Belarus 80.1/80.2/82.1/82.2/82
Р — Operation and Service Manual
Section 7. Maintenance Procedures
89
DISMANTLING AND CLEANING OF
THE OIL CENTRIFUGAL FILTER
Cleaning of the centrifugal oil filter rotor
is to be carried out simultaneously with
changing oil in the diesel-engine crank-
case.
Clean the rotor in a sequence, as fol-
lows:
а) unscrew cap nut (1) (see Fig. 37) at-
taching bowl (2) of the centrifugal oil
filter and remove the bowl;
б) insert a screw-driver (a small diame-
ter rod) between the rotor bottom
and the filter body and fix rotor to
prevent it from turning (see Fig. 38).
Using a S = 36 mm spanner and ro-
tating nut (4) which fixes the rotor
cup, pull off cup 3 from the rotor
body;
в) using a wooden scraper, remove a
sludge layer from the inner walls of
the rotor cup;
г) clean the jet openings in the upper
part of the rotor shaft, if required;
д) reassemble the rotor in the reverse
order to that of dismantling opera-
tions; be sure to make the marks on
the rotor and the rotor cup coinci-
dent. Before fitting the rotor cup in
place, cover the packing ring with
engine oil. Tighten the cup nut with a
light effort, until the cup is driven
home onto the rotor; tighten the nut
1 of the bowl 2 to 3,5-5,0 kgf
•
m (35-
50 N
•
m) torque;
е) check operation of the centrifugal oil
filter.
After the diesel-engine is stopped, there
should be hear a slight noise of the spin-
ning rotor under the rotor bowl for some
30-60 seconds.
Fig. 37
Fig. 38