4 Operation
Emergency operation
Securing the load support
In order to secure the load sup
port against
lowering during maintenance
work, the
lowering movement can be lock
ed by closing
the shut-off valves. A notch i
n the block
section indicates the valve p
osition.
• The notch is pointing in the direction of the
connected line = flow open
• The notch is at a right angle to the direction
of the connected line = flow blocked
DANGER
Risk from lowering of the lift mast or driver's cab
– The pressure in the hydraulic system must be
released before any work is carried out on it. The
load support must also be lowered to the ground.
– Before a person can go underneath the raised
driver's cab, an additional mechanical safety
device must be installed. For example, fit a
suitably strong brace around the bridge pieces
on parts of the lift mast or place a suitably strong
jack stand underneath the driver’s cab.
– Lock all existing shut-off valves. There is a valve
for each main lift cylinder (1), one for each free
lift cylinder* (2) and two additional valves for the
hydraulic lines for the attachment (3).
*Option
Emergency operation
If the entire truck control unit or part of it
fails, the industrial truck can be moved out
of the working area by means of the relevant
emergency operation mechanism.
WARNING
– Only tow at cree
p speed
– There must alwa
ys be an operator in the indust-
rial truck tha
t is being towed.
– There must not
be anyone in the danger area of
the trailer tra
in.
– In order to prev
ent strong lateral forces and
therefore the
risk of tipping, always leave plenty
of space whe
n driving round corners.
– The vehicl
e used for towing must always be
driven c
arefully and be able to brake gently and
in good ti
me.
74 5
231 804 2502 EN - 11/2017
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