D 4.6 32
D_4.6_01_GB.fm 32-38
2.5 Malfunctions on the paver finisher or screed
Malfunction Cause: Remedy
At the diesel engine Diverse
See operating instructions for
the engine
Diesel engine does
not start
Batteries empty
See ”External starting”
(start assistance)
Diverse see ”Towing”
Tamper or vibration
does not operate
Tamper is obstructed by
cold bitumen
Properly heat the screed
Hydraulic oil level in the
tank is too low
Top up the oil
Pressure limiting valve is
defective
Replace the valve; if necessary,
repair and adjust the valve
Leak in the suction line of
the pump
Seal or replace the connections
Tighten or replace the hose
clamps
Oil filter is soiled
Clean the filter; if necessary,
replace the filter
Conveyor or augers
run too slowly
Hydraulic oil level in the
tank is too low.
Top up the oil
Power supply is interrupted
Check fuses and cables; replace
if necessary
Switch is defective Replace the switch
One of the pressure limit-
ing valves is defective
Repair or exchange the valves
Pump shaft broken Replace the pump
Limit switch does not switch
or regulate correctly
Check the switch; replace and
adjust the switch if necessary
Pump is defective
Check the high pressure filter for
dirt particles; replace if neces-
sary
Oil filter is soiled Replace the filter
Hopper cannot be
swung open
Engine speed is too low Increase the speed
Hydraulic oil level is too low Top up the oil
Leak in the suction line Tighten the connections
Flow rate regulator
defective
Replace
Leaking seals of the
hydraulic cylinder
Replace
Control valve is defective Replace
Power supply interrupted
Check fuse and cables; replace
if necessary
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