Oil leakage from the seals
Strengthening for prolonged storage
Clean the area and check after a few days
Contact an authorised service centre
Excessive quantity of lubricant
Excessive vibrations and/or noise
Wheel reduction unit not installed correctly
Contact an authorised service centre
Faulty or poorly lubricated bearings
Teeth with dents or chipping
Multiple parking disc brake does not release
Lack of pressure in the braking circuit
Check the connection to the brake
Adhesion of the discs due to parking time
Apply pressure to the brake and turn the
wheel, starting the engine
Contact the service centre
Multiple parking disc brake does not lock
Residual pressure in the circuit
Check the hydraulic circuit
Contact an authorised service centre
With the engine running, the wheel reduction
unit does not turn
Incorrect engine installation
Check the coupling between the engine and
the wheel drive
Contact an authorised service centre
Wheel reduction unit disengaged
See the DISENGAGEMENT section
Excessive or insufficient oil
Check the type and status of the lubricant
Faulty or poorly lubricated bearings
Contact an authorised service centre
Multiple disc brake does not open fully
Check the brake opening pressure
Contact a service centre.