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7 - Fault finding
99
Hydraulic System, Z-boom version
IntelliTrack
FAULT
PROBABLE CAUSE
CONTROL/REMEDY
No boom movements when activated.
Insufficient hydraulic pressure.
Check oil pressure.
Check tractor hydraulic oil level.
Insufficient oil supply.
Oil flow must be min. l/min. and max. 130 l/min.
Check tractor hydraulic oil level.
Blown fuse(s).
Check / replace fuse in junction box.
Bad / corroded electrical connections.
Check / clean connections, multi plugs etc.
Insufficient power supply.
Voltage on activated solenoid valve must be more
than 8 volts.
Use wires of at least 4 mm for power supply.
Defective relay / diodes in junction box.
Check relays, diodes and soldering at PCB in junction
box. LED diodes indicate boom functions.
Clogged restrictors in bypass block.
Remove and clean restrictors in bypass block (See
hydraulic diagram). Change hydraulic oil + filter.
Wrong polarity.
Check polarity. Red positive (+), black negative (-).
ParaLift lock does not lock.
Boom lift raises to max. position, when tractor
hydraulics are engaged.
Back pressure in return line exceeds 15 bar.
Connect the return line with a free flow to hydraulic oil
reservoir.
Divide return line in two and lead return oil back to
reservoir via two spool valves.
Oil heats up in Closed Centre systems.
Bypass valve does not close properly.
Check / close (screw in) by-pass valve.
Internal leaks in flow regulator.
Replace flow regulator O-rings and backup rings.
Replace flow regulator.
Individual hydraulic piston does not move.
Clogged restrictor.
Dismantle and clean restrictor.
FAULT
PROBABLE CAUSE
CONTROL/REMEDY
IntelliTrack steers slowly or erratically.
Air in system.
Vent the Intellitrack cylinders - see “Venting the Steering
Hydraulics”
Front potentiometer bar/springs move
erratically.
Re-arrange the spring setup, so that the potentiometer bar
moves freely.
IntelliTrack has non-linear steering or is not
following the tractor’s track.
Front potentiometer springs are not parallel.
Refit springs to parallel position and check potentiometer
reading - see “IntelliTrack Front Potentiometer Calibration”.
Содержание NAVIGATOR FORCE
Страница 4: ...1 EU Declaration 4 ...
Страница 12: ...2 Safety Notes 12 ...
Страница 54: ...4 Sprayer setup 54 ...
Страница 76: ...6 Maintenance 76 Boom lubrication oiling plan ...
Страница 112: ...8 Technical specifications 112 ...
Страница 116: ...Index 116 ...
Страница 118: ...HARDI INTERNATIONAL A S Herthadalvej 10 DK 4840 Nørre Alslev DENMARK ...