5
6. CONTROL UNIT OPERATION
6.1. TO RAISE THE LEVELER
1. Park the transport vehicle with an open body in front of
the leveler so that it is positioned squarely against dock
bumpers.
2. Chock the vehicle wheels to prevent accidental depar-
ture.
3. Turn the main power switch ON to operate the leveler.
4. Make sure the power led on the control unit is lit, then
press the leveler control button.
5. Keep the button pressed until the leveler platform is
fully raised and the lip is extended. Then release the
button and wait till the leveler platform lowers on the
vehicle bed. The lip should have a minimum of 100 mm
overlap on the vehicle bed surface.
WARNING!
Keep the main power switch ON till the platform stops working and returns to the stored position!
CONTROL UNIT OPERA
TION
When loading or unloading is finished resume the stored
position of the dock leveler by pressing and holding the
leveler control button until the lip folds vertically down-
wards. Then release the button and wait till the platform
returns to the stored position. After that turn the main
power switch 0FF.
6.2. TO STORE THE LEVELER
Should any emergency arise halt the dock leveler in place by turning the main power switch OFF.
* Connection scheme refers to DoorHan operators of Shaft series only.
6.3. EMERGENCY STOP
WARNING!
To resume operations turn the main power switch ON and press the leveler RAISE button shortly.
Fig. 5.2. Connection scheme for lip inductive position sensor*
Shaft operator
control post
Lip inductive
position sensor
Shaft operator control board terminals
brown
black
blue
COM
OPEN
STOP
CLOSE
+24V
white
red
yellow
