7
Operation
7.3
Operation of the landing gear
The following chapter explains operation of the Modul E-Drive
landing gear in more detail.
ADVICE!
It is not possible to move loads using the electric drive. It
is only used for extending the landing gears down to the
ground and for retracting it again. Height differences
must be compensated using the air suspension of the
vehicle or by means of the crank in low gear.
WARNING!
Before the electric drive is taken into operation, it is
necessary to ensure that there is no driving connection
between the crank and the connection shaft, i.e. the
crank is folded down and must be inserted in the parked
position.
There is a danger of accident if the crank has a dri-
ving connection to the landing gear and is spun
round due to the rotating movement of the electric
landing gear drive!
Before extending or retracting the landing gear, the
driver must ensure that there is nobody in the dan-
ger area.
Before unhitching, look and check that the landing
gear has reached the ground.
Electrical movement can be carried out either in automatic mode
or in momentary-contact mode.
Electrical movement of the landing gear in automatic mode
Activate the system by pressing both control elements simul-
taneously for two seconds. Both control elements flash at the
same time when the control unit is activated.
Select the travel direction by pressing a control element for
the required travel direction (press the button for about 1
second until the motor starts, see Fig. E-Drive/009, page 63).
The landing gears are moved in both directions (retract-
ing/extending) in automatic mode with self-holding until the
maximum permitted motor current is exceeded. This is gener-
ally the case whenever the landing gear makes contact with
the ground or is fully retracted.
When the limit position is reached, the motor is briefly run
opposite to the previous movement direction so as to avoid
wind-up in the landing gear.
Running of the motor can be stopped immediately by press-
ing any button.
After the motor stops running, it can be started again in
either direction within ten seconds. Otherwise, the system
will have to be reactivated again as described previously by
pressing the control elements simultaneously.
WARNING!
Before the working procedure, make sure that there is
no one in the danger area. The operator is only allowed
to move away from the visible area when the supports
have made contact with the ground.
EN
Modul E-Drive
MUB 006 001 M01
(REV-D)
07-2020
27
