Branson 3015h, Owner'S Manual

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4
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9 42hw-201601
Chapter 4 transmission
4
3015r(h)/3515r(h)/4015r(h)/F36r(h)/F42r(h) traCtor
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The engine torque is transferred to the HST through the HST input shaft (pump shaft) (1). Then, it is converted
to hydraulic pressure in the HST to turn the HST motor shaft (2). As the HST motor shaft is connected to the
range shift drive shaft (6), rotation of the range shift drive shaft turns the 26T gear (3) which then turns the
range shift drive shaft (5) through the engaged 29T gear (4).
Therefore, the amount of depression of the forward driving pedal determines the hydraulic pressure quantity
for the HST input shaft (pump shaft), and this change of hydraulic pressure leads to consequential change in
HST motor shaft speed, enabling continuous shift operation.