Maintenance No. 1 (M-1) after
each 125 hours of operation
Perform the previous actions plus as fol -
lows:
Action 5. Oil level and condition in the
engine air cleaner tray (except for
MTZ-900.3/920.3/950.3/952.3)
Loosen the two nuts (1) and remove the
tray (2) of the air cleaner (3). Check the
oil level in the tray, which shall be at the
level of the ring collar “A”.
Add oil, if necessary. If water is contami -
nated with dirt or in oil, replace it.
ATTENTION! Do not overfill the tray with
oil above the ring collar “A”, since it can re -
sult in oil ingress into the engine combustion
chambers and development of false im -
pression about increased oil consumption
for burning.
Action 5а. Servicing the air cleaner
(MTZ-900.3/920.3/950.3/952.3)
The clogging of the air cleaner filtering
elements is monitored by using a soiling
indicator. In case of increased clogging,
a signalling lamp lights up on the pilot
lamp block of the dashboard.
After running-in the tractor (30 hours of
operation) and after each 125 hours of
operation, service the air cleaner. To do
this, perform the following procedures:
• Remove the right side grid from the
front part and facing to get access to the
air cleaner;
• Pull the latch (1) (yellow), turn cover (2)
counter-clockwise by 12.5 and remove
it;
• Remove the major filtering element (3)
(MFE);
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