Maintenance of engine air cleaner should be performed after air cleaner filter indicat-
ing lamp gets on, which is located in control indicator unit at instrument board. It means that
the filtering element is out of its lifetime.
Note – Air cleaner can be equipped with one yellow locking device instead of some
locking devices 1 of black color (Figure 5.4.29).
If the indicating lamp is on, replace main filter cartridge (MFC):
To replace MFC perform the following:
- open tractor hood mask to get access to air cleaner;
- pull black locking devices 1 (Figure 5.4.29), turn cover 2 counterclockwise and re-
move it;
- remove carefully main filter cartridge 3;
- check if there dirt in the master filter element 5 (MFE) without removing it from its
housing 4.
ATTENTION: REMOVING THE MFС FROM ITS HOUSING IS NOT RECOMMEND-
ED. DIRT IN THE MFС INDICATES A FAILED MAIN FILTER CARTRIDGE (BREAK OF
THE PAPER SHUTTER, LOOSE BOND OF THE BOTTOM). IN SUCH CASE, RINSE THE
MFE AND REPLACE THE MAIN FILTER CARTRIDGE!
- clear inside and sealing surface of housing 4 with wet cloth from dust and dirt.
- assembly of air cleaner with new main filter cartridge should be carried out in re-
verse order;
- ensure that installation of MFC is carried out correctly and close locking devices 1;
- place tractor hood mask back to its place.
ATTENTION: MANUFACTURER OF THE AIR CLEANER STRONGLY RECOM-
MENDS TO CARRY OUT MFC REPLACEMENT, RATHER THAN CLEANING, TO AVOID
DAMAGE AND TO PROVIDE THE MAXIMUM PROTECTION OF THE ENGINE!
1 – locking device; 2 – cover; 3 – main filter cartridge (MFC); 4 – air cleaner housing;
5 –master filter element.
If filter clogging indicating lamp has light up and there is no possibility to replace MFC
at once, clearing of MFC is allowed.
- remove carefully main filtering cartridge 3;
- blow over main filter cartridge carefully with cry compressed air inside-out until dust-
ing is stopped. To avoid paper shutter break air pressure should be from 0.2 to 0.3 MPa.
Point air stream at right angle to filter cartridge surface. During maintenance it is necessary
to protect filter cartridge from mechanical damage and oiling-up;
- check MFC for possible failures (shutter breakout, bottom coming unstuck);
- wipe O-ring of MFC with wet cloth and install MFC into air cleaner housing
Cleaned MFC do not have the same service life as a new one.
Figure 5.4.29–Engine air cleaner maintenance
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922.6-0000010 OM