New Holland T4.105F, Руководство оператора

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6 - WORKING OPERATIONS
Hydraulic lift with electronic control
WARNING
Crushing hazard!
The lifting systems must be operated by qualified personnel who are aware of the correct procedures
to follow. Make sure all lifting equipment is in good condition, and all hooks are equipped with safety
latches.
Failure to comply could result in death or serious injury.
W0256A
WARNING
Crushing hazard!
Always lower the machine hydraulic lift and all other hydraulic equipment to the ground before shut-
ting off the engine and removing key.
Failure to comply could result in death or serious injury.
W0063C
The electronically controlled hydraulic lift offers considerable advantages over mechanical lifts as it features higher
levels of working precision and sensitivity and it is controlled by microprocessors.
The electronic control system enables selecting three different work modes:
• position control
• draft control
• Float operation
Unlike a conventional hydraulic lift, which is fitted with complicated lever mechanisms, the electronically controlled
hydraulic lift is equipped with electronic sensors that transmit variations in conditions to the electronic control unit,
which via the hydraulic system operates the lift arms.
For working safely
• Before operating them, make sure the control settings of the electronically controlled lift are as desired.
• Never leave the implement in the raised position when the tractor is stationary.
• With the tractor stationary and the engine running, the external controls located on the mudguards remain enabled.
Take care not to operate the controls inadvertently.
• The control unit is provided with self-diagnosis functions that signal any abnormalities in the control system.
• When possible, disconnect the implement or the part that needs welding from the tractor.
NOTE: To avoid damaging the electronic components, follow the instructions noted below when carrying out arc
welding on tractors fitted with electronic lifts or on connected implements.
• When possible, disconnect the implement or the part that needs welding from the tractor.
• Disconnect the two battery cables from the terminals.
• Connect the welding machine ground clamp as close as possible to the area where welding is to take place.
• If welding is to be carried out within
1 m ( 39.37 in ) of the control unit, the unit must first be removed.
• While welding, make sure that the cables do not pass above or near electrical or electronic leads.
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