BELARUS-1221.2/1221V.2/1221.3 Scheduled maintenance
251
Operation 12. Check the engine air
cleaner
Check condition of the paper filter elements
(PFE) for presence of paper break and
correct installation of the PFE.
To check the basic filter element (BFE),
proceed as follows:
•
unscrew the butterfly nut (2) and remove
the pan (1);
•
unscrew the butterfly nut (3) and
remove the BFE (5);
•
check the monitor filter element (4) for
contamination without removing it from the
casing (6).
ATTENTION!
Removing the monitor
filter element (4) from the casing (6) is
not recommended.
Contamination of the monitor filter element
(4) indicates that the BFE is damaged (the
paper shutter broken, the bottoms
unstuck). In such a case, rinse the MFE
and replace the BFE.
Note:
In case of strong dust, perform the
Operation 12 every 20 hours of engine
operation.
Operation 12a. Check and tighten
fasteners of wheel hubs and nuts
Check the tightening torques and, as
necessary, tighten:
•
bolts (1) of the rear wheel hubs to a
torque of 360 to 500 N•m;
•
nuts fastening the rear wheels to the
hubs
―
300 to 350 N
•
m;
•
nuts fastening the front wheels to the
flanges
―
200 to 250 N
•
m;
•
nuts fastening the front wheel disks
to the rim brackets
―
180 to 240 N
•
m
Содержание 1221.2
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