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5.4.3 Maintenance services in every 250 hours of operation (2MS-1), in every
500 hours of operation (MS-2), in every 1000 hours of operation (MS-3), in every
2000 hours of operation (special maintenance) and maintenance service that does
not coincide with intervals of MS-1, 2MS-1, MS-2, MS-3 and special MS
5.4.3.1 General instructions
ATTENTION: ONLY DEALERS ARE ALLOWED TO PERFORM OPERATIONS 2 MS-1,
MS-2, MS-3 AND SPECIAL MAINTENANCE EXCEPT FOR THE OPERATIONS "CHECK / AD-
JUSTMENT OF FRONT WHEEL TOE-IN" AND "CHECK / ADJUSTMENT OF CLEARANCES IN
STEERING JOINTS"!
The operations 2MS-1 shall be performed after every 250 hours of tractor operation to-
gether with the operations of STM and TM-1.
The operations TM-2 shall be performed after every 500 hours of tractor operation to-
gether with the operations of STM, TM-1 and 2TM-1.
The operations TM-3 shall be performed after every 1000 hours of tractor operation to-
gether with the operations of STM, TM-1, 2TM-1 and TM-2.
The operations of special maintenance shall be performed after every 2000 hours of
tractor operation together with the operations of STM, TM-1, 2TM-1, TM-2 and TM-3.
5.4.3.2 Operation 35. Check / adjustment of clearances in steering joints
To check the backlash and clearances in steering joints 1 (figure 5.4.24) of steering link
4, it is necessary to turn the steering wheel to both sides when the engine is running. In case
the steering wheel has the backlash of more than 25° as shown in figure 5.4.23, eliminate the
steering joint clearance by performing the following actions:
- stop the engine;
- remove locking wire 3 (figure 5.4.24);
- screw threaded plug 2 in to eliminate the steering joint clearance;
- lock plug 2 with wire 3.
If the steering joint clearance can not be eliminated by tightening threaded joints, take
the hinge joint to pieces and replace the worn-out parts.
Besides, weak tightening of castle nuts of HSC hydraulic cylinders cone-shaped pins
may be a reason for increased steering wheel clearance angle.
Figure 5.4.23 – Check of clearances in steering joints
1 – hinge joint; 2 – plug; 3 – locking wire; 4 – steering link.
Figure 5.4.24 – Maintenance of steering joints
167
2022.6-0000010 OM
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