Trailer Support Operation - PRONAR T900 Operator's Manual

SECTION 4
Disconnect hydraulic brake system conduit (applies to trailer version with
hydraulic brake system).
Protect conduit ends with covers. Place conduit plugs in appropriate conduit
hanger sockets.
Unlock and disconnect the drawbar hitching eye and disconnect the steering
system control strings from the tractor hitch and drive the tractor away.
DANGER
Exercise caution when unhitching the trailer from the tractor. Ensure good visibility.
Unless it is necessary, do not go between tractor and trailer.
Before disconnecting conduits and drawbar eye, close tractor cab and secure it against
access by unauthorised persons. Turn off tractor engine.

4.3.1 TRAILER SUPPORT OPERATION

Proper height of the drawbar eye in relation to the tractor hitch is set using the support with
mechanical gear - figure (4.1).
Position (C) is used for fast rising and lowering the support foot in order to reduce the
distance between the support foot and the ground. Position (B) is used for lowering and rising
the drawbar of unloaded trailer. In position (B), the support foot (2) moves slowly and a large
force is not required to raise the machine drawbar.
Raising the support
Remove safety pin (5).
Move support crank (3) from neutral position (A) to position (B).
Turn the crank in proper direction in order to raise the support foot (2)
maximally upwards.
Install securing pin.
Set the crank in neutral position (A).
Lowering the support
Remove safety pin.
Move crank (3) to position (B) or (C).
4.9
Pronar T900