McHale HS2000 Round Bale Wrapper
34
5.9 Wrapper hydraulic set-ups
5.9.1 Setup (D)
1. Fit wrapper hitch to baler as appropriate. This will depend on the model of baler
to which it is being fitted.
2. Fit combined flow control/diverter valve in an appropriate position on the baler.
For example, at the back end of the baler hitch (above the pick up reel).
The diverter section is not used for this situation.
3. Select a single acting spool valve on the tractor (preferably with a detent to hold
the lever open in one position). This will be used for operating the baler and the
wrapper.
4. Connect a hydraulic hose from Port B on the flow control/diverter valve to the
selected spool valve.
5. Connect the baler return hose to a freeflow return to tank.
6. Connect Port 2 on the flow control/diverter valve to the wrapper feed hose. This
ends at the wrapper hitch on the baler.
7. Connect Port 1 on the flow control/diverter valve to the baler feed hose.
8. Connect wrapper return directly to a freeflow return to tank on the tractor. Refer
to your tractor manual to see where this is best achieved. This freeflow is very
important so that the working of the wrapper will not be impaired.
9. Blank off Ports A and 3 on the flow control /diverter valve.
The system works as follows:
1. Move hydraulic valve in one direction to feed baler and wrapper.
NOTE: The graduated flow control knob must be adjusted to give
an oil flow to the wrapper of 25-30 l/min, just enough to allow the
wrapper to work
The first symptom of low oil flow is that the cut and hold will not release
enough to catch the plastic at the end of the cycle.
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