D 4.6 33
D_4.6_01_GB.fm 33-38
Malfunction Cause: Remedy
Hoppers lowers
inadvertently
Control valve is defective Replace
Leaking seals of the
hydraulic cylinder
Replace
Screed cannot be
lifted
Oil pressure too low Increase the oil pressure
Leaking seal Replace
Screed relieving or
charging is switched on
Switch must be in the center
position
Power supply is interrupted
Check fuse and cables; replace
if necessary
Crossbeams cannot
be lifted or lowered
Switch on the remote con-
trol is set to ”auto”
Set the switch to ”manual”
Power supply is interrupted
Check fuse and cables; replace
if necessary
Switch on the operating
panel defective
Replace
Excess pressure valve
defective
Replace
Flow rate regulator defec-
tive
Replace
Seals defective Replace
Crossbeams lower
inadvertently
Control valves defective Replace
Pilot-controlled non-return
valves defective
Replace
Seals defective Replace
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