MTZ 1220.3 - Page 206

MTZ 1220.1/1220.3 K. Scheduled technical maintenance
K26
Оperation 30. Replace the oil filter of
the hydraulic system
Note: Perform subsequent replace-
ments of the oil filter in the hydraulic
system every 1,000 service hours.
• Remove the screws (2), cover (1) and
take out the filter element assembly us-
ing the stop (4).
• Remove the nuts (3), stop (4) and filter
element (5).
• Wash the casing (6) in detergent solu-
tion.
• Install a new filter element and reassem-
ble the filter performing the operations in
the reverse order.
• Install the filter assembly to the tank of
the hydraulic system, close with the
cover (1) and fasten with the bolts (2).
Оperation 30а. Replace the HSU tank
oil filter
Replace the HSU oil filter proceeding as
follows:
• Unscrew the four bolts (7) (M6×16) and
remove the filter assembly;
• Unscrew the two bolts (6) (M6×25) and
disconnect the filter cover (8) from the car-
rier (1);
• Remove the filter element (2), spring
(5), pressure relief valve assembly (4) and
O-rings (3), (9);
• Rinse the carrier (1) in a washing liquid;
• Install a new filter element and reas-
semble the filter performing the operations
in the reverse order as compared to dis-
assembling.
• Install the filter assembly into the HSU
tank making sure that the seals (10) and
the seals between the carrier and the tank
are installed correctly. Tighten the bolts (6,
7);
NOTE: Perform subsequent replacements
of the oil filter in the HSU and hydraulic
system every 1,000 service hours.