Ducati SPORT TOURING ST3 Manuel D'utilisation Et Entretien page 163

Checking brake and clutch fluid level
Fluid level should never fall below the MIN mark on
each reservoir (fig. 67). If level drops below the limit, air
might get into the circuit and affect the operation of the
system involved.
Brake and clutch fluid must be topped up and changed at
the intervals specified in the routine maintenance chart
(see Warranty Card) by a Ducati Dealer or Authorized
Workshop.
E
Important
It is recommended all brake and clutch lines be
changed every four years.
Clutch system
If the control lever has exceeding play and the
transmission snatches or jams as you try to engage a
gear, it means that there is air in the circuit. Contact your
Ducati Dealer or an Authorized Workshop to have the
system inspected and air drained out.
Warning
Clutch fluid level will increase as clutch plate friction
material wears down. Do not exceed specified level
(3 mm above minimum level).
66
All manuals and user guides at all-guides.com
Brake system
If you find exceeding play on brake lever or pedal and
brake pads are still in good condition, contact your Ducati
Dealer or an Authorized Workshop to have the system
inspected and any air drained out of the circuit.
plastic parts if accidentally spilled.
Warning
Brake and clutch fluid will damage paintwork and
fig. 67