2022.3-0000010 OM dicating lamp does not light up, unit does not operate or FPTO can be engaged only for a very short period
ble failures in the electronic system for rear axle differential lock, front driving axle drive, front power take off shaft control, GB reducing gear and guidelines for troubleshooting”
Pressure loss in FPTO control channel
FPTO control valve spool jamming is possible. Check control valve operability by pressing the rubber cap of electromagnet. After pressing the cap cylinder rod must be shifted. If cylinder spool does not move replace the control valve. If the control valve spool moves and cylinder rod remains fixed then check tractor transmission hydraulic fluid pressure. Working pressure should be within 0.9 to 1.2 MPa. In case pressure is below the required value eliminate transmission hydraulic system failure as provided by subsection 7.10 “Possible failures of transmission hydraulic system and guidelines for troubleshooting”
Front PTO does not transmit required power, FPTO shaft end extension is rotating Operation at lower pressure in transmission hydraulic system, skidding of FPTO band-brake
Operation with FPTO at lower pressure in transmission hydraulic system is excluded. Eliminate transmission hydraulic system failure as provided by subsection 7.10 “Possible failures of transmission hydraulic system and guidelines for troubleshooting”
Control cylinder rod is moving but FPTO does not transmit full torque or after FPTO shaft disengagement PTO shaft end extension is still rotating. Cylinder rod overstroke
Adjust clearance spaces in bend-brake
FPTO does not transmit full torque or after FPTO shaft disengagement PTO shaft end extension is still rotating If clearance spaces in bendbrakes are adjusted, then it gives evidence of significant wear of bend-brakes
Replace bends of PTO shaft
Noise in FPTO reducing gear Reducing gear parts breakdown Dismount reducing gear from tractor, replace bearings and parts causing failure
7.8 Possible failures of brakes and guidelines for troubleshooting List of possible brakes failures and guidelines for troubleshooting are shown in Table 7.8. Table 7.8 Failure, Troubleshooting 308
