Dynapac F2500C - Page 109

D 10 21
Item Designation Brief description
33
Screed stop (float-
ing position OFF) /
Lower screed +
floating position
Detent switch function:
- Upper switch position:
Screed stop (floating position OFF): Screed is hy-
draulically blocked in position.
- Lower switch position:
Lower screed + floating position: Screed is lowered
and held in the floating position when the drive lever
is swivelled out.
A
To prevent the screed from lowering during an interme-
diate stop (drive lever in centre position), the screed is
hydraulically held in position via relief pressure and the
counter pressure of the material.
m
Check whether the screed transport safeguard is inserted!
f
On actuation, heed danger zones of moving parts of
the vehicle!
34
Raise / lower
screed
Pushbutton function:
- Upper switch position:
Lift the screed.
m
Switch (33) must be deactivated for this function, as the
screed otherwise lowers again!
- Lower switch position:
Lower screed.
m
Check whether the screed transport safeguard is inserted!
f
On actuation, heed danger zones of moving parts of
the vehicle!
35
Screed charging/
relieving device
Detent switch function:
- Upper switch position:
Screed relieving: For hydraulically relieving the
screed to influence the traction force and compaction.
- Switch position, central:
Function OFF.
- Lower switch position:
Screed charging: For hydraulically charging the
screed to influence the traction force and compaction.
A
The relevant pressure control valve can be used to set
the level of charging/relieving.