PRONAR T663/4 Operator's Manual page 72

Pronar T663/4 T663/4 SILO
Turn off tractor engine. Ensure that unauthorised persons do not have access
to the tractor cab.
FIGURE 4.1 Trailer support
(1) support, (2) cylinder, (3) hydraulic conduit, (4) - (5) information decals
Connect pneumatic system conduits (applies to double conduit pneumatic
system):
Connect pneumatic system conduits (applies to single conduit pneumatic
system):
If the agricultural tractor is equipped with an automatic coupler, ensure
that the hitching operation is completed and that drawbar eye is
secured.
Connect pneumatic conduit marked yellow with yellow socket in
tractor.
Connect pneumatic conduit marked red with red socket in tractor.
4.6
SECTION 4