Speed Changeover Valve Operation
1 : Low speed fixed
The tilting piston chambers are connected to tank(Max. angle & low speed)
2 : High speed
If there is Pi,travel speed valve is pushed to the right.
And high pressure is supplied to tilting piston chamber. (Min. angle & high speed)
3 : Automatic down-shift
If the main pressure(red color)is increased, travel speed valve is pushed to the left. And the tilting piston
chamber is connected to tank.
Picture text:
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