51
When the HST pedal is pressed forward, the oil fed to the HST variable pump flows together to the rear wheel motor
after the oil circuit is changed via the 2WD/4WD valve. (red and light blue arrows in the diagram above)
Therefore, since twice the volume of oil is sent to the rear wheel motor, the driving motor is operated at high speed and
the sub-transmission shifts to "high".
The front wheel motor forms a rotating circuit (dark blue arrow) with the tires turning due to contact with the driving
surface, thereby creating a circuit that only circulates oil.
The oil that drives the motors is returned to the variable pump (green arrow).
1) Oil flow during 2WD
Fig.3-2-2
Summary of Contents for SG280E
Page 1: ...SLOPE MOWER 2011 4 MODEL SG280E...
Page 2: ...1...
Page 7: ...6 Body and operation areas 1 2 Overall view part names Fig 1 2 1 Fig 1 2 2...
Page 8: ...7 Fig 1 2 3 Total elapsed time Seat swing lever...
Page 10: ...9...
Page 14: ...11 Model N843 2 2 Cross section diagrams Fig 2 2 1...
Page 15: ...12 Model N843 Fig 2 2 2...
Page 53: ...50 HST 2WD 4WD 2WD 4WD 2WD 4WD 3 2 Functions Fig 3 2 1...
Page 59: ...56...
Page 60: ...56 Section 4 Electric Components 4 1 Layout diagram 4 2 Safety system electric components...
Page 109: ...105 Section 6 Wiring Diagram 6 1 Wiring diagram...
Page 110: ...106 6 1 Main circuit diagram...
Page 111: ...107 Fig 6 1 1...
