---19---
C. General description
C 7.
Hydraulic system
N C26
UUSI KUVA
The tractors hydraulic system has both a low pressure
circuit and a high pressure circuit. Both circuits have their
own pump.
The capacity of the low pressure circuit
pump is
31 l/min
at 2270 r/min.
The high pressure pump
capacity is 75 l/min
at free flow pressure which enables
effective use of the auxiliary hydraulics.
The high pressure circuit controls:
--- steering system (prioritized)
--- working hydraulics
--- auxiliary hydraulics
--- trailer brake valve (extra equipment)
The low pressure circuit controls:
--- quick---shift gear
--- powered front axle
--- PTO
--- differential lock
--- gearbox lubrication
Tractors have an electro---hydraulic Autocontrol B (=ACB)
linkage. The linkage is controlled through the electrical
potentiometers and switches.
Pre---programmed functions:
--- draft control/position control combining ratio plus
sensitivity on the regulator, the sensitivity adjustment is
automatic.
--- lowering speed (independent of load)
--- transport height
--- drive balance control system
Max. lifting capacity of the hydraulic lift is as follow:
--- Ø 80 mm lift cylinder 4480 kg
The front linkage is available as extra equipment. Lifting
capacity of the front linkage is 2850 kg.
