horsch LEEB 12 TD, Operating Instructions Manual, Page: 48 / 181

Shut-off valve (only for
machines with passive
follow-up steering)
A lock valve is installed on the front of the
machine to be able to lock or release the trailing
steering axle.
trailing steering axle lock valve open (field travel)
trailing steering axle lock valve closed (parking position)
WARNING
Danger of accident caused by the machine
tipping over!
¾
The shut-off valve must always be locked
during road travel!
Hydraulics lockout switch
The electric switch on the tractor is used to
switch off all hydraulic functions (folding the
folding boom, steering axle active). The switch
must be operated by the driver.
However, the spraying pump remains active,
stirring is possible.
During road travel the switch must always be
set to OFF so that steering is locked.
Switch for turning the hydraulics on and off
NOTE
If the steering axle is still activated or a folding
process is started with the hydraulics turned off,
an error message is displayed on the terminal.
Refer to the pertaining terminal operating
instructions.
Manual hydraulic operation if steering fails
If the electric switch on the tractor fails, an
option is provided on the hydraulic valve block
at the right machine side under the covering of
reactivating all hydraulic functions manually.
Unscrew the screw on the hydraulic valve block
for this purpose.
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