MTZ 952.2 - Page 188

Maintenance
MTZ series 900
188
Maintenance No. 2 (M-2) after
each 500 hours of operation
Perform the actions of the previous
maintenance plus the followings:
Action 20. Centrifugal oil filter of the
engine (except for MTZ-
900.3/920.3/950.3/952.3)
• Turn out the nut (1) and remove the
cap (2).
• Insert a screwdriver (5) or a rod be-
tween the filter body and the rotor bot-
tom to lock the rotor (3) against rota-
tion and remove the rotor barrel (3) by
turning the rotor nut with spanner (4).
• Remove the cover (6), impeller (7)
and filtering grid (8) of the rotor. If
necessary, clean and flush the grid.
• Remove the deposits from the inner
walls of the rotor barrel using a non-
metallic scraper.
• Clean all the parts in a washing solu-
tion and blow with compressed air.
• Reassemble the filter by performing
the same operations in the reverse or-
der. Prior to assembling the barrel with
the rotor casing, grease the seal ring
with motor oil.
• Align the balancing marks of the bar-
rel with those on the rotor casing.
Tighten the barrel-fastening nut with a
slight force until the barrel is fully set
on the rotor.
• The rotor shall rotate freely, without
jamming.
• Fit the cap (2) and tighten nut (1)
with 35-.50 N•m torque.
NOTE: After stopping the engine, the
noise of the turning rotor shall be head
for 30-60 s. This indicates that the filter
operates properly.
ATTENTION! For supercharged diesel
engines, clean the centrifugal oil filter
after each 250 hours of operation.