Manual
EXCELENT Premium 6; 8
19
│
52
3.6.
CONNECTONG THE HYDRAULIC MOTOR OF THE FAN
3.6.1
Description of the function
The hydraulic fan is powered directly from the tractor´s hydraulic system.
For proper operation, the hydraulic pump of the tractor must supply sufficient amount of oil so that the fan
revolutions are not affected by decreased number of revolutions of the tractor engine or by another hydraulic
circle being switched on.
The fan revolutions are set by regulating the oil flow rate. To change the fan revolutions, the tractor must be
equipped with regulation of the oil flow rate.
A pressure filter is incorporated in the hydraulic drive in such a way so as to catch any impurities coming to the
hydraulic motor together with the oil. The hydraulic motor is thus protected from damage.
Picture 24.1 – Hydraulic drive
Tab. 7
Rotary hydraulic
motor
Capacity (cm
3
/rev.)
8
Minimum revolutions (rpm)
1000
Maximum revolutions (rpm)
5000
Pressure oil - „P“
Minimum pressure in the “
PRESSURE HOSE
” (bar)
130
Maximum flow rate in the “
PRESSURE HOSE
” (l/min.)
40
Outlet - „T“
Maximum pressure in the “
PRESSURE HOSE
” (bar)
5
Filter
Hydraulic motor
Fan
Pressure hose
Outlet hose
Outlet - „T“
Pressure - „P“
Point for measuring
pressure in the outlet hose