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Printed in U.S.A
67
918215/CP0407
1448 PLUS
TROUBLESHOOTING
MATERIAL-DELIVERY, COMPACTION-RELATED MAT PROBLEMS
Mat texture not uniform
See Causes 1, 2, 4, 7-9, 12
Screed marks
See Cause 3
Screed not responding to
correction
See Causes 2-4
Poor pre-compaction
See Cause 2, 4
Poor longitudinal joint
13. Improper joint overlap
Limit overlap to 2” maximum
Poor transverse joint
See Causes 3, 4
14. Incorrect nulling of screed
Increase “pitch” of screed before starting
Problem
Possible Cause
Corrective Action
Problem
Possible Cause
Corrective Action
Wavy surface
(short waves - ripples)
1. Improper base preparation
Review base installation
2. Improper rolling operation
Decrease speed
3. Improper mix design (aggregate)
4. Improper mix design (asphalt)
5. Mix segregation
Asphalt plant mixing too long
6. Variation of mix temperature
Asphalt plant burners not heating
consistently
Wavy surface (long waves)
See Causes 1, 5, 6
7. Trucks bumping finisher
Stop truck short of paver and drive paver
to truck
8. Truck holding brakes
Driver must apply brakes only as required
for the truck to stay “in Paver”
9. Reversing or turning rollers too quickly Cycle must be slow but deliberate
10. Parking roller on hot mat
Move to cooler surface before parking
Park at 45
o
angle
Tearing of mat (full width)
See Causes 3-7
11. Improper mat thickness
Check that the mat thickness is twice the
size of the largest aggregate
12. Cold mix temperature
Check with asphalt facility for hotter
asphalt mix
Mat texture
(center or outside streaks)
See Cause 12
Mat texture (non uniform)
See Causes 1, 3-6, 11, 12
Screed marks
See Causes 7, 8
Screed not responding to
correction
See Causes 6, 11, 12
Auger shadows
See Causes 3-4, 5
Poor pre-compaction
See Causes 1, 11, 12
Poor longitudinal or
transverse joint
See Causes 2, 12
Summary of Contents for 1448 Plus
Page 4: ...NOTES Courtesy of Machine Market...
Page 12: ...918215 CP0407 8 Printed in U S A INTRODUCTION 1448 PLUS NOTES Courtesy of Machine Market...
Page 16: ...918215 CP0407 12 Printed in U S A CHECKLISTS 1448 PLUS NOTES Courtesy of Machine Market...
Page 18: ...918215 CP0407 14 Printed in U S A CHECKLISTS 1448 PLUS NOTES Courtesy of Machine Market...
Page 25: ...Printed in U S A 21 918215 CP0407 SAFETY Continued L65924 137628 Courtesy of Machine Market...
Page 26: ...918215 CP0407 22 Printed in U S A SAFETY Continued NOTES Courtesy of Machine Market...
Page 56: ...918215 CP0407 52 Printed in U S A SCHEMATICS 1448 PLUS NOTES Courtesy of Machine Market...
Page 75: ...Printed in U S A 71 918215 CP0407 1448 PLUS TROUBLESHOOTING NOTES Courtesy of Machine Market...
Page 76: ...918215 CP0407 72 Printed in U S A TROUBLESHOOTING 1448 PLUS Courtesy of Machine Market...
Page 80: ...918215 CP0407 76 Printed in U S A DECAL LOCATIONS 1448 PLUS NOTES Courtesy of Machine Market...
Page 82: ...918215 CP0407 78 Printed in U S A INDEX 1448 PLUS NOTES Courtesy of Machine Market...