17 – 8 Repair manual SWE100, 120, 120L, 120S, 140, 140L, 200D © BT
Hydraulic system 6000
Hydraulic calibration
T code Valid from serial no. Date Order no.
841×842×843 6061850- 2012-08-30 258946-120
17.5 Hydraulic calibration
In order to handle the proportional valve’s tolerance a calibration func-
tion can be used. To activate calibration mode, service mode “cal” must
be set at “1” and the truck restarted. When a calibration is carried out
the service key must be connected and maximum rated weight loaded
on the forks.
In calibration mode “strt” will appear on the display pending one of the
two signal buttons being pressed. The calibration starts when one of
the signal buttons is pressed. The lowering valve then opens slowly. As
soon as the operator feels the lowering movement of the forks the sig
-
nal button must be released.Wait until the display “end” appears on the
display and then restart the truck. Service parameter 108 resets auto
-
matically after a calibration has been carried out.
The calibration process affects the following parameters:
• The fork’s maximum lowering speed (parameter 302)
• The proportional valve’s start position (parameter 303)
• The supporting leg’s lowering speed (parameter 304)
• Slow lowering speed (parameter 305)
All parameters can be adjusted manually after a calibration.
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