Kubota M7131, Operator'S Manual

Page: 198 / 298

HYDRAULIC UNIT 166
AUXILIARY HYDRAULICS
A
Before letting a large amount of oil into the hydraulic
cylinder, hydraulic motor or other implements, consult
your local KUBOTA Dealer to confirm the possible oil
quantity and additional oil quantity taken from the
tractor and other requirements.
Improper handling may cause serious trouble: seizure
of the transmission, for example.
B
Power-beyond Type Hydraulic Outlet
(if equipped)
[Premium, Premium KVT models]
The power-beyond type hydraulic outlet is a load sensing
type port through which a large amount of oil can be
directly taken out of the hydraulic pump.
Connect an implement, equipped with a closed-center
hydraulic valve, to this port.
With all necessary hoses in place, the load sensing
control hose serves to detect the load level as a negative
one. The pump's flow rate is thus controlled to keep
constant the load sensing differential pressure, which is
the difference between the pump pressure and this
negative pressure.
B
Hydraulic Drain Port
This port leads to a transmission case. When you want to
return oil to a transmission case, connect the return hose
to this port.
(1) Load-sensing control hose connection
(2) Power-beyond connection (from pump)
(3) Return hose connection (from implement)
(1) Drain hose connection (to gear box)