2) 2) LEFT TURN LEFT TURN Return line 940A5SE03 When the steering wheel is turned to the left, the spool (G) within the steering unit (17) connected with steering column turns in left hand direction. At this time, the oil discharged from the pump flows into the spool (G) of the steering unit (17) through the spool (D) of priority valve in main control valve and flows into the gerotor (H). Oil flow from the gerotor flows back into the spool (G) where it is directed out the left work port (L) to the respective chamber of the steering cylinders (19). Oil returned from left and right cylinder returns to hydraulic tank through the spool (G) of the steering unit.
When the above operation is completed, the machine turns to the left. 5-4 16 19 LH 17 L H LS T 18 16 D RH 3 Pr TPr P3 LS3 DLS R D Priority valve G T3 P MCV Return line X1 32 Re Return line 31 1 L1 L 1 37 39 9PS S P 8 PS M T B1 E/G S