This operation bulletin provides the following information:
-    introduction of a rear lift linkage (RLL) variant 921-4605010-A, which can be installed in place of the RLLs presented in subsection 3.12 “Rear lift linkage” of document 921-0000010B OM;
-    additional operating rules for the front lift linkage (FLL) when performing transport operations and road travel.
Note – This operation bulletin provides information only for the original buckles and lifting rods installed on the RLL 921-4605010-A. The design and adjustment of the lower and upper links of the RLL 921-4605010-A are provided in document 921-0000010B OM.

This service bulletin provides the following information:
-    the list of tractor maintenance operations after running-in has been clarified in terms of excluding the operation of changing the transmission oil after running-in the tractor;
-    a new list of tractor fuels and lubricants has been introduced.

This service bulletin provides updated information on the main wheel configurations.
Content of changes:
In the Technical Data section on page 7, the table shall be replaced;

This operation bulletin clarifies information on carrying out the procedure of maintenance service of FDA wheel gear group and clarifies the diagram in the section of the front driving axle (the location of the driven gear has been changed).

This operation bulletin contains the following information:
- rules for operating the air conditioner, maintenance, possible air conditioner malfunctions and instructions for their elimination;
- names and brands of fuels and lubricants used during operation and maintenance of the air conditioner, indicating their quantity and frequency;
- a maintenance operation has been introduced to replace the filter cartridges of the cabin ventilation and heating system.

This service bulletin clarifies the procedure for performing maintenance operations of the air cleaner.