PRONAR T286 Operator's Manual page 85

SECTION 4
Set the hydraulic section in the tractor, to which the support is connected, to
"floating" position in order to reduce pressure in hydraulic conduits.
IMPORTANT!
The trailer may not be unhitched from the tractor if the tipping frame or central frame are
not fully retracted and when hydraulic cylinder suspension blocks are extended.
Disconnect the connection lead of the control panel and dismount the panel
from the operator cab.
Turn off tractor engine. Ensure that unauthorised persons do not have access
to the tractor cab.
Disconnect from the tractor the conduits of the turning interlock hydraulic
system, central hydraulic system, drawbar hydraulic system and hydraulic
system of the hydraulic support (option).
Disconnect pneumatic system conduits and electrical leads from the tractor.
Protect conduit ends with caps and place them on the hanger.
Release tractor hitch and disconnect trailer drawbar from tractor hitch and
drive tractor away.
The folding hydraulic support should be folded and locked according
to chapter 4.3.2.
In case of straight or folding hydraulic support, set valve (4) to "O"
position –open – figure (4.2), and control the manifold in the tractor in
order to lower the support.
When the hydraulic support is lowered, set the manifold lever in tractor
to "neutral" position and set the support valve (4) to "Z" position -
closed – figure (4.2).
High pressure will occur at the connector after closing the support
valve and it will be impossible to reconnect the conduit after taking it
out.
4.11
Pronar T286