918215/CP0407
66
Printed in U.S.A
TROUBLESHOOTING
1448 PLUS
GENERAL PAVER PROBLEMS DURING OPERATION
PAVER-RELATED MAT PROBLEMS
Problem
Possible Cause
Corrective Action
Engine operation erratic
See “Engine” on page 65
Paver difficult to steer
(normal lead off to one side
may be as much as 1 to 2 ft.
in 100 ft. of travel under low or
no load conditions)
One forward/reverse lever not fully
engaged
Engage lever
Linkage for dual controls binding
Free up linkage
Tracks not properly aligned
Align tracks
Paver slowing down or exces-
sive power loss (travel speed
is 0-80 FPM)
Engine not running at rated speed
Check fuel filter
Failure of hydraulic system component
(filter, motor, pump, etc.)
See “Hydraulic Pump and Motor System”
on page 69. Disassemble drive valve and
clean load checks.
Hydraulic controls stall too
freely or do not operate under
a load
Hydraulic system leaks
Locate leaks and repair
Repair faulty component
See “Hydraulic Pump and Motor System”
on page 69. Disassemble drive valve and
clean load checks.
Screed not hot enough
Ports at end of screed plugged
Clear ports
Outside air too cold and/or windy
Use propane heater while paving
Problem
Possible Cause
Corrective Action
Wavy surface (ripples)
1. Fluctuating head of materials
Maintain full head of material
2. Finisher speed too fast
Reduce speed with the pump speed
control lever
3. Excessive play in screed’s mechanical
connection
Replace attaching pullarm bolt, one of
two rear bolts attached to screed and
depth adjustment assembly
4. Screed riding on lift cylinder
Lower lift cylinder completely
Wavy surface (long waves)
See Causes 1, 3, 4
5. Overcorrecting thickness control
screws
Make moderate corrections as seldom as
possible
6. Running hopper empty between loads
Stop paver before head of material
reaches screed area
7. Sitting long period between loads
Empty hopper completely if waiting period
lets asphalt cool
Tearing of mat (full width)
See Cause 2
8. Screed plates worn or warped
Replace wear plate
9. Cold screed
Check ports in screed
Tearing of mat (center streak) See Causes 8, 9
10. Too little lead crown in screed
Increase lead crown
Tearing of mat
(outside streak)
See Causes 8, 9
11. Too much lead crown in screed
Decrease lead crown
12. Screed extensions adjusted
incorrectly
Raise extension leading edge
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...
