4 - Sprayer setup
29
Open centre hydraulics (optional)
The open centre hydraulics block is necessary if the tractor uses open
centre hydraulics and/or load sensing.
The valve(1) and (2) is factory set for open centre hydraulics, but if closed
centre hydraulics is used (also in combination with load sensing), screw
in the valve (clockwise).
Certain tractor models are able to use Load Sensing without connecting
an external sensing line. But if optimal sensing control pressure cannot
be obtained, an external sensing line needs to be connected (3). Please
consult your tractor dealer for correct setup and correct connection.
±
WARNING! Before operating the hydraulics, the valve should be
set according to the specific tractor model. If you are unsure of
the type of hydraulic system in your tractor, please contact your
tractor dealer.
Combinations of settings for flow element and circuit value:
*if tractor requires pressure relief, contact your tractor dealer for further advice.
±
WARNING! Always be sure to fully open or close the open/closed center selection valves. Failure to do so may cause
damage to vital pump parts.
±
WARNING! It is essential that connectors on sensing line are kept totally clean. Failure to do so can result in impurities
entering the pump and thereby cause damages to vital pump parts.
Valve no.
1
2
3 (LS port)
Open centre
Out
Out
Not connected
Closed centre
In
In
Not connected
Load sensing (LS)
In
Out*
Connected
L
Summary of Contents for MASTER PRO VHH
Page 6: ...Table of Contents 6 ...
Page 8: ...1 EC Declaration 8 ...
Page 12: ...2 Safety notes 12 ...
Page 50: ...5 Operation 50 ...
Page 52: ...6 Maintenance 52 Boom lubrication oiling plan Lift lubrication oiling plan ...
Page 70: ...7 Fault finding 70 ...
Page 76: ...8 Technical specifications 76 Charts Boom hydraulic Z ...
Page 78: ...8 Technical specifications 78 ...
Page 82: ...HARDI INTERNATIONAL A S Helgeshøj Allé 38 DK 2630 Taastrup DENMARK ...