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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 / ADJUSTMENT OF FRONT WHEEL TOE-IN" AND "CHECK / ADJUSTMENT
OF CLEARANCES IN STEERING JOINTS"!
The operations 2MS-1 shall be performed every 250 hours of tractor operation to-
gether with the operations of STM and TM-1.
The operations TM-2 shall be performed every 500 hours of tractor operation together with
the operations of STM, TM-1 and 2TM-1.
The operations TM-3 shall be performed every 1000 hours of tractor operation together
with the operations of STM, TM-1, 2TM-1 and TM-2.
The operations of special maintenance shall be performed every 2000 hours of tractor op-
eration together with the operations of STM, TM-1, 2TM-1, TM-2 and TM-3.
5.4.3.2 Operation 33. Check / adjustment of clearances in steering joints
To check the backlash and clearances in steering joints 1 (figure 5.4.19) 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 5.4.18, eliminate
the steering joint clearance by performing the following actions:
- stop the engine;
- remove locking wire 3 (figure 5.4.19);
- screw threaded plug 2 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 5.4.18 – Check of clearances in steering joints
1 – hinge joint; 2 – plug; 3 – locking wire; 4 – steering link.
Figure 5.4.19 – Maintenance of steering joints
157
1523.5-0000010 OM
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