D 24
D_E3
4_VB340_
05.
08_G
B.
fm
24-
2
6
-
01.
01.
07
5
Malfunctions
5.1
Problems during paving
Problem
Cause
Wavy surface
(“short waves”)
- change in the material temperature, demixing
- wrong material composition
- incorrect operation of the roller
- incorrectly prepared foundation
- long standstill times between loads
- grade control reference line is not suitable
- grade control jumps to the reference line
- grade control toggles between up and down
(inertia setting is too high)
- bottom plates of the screed are loose
- bottom plates of the screed are warped or not uniformly
worn
- Screed is not operated in the float position
- too much play in the mechanical screed link/suspension
- paver finisher speed is too high
- augers are overloaded
- changing material pressure against the screed
Wavy surface
(“long waves”)
- change in the material temperature
- demixing
- roller has stopped on the hot material
- roller has turned or roller speed has been changed too fast
- incorrect operation of the roller
- incorrectly prepared foundation
- truck brake is applied too tight
- long standstill times between loads
- grade control reference line is not suitable
- incorrect installation of the grade control
- limit switch is not correctly set
- screed is empty
- screed has not been switched to the floating position
- too much play in the mechanical screed link
- auger is set too deep
- auger is overloaded
- changing material pressure against the screed
Cracks in the lay-
er (over the en-
tire width)
- material temperature is too low
- change in the material temperature
- moisture on the foundation
- demixing
- wrong material composition
- wrong layer height for maximum grain size
- cold screed
- bottom plates of the screed are worn or warped
- paver finisher speed is too high
Summary of Contents for Svedala Demag EB 34 Series
Page 2: ...VALUE QUALITY THE ORIGINAL Your Authorized Dynapac Dealer...
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Page 87: ...F 17 F_EB34_VB340_05 08_GB fm 17 18 11 Test certificates 11 1 Electric screed heating system...
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