Cub Cadet 8404 - Manual (Page 239)

HYDRAULIC SYSTEM
9-5 D615-W03 May-2003
615W904B
(1) Oil Tank (Transmission Case)
(2) Oil Filter
(3) Hydraulic Pump
(4) Engine
(5) Relief Valve
HYDRAULIC OIL FLOW
1. If the engine (4) is started and the hydraulic pump
(3) is rotated, hydraulic pump intakes oil from trans-
mission case (1) through intake pipe. Hydraulic
pump is supplied with oil and oil sludge is removed
by oil filter.
2. Oil passes through filter by hydraulic pump to hy-
draulic cylinder. If tractor installed with a front loader,
oil pressure is extracted into front loader from hy-
draulic block, re-flown in hydraulic block, and then
connected with hydraulic circuit.
3. Oil enters into position control valve through the
distribution pipe.
(6) Front Hydraulic Block
(7) Position Control Valve
(8) Hydraulic Cylinder
(9) Aux. Control Valve
(10) Hydraulic Cylinder Block
4. The position control valve selects oil flow and oil
enters the hydraulic cylinder or exhausts into oil tank
(transmission case) to operate 3-point hydraulic
system.
* Hydraulic system contains a relief valve to limit the
max. pressure of the hydraulic circuit.
* To use hydraulic working machine, operate work-
ing machine cylinder using the double acting valve
when extracting hydraulic pressure.
3. HYDRAULIC CIRCUIT DIAGRAM OF 3-POINT HYDRAULIC SYSTEM