131
Operation
5
NOTE: To ensure that the hydraulic circuit operates in
a regular way, the level of the transmission oil must be
frequently checked and topped up if necessary, as indi-
cated in the “Checking the transmission oil level” part of
the Maintenance section.
WARNING: Make sure that the hydraulic
cylinders of the connected implements con-
tain the same type of oil as the transmission
unit of the tractor to prevent this from being
polluted and leading to faulty operation.
WARNING: The tractor must only be started
with the auxiliary valve levers are in neutral.
Control valve operation
- Standardcontrolvalve.
IfsettopositionsAandBandreleased,thecontrol
leverautomaticallyreturnstotheholdposition(N),
lockingtheimplementinthepositionithasassumed.
- Controlvalvewith“kick-out”automaticrelease(op-
tional).IfsettopositionsAandB,thecontrollever
remainsblockedintheassumedposition.
Oncethecylinderhasreachedendofstroke,the
pressureautomaticallyreleasesthelever,settingit
backintheneutralposition(N).
Thelevercanbemovedbacktotheneutralposition
byhandbeforethecylinderreachesendofstroke.
- Controlvalvewithfloatingposition(optional),used
forimplementsthatnormallyrestonthegroundand
followitsrelief(e.g.graders,snow-ploughs,etc.).The
floatingpositionisobtainedbymovingthelever(2)
tothesecondsettinginposition(F),whereitremains
locked.
- Specificcontrolvalve(optional)forusewithhydraulic
motors.
NOTE: Do not use the control valve for hydraulic mo-
tors to supply single/double-acting cylinders to avoid any
risks of accidents when using the connected hydraulic
equipment.
Joystick(4)-Itiscoupledtotwoauxiliarycontrolvalves.If
shiftedforward,itcontrolsthe1stvalve,ifshiftedlaterally
itcontrolsthe2ndvalve.Thelevercanbelockedby(5)
inthreepositions:
-Turnedanti-clockwiseanddownward:Everymove-
mentoftheleverislockedinneutral.
- Turned clockwise and in intermediate position: The
movementforward/backisallowedtocontrolasingle
controlvalve.Tocontrolthesecondcontrolvalve,the
lockingdevicemustbepulledupandthelevershifted
laterally.
- Turnedclockwiseattheendoftravel:Thelevercan
bemovedineverydirectionandcontrolsbothvalves.
AUXILIARY CONTROL VALVES [4.2.f]
Controlvalveleversoperatethecorrespondingvalve:
lever1operatesvalvenumber1,lever2operatesvalve
number2andsoon.
IMPORTANT: As the auxiliary control valves have differ-
ent configurations according to specific requirements
of the user, please ask your Dealer for details about the
proper and safe use of hydraulic equipment.