Hydraulic And Pneumatic Systems - PRONAR T669 Operator's Manual

Pronar T669
• Before hitching trailer to tractor check that both machines are in good technical
condition.
• After completing the coupling of the trailer check the safety of the hitch.
• Be especially careful when hitching the machine.
• When hitching, there must be nobody between the trailers. Person assisting
hitching up machines should stand outside the area of danger and be visible to
the tractor driver at all times.
• Do NOT proceed with disconnecting the second trailer from the tractor when load
box is raised.

2.1.4 HYDRAULIC AND PNEUMATIC SYSTEMS

• When operating, the hydraulic and pneumatic systems are under high pressure.
• Regularly check the technical condition of the connections and the hydraulic and
pneumatic leads. There must no oil or air leaks.
• Cut-off valve in the hydraulic tipping system limits the tipping angle of the load
box when tipped to the rear. The length of the control cable controlling this valve
is factory adjusted by the Manufacturer and must not be changed when the trailer
is used.
• In the event of malfunction of the hydraulic or pneumatic system, do not use the
trailer until the malfunction is corrected.
• When connecting the hydraulic conduits to the tractor, make sure that the tractor
hydraulic system and trailer are not under pressure. If necessary reduce residual
pressure in the system.
• In the event of injuries being caused by pressurised hydraulic oil, contact a doctor
immediately. Hydraulic oil may find its way under the skin and cause infections. In
the event of contact of oil with eye, rinse with large quantity of water and in the
event of the occurrence of irritation consult a doctor. In the event of contact of oil
with skin wash the area of contact with water and soap. Do NOT apply organic
solvents (petrol, kerosene).
• Use the hydraulic oil recommended by the Manufacturer.
2.4
SECTION 2