Blocking Cancellation - Zetor Proxima Plus Series Operator's Manual

BLOCKING CANCELLATION

When you switch on the electric installa-
tion with the key of the switching box (I),
the lifting device remains blocked elec-
tronically - the lifting and lowering func-
tion is deactivated; on the EHR control
panel the diagnostic LED (7) and the vi-
bration dampening LED (11) shortly light
up - the system self-test is in progress.
The lifting LED (8) and the lowering LED
(9) are off. After a short time permanent
illumination of the diagnostic LED (7) in-
dicates the state of EHR blocking.
If the diagnostic LED (7) is permanently
illuminated, the control circuits are dis-
connected.
ELECTRO-HYDRAULIC SYSTEM
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The engine can only be started
if the engine (1) is in position
(b).
The EHR electro-hydraulic system is only
active when the engine is started.
Activation of the EHR system is only
possible when the lubrication indicator
has gone off.
The blocking can only be cancelled (sys-
tem activated) with the engine running by
moving the lifting lever (1) to position (a)
- short-time switching is sufficient.
By moving the lever (1) to position (c)
you will bring the three-point hitch to the
position corresponding to the element
setting, i.e. the current position of con-
trols (4), (5), (6).
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124
After the activation of the system
EHR first for safety reasons limits
the lifting speed of the hydraulic
arms.
When the hydraulic arms first
reach the selected position, this
safety limitation is cancelled and
then the lifting speed of the hy-
draulic arms is normal.