13
Machine connection to tractor
Tow-bar alternatives and bar connections
Standard tow-bar
The JC seed drill is usually attached to a tractor tow hitch, agricultural towing device or to the towing point of
an optional roller (middle wheel packer).
The bottom standard tow-bar also comes with a tow-triangle, with which the JC can be towed from a tractor
3-point lift device.
WARNING!
When using a tow-triangle connection, special attention must be paid to tractor front
end weighting in order to maintain controllability. When the JC is connected to a tractor
tow-bar with a tow-triangle, the machine containers must be empty during transport. In
addition, ensure that the steering front axle bears at least 20% of the tractor’s mass
(use additional weights), and that the tractor’s right and left side brakes are
interconnected.
WARNING!
The tow-triangle must be connected in as vertical a position as possible. Adjust to the
correct position using the tractor tow-bar. Never raise or lower the tow-triangle to an
unnecessary height. Ensure that the tow-bar angle is not excessive when viewed from
side-on. The maximum permissible angle to the horizontal is +/- 9
°
. Excessively sharp
angles can destroy the tow-triangle or tow-link.
Multi-function tow-bar
If a multi-function tow-bar is selected for the JC, the machine can usually be connected as normal to a tractor
tow-hook or agricultural towing device (with the bar installed as a lower tow-bar, see Fig. 10,11) or also to
higher-mounted tow-points. A bar set as an upper tow-bar is depicted in Figures 10 and 11. The upper tow-
bar can for example be connected to the towing point of a Tume CultiPack intermediate cultivator.
WARNING!
The upper tow-bar must never be connected to a tractor push-bar bracket or other such
tow-point that is located above the rear axle of the tractor.
When using the upper tow-bar with a milling cutter or other lifting device fitting cutter,
it must be ensured that the tractor remains controllable even when the cutter is lifted
such that it is supported by the lifting device. In road traffic, the steering front axle must
for safety reasons have an adequate weighting of at least 20% of the tractor’s total
mass. Use additional weights if needed. Move the machine as necessary only with
empty containers!
WARNING!
Check all tow-bar parts for wear and other problems regularly! Pay special attention to
the tow-bar link and tow-bar connection pin and overall wear. Damaged or dangerously
worn parts must be replaced or repaired without delay.
Length adjustment ranges of push-bars supplied with tow-bars
Caution! Follow the instructions provided for length adjustment ranges! Incorrect adjustment can
lead to serious personal injury or equipment damage.
Fig. 12 shows the length adjustment range of a mechanical push-bar provided as standard equipment. Note,
that the area is not symmetrical. Pay separate attention to the measurement adjustment of each end!
