Action 30. Steering knuckles of the
front axle (MTZ-900/900.3/950/950.3)
Using a gun, make 10-12 injections of
lubricating grease through the pressure
lubricators (one per each knuckle).
Action 31. Checking the air-tightness
of the air cleaner and inlet duct joints
(except for MTZ-
900.3/920.3/950.3/952.3)
• Remove the monocyclone (1) and
clean it internal surface.
• Loosen the clamps (2), remove the
bolt (4), release the clamp (3) and
remove the air cleaner (5).
• Disassemble the air cleaner, having
loosened the nuts (7) and removed the
tray (6).
• Clean the internal tray cavity and fill in
fresh motor oil.
• Extract three filtering elements,
wash them in diesel fuel and blow
with compressed air. Clean the cen-
tral pipe. Reassemble the air cleaner
and install it onto the engine.
• Check the air-tightness of all joints and,
if necessary, tighten them up. The en -
gine operating at medium crankshaft
speed (1000 rpm) shall stop when shut-
ting down the air intake pipe.
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