PRONAR T663/4 Operator's Manual page 76

Pronar T663/4 T663/4 SILO
Hitching the second trailer
Remove cotter pin securing pin and take out hitch pin (2) in the first trailer -
figure (4.2).
Adjust the height of the drawbar of the second trailer in such a manner to
enable coupling the machines.
Reversing tractor, drive the rear hitch of the first trailer onto the drawbar of the
second trailer.
Insert drawbar pin and securing cotter pin.
Connect conduits of pneumatic, hydraulic and electrical systems according to
instructions contained in section (4.2)
Unhitching the second trailer
Immobilise tractor and trailers with parking brake.
Turn off tractor engine. Ensure that unauthorised persons do not have access
to the tractor cab.
Disconnect conduits of pneumatic, hydraulic and electrical systems according
to instructions contained in section (4.2).
Unlock the pin of the hitch of the first trailer. Remove the pin and drive tractor
away.
DANGER
The person assisting in coupling the second trailer must stand in such a place as to be
visible to the tractor driver at all times. Be especially careful and keep safe distance from
danger zones.
ATTENTION
Do NOT hitch a second trailer constructed on any chassis except dual axle chassis.
4.10
SECTION 4