McHale HS2000 Round Bale Wrapper
32
Load sensing without Power Beyond fitted
There are two further variations on this system as described below. This will only affect
the wrapper setup, when a Power Beyond connection is not available:
a. Load-sensing (not compensated): This is the more basic of the two versions
usually found on the “economy” tractor models. The disadvantage of this
system is that it does not maintain the set oil flow to the wrapper when another
auxiliary valve is operated, e.g. lifting the baler reel while wrapping, will cause
the tractor to send all the oil flow to the wrapper, which results in inadequate oil
pressure to lift the reel.
b. Load-sensing (compensated): This is the better option as it allows for each
tractor auxiliary valve, to be set to deliver a fixed amount of oil, and providing
that the total amount of oil required does not exceed the max oil flow of the
tractor, 2, 3 or even 4 auxiliary valves can be used at the same time.
Once the correct tractor system is identified, see “Which hydraulic system is used?” on
page 33 to select the best set-up for the HS2000.
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