Prepare A Trailer For First Hitching To Tractor - PRONAR T683 Operator's Manual

SECTION 4

4.1.2 PREPARE A TRAILER FOR FIRST HITCHING TO TRACTOR

Preparation
Check all the trailer's lubrication points, lubricate the machine as needed
according to recommendations provided in section 5,
Check if the nuts and bolts fixing the wheels are properly tightened.
Drain air tank of the braking system.
Ensure that pneumatic, hydraulic and electric connections in agricultural
tractor are according to the requirements, if not the trailer should not be
hitched to the tractor.
Adjust the height of the drawbar or position of upper transport hitch. Check
tightening of bolts securing drawbar hitch.
Test drive
If all the above checks have been performed and there is no doubt as to the trailer's good
technical condition, it can be connected to tractor. Start the tractor, check all systems and
conduct test run of trailer without load (no load in load box). It is recommended that the
inspection is conducted by two people, one of which should always remain in the tractor cab.
Test start should be conducted according to the sequence shown below.
Connect the trailer to appropriate hitch on agricultural tractor.
Connect conduits of braking, electrical and hydraulic systems.
Raise support to transport position.
Switch on individual lights, check correct operation of electrical system.
If the trailer is equipped with hydraulic braking system or with
combined braking system (hydraulic-pneumatic braking system),
check whether the tractor is equipped with a 3-pin 12V electric socket
for connecting the brake solenoid valve. Otherwise, install in the
tractor the socket delivered additionally in the standard equipment of
the trailer.
A detailed description can be found in section 5.
4.3
Pronar T683