6
Hydraulic Systems
Basic Hydraulic System
Here we have a spool valve in our simple hydraulic
system. You can see that the valve is in the neutral
position and all the flow from the pump is directed
back to the reservoir.
If the spool is moved upward, the oil flow from the
pump is directed through the spool to one end of the
lift cylinder. The oil in the opposite end of the cylinder
is pushed out as the ram extends, and will pass
through the valve and return to the reservoir.
Since the fluid from a positive displacement pump
must flow continuously whenever the pump is
running, it must have some where to go if not being
used by the actuators. If the load on the cylinder
becomes too great or if the ram bottoms out, the flow
from the pump will be directed past the relief valve
returning to the reservoir.
The flow diagram in the previous two illustrations
shows the piston (barrel) end of the cylinder being
pressurized to lift the load. Some lift circuits on Toro
equipment pressurize the rod (ram) end of the
cylinder to lift the load (e.g. Reelmaster 5000 series).
Lift Cylinder
Toro University Technical Training
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro 09169SL |
| Download File |
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| Document Type | Catalog |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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| Document File Type | |
| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
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