Sheyenne tooling & Mfg 500CT, Руководство оператора

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HYDRAULIC SYSTEM PRINCIPLES OF OPERATION
Refer to COMPACT TRACTOR HYDRAULIC SYSTEM on preceding page. Oil is
supplied to the system at the loader circuit at point A. Oil flows to the flow
regulator, which controls the amount of oil that is taken from the tractor. From
here it travels to the suction port of the pump, where the pump “steps up” the
flow. This oil is then pumped through the relief valve block to the female flat
faced coupler on its way to run the snow blower. On the way back from the snow
blower, the oil passes through the relief valve block and is filtered before
returning to the suction side of the pump. Meanwhile, the same amount of flow
(now filtered) that was taken from the tractor is returned to the tractor
trans/axle by the hose coming out the side port of the filter head. On units
equipped with a two-stage flow control, the other line running from the pump
pressure port is used to signal the two-stage flow control when the pump is
engaged by the operator.
INSTALLATION INSTRUCTIONS FOR HYDRAULIC SYSTEM
It is critical where the oil is taken from the tractor (at point A on your diagram).
Find a pressurized oil line between your tractor auxiliary pump and your loader
circuit. Intercept pressurized oil out of the pump before the oil reaches any other
system. To make sure you have found the correct location, you can put a
pressure gauge at this location. Any operation from the cab should make the
pressure go up such as running of the loader, operation of the 3-point hitch, and
operation of remote couplers. Most of the time, you will either be able to place a
tee or tap into a banjo type of joint fitting to obtain your pressurized oil.
Place your flow regulator anywhere between locations A (supply oil) and the
suction port of the pump. Measure the hose lengths you need. You will need (6)
different hoses made and routed as shown in the diagram on units equipped with
two-stage flow control. (5) hoses are needed on units without the two-stage
flow control.
A common mistake in installation is placing the hoses on the wrong port of the
pump. The pump ports should be marked as to which is the suction or inlet.
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