PRONAR T669/1, Руководство оператора, Страница: 72 / 137

Pronar T669/1 SECTION 4
4.6
Using the support set the drawbar eye at such a height so it is possible to
hitch the machines.
Operate the selective control valve on the tractor to raise or lower the
drawbar eye, until the correct height is achieved
Reverse tractor, hitch trailer, check coupling lock protecting machine against
accidental unhitching.
If the agricultural tractor is equipped with an automatic coupler, ensure
that the hitching operation is completed and that drawbar eye is
secured.
When the trailer is coupled, the support must be folded as close as
possible to the drawbar by the maximum extension of the hydraulic
cylinder piston rod (2) - Figure (4.1).
When the support is completely withdrawn, set selective control valve
lever in tractor to "neutral" position.
Turn off tractor engine. Ensure that unauthorised persons do not have access
to the tractor cab.
Connect pneumatic system lines (applies to two line systems):
Connect pneumatic conduit marked yellow with yellow socket in
tractor.
Connect pneumatic line marked red with red socket in tractor.
Connect pneumatic system lines (applies to single line systems):
Connect pneumatic conduit marked black with black socket in tractor.
Connect hydraulic brake system (applies to trailer version with hydraulic
brake).
Hydraulic brake system conduit is marked with information decal (13)
– table (2.1).
Connect hydraulic tipping system line.
Hydraulic brake system line is marked with information decal (14) –
table (2.1).