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Section 4
4.17
HYDRAULIC STEERING SYSTEM OPERATION
1
Figure 4.13
Hydraulic hand pump
(1) oil tank, (2) hand pump lever, (3) hydraulic valve, (4) pressure gauge, (A) open position, (B) closed
position
In order to ensure proper operation of the
hydraulic steering system and safe use
of the trailer, suitable and certified tractor
hitches according to ISO 26402 should be
used.
During the first hitching of the trailer to the
tractor, check correctness of operation of
the wheel steering system. If system oper-
ation is found to be incorrect, follow these
steps:
• Hitch trailer to tractor using drawbar
eye and ball control hitch and then,
secure the drawbar,
• open two valves (3) located near the
4.34
PRONAR T700M/1
4
2
• drive the tractor with the trailer at-
• fill the system by means of the
• do not add oil when the above-men-
• close all valves (3) and set the pump
• drive the tractor with the trailer
A
hand pump - figure (4.13),
tached at such a distance as to po-
sition the trailer wheels for forward
driving,
pump using hand lever (2) until
each pressure gauge (4) indicates
pressure of 80 bar,
tioned pressure level is achieved,
lever (2) aside,
Correct use
3
B
623-H.10-1
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