80-0000010B OM
354
End of Table 7.4.1
Failure,
external manifestation, cause
Troubleshooting
Release disks are worn out Replace the disks
Friction liners of DL clutch disks
are worn out
Replace the disk assembly
DL clutch diaphragm is damaged Replace the diaphragm
Low pressure of oil delivered to the
actuating mechanism of DL
1)
Adjust the pressure delivered to the DL clutch by
changing the quantity of adjusting washers 23 (fig-
ure 3.4.4). The pressure shall be In the range 0.9
to 1.3 MPa.
Low pressure of oil delivered to the
actuating mechanism of DL
2)
Replace the reduction valve
Sticking of DL sensor spool valve
2)
Take off the DL sensor and rinse it in diesel fuel or
replace it
Faulty adjustment of DL control
mechanism
2)
Adjust the control mechanism as indicated in sec-
tion 3.4.5.4 “Rear axle differential lock cable con-
trol adjustment”
1)
For tractors equipped with HSC
2)
For tractors equipped with HPS or HSC with HPS body
7.5 Possible failures of the rear power take-off shaft and instructions for trou-
ble-shooting
A list of possible failures in rear axle power take-off shaft and instructions for their
troubleshooting are given in Table 7.5.1.
Table 7.5.1
Failure,
external manifestation, cause
Troubleshooting
PTO shaft fails to transmit full torque (slipping) or goes on rotating after be-
ing turned off
Failed control adjustment due to
significant wear of friction liners of
brake bands or due to other rea-
son
Adjust the rear PTO as indicated in subsection 3.5
“Rear power take off shaft”
Non-precise switching of rear PTO
control lever (Jams, abutments,
impurities, etc. in the connections
of rear PTO control mechanism)
Eliminate the causes preventing free movement of
rear PTO control mechanism parts. The rear PTO
control lever shall have rigid fix in positions “PTO
engaged” / “PTO disengaged”
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