8
Rosco Maximizer 3B Asphalt Distributor
8-9
Troubleshooting
SYMPTOM
CAUSE
REMEDY
Spraybar sprays streaks
before coming on full
Spraybar not heated properly
Circulate asphalt in spraybar for several
minutes
Asphalt pump not at correct speed
Check flow and speed calibration factors and
adjust if necessary, see
.
Ground speed sensor not working
properly
Faulty wiring
Check GPS or Radar Horn wiring. Check
Controller wiring
Hydrostatic pump malfunction
Table 8-2. Asphalt Application
and
Truck transmission in too high gear Use lower truck gear
Spraybar lowers
excessively.
NOTE: Normal lowering
may be as much as 2 inches
per hours.
Internal leakage in the hydraulic
cylinders or the valves. To check,
raise the base end of the cylinders
and open the rod end. If the bar
doesn’t settle, the problem is in the
valves. If the bar does settle on the
cylinders, repeat the check to see
which cylinder is the problem.
Repack the cylinder or replace the valve
section
Spray valve (individual)
staying ON or not fully
closing
Debris in spray valve
Open spray valve, remove nozzle and clear
debris with wire hook
Actuator handle on spray valve not
correctly aligned with spray valve
body
Use Valve Alignment Wrench to align actuator
with valve body, (see
Spray valve (individual)
staying closed or not fully
open
Actuator handle on spray valve not
correctly aligned with valve
Use Valve Alignment Wrench to align actuator
with valve body, (see
Table 8-6. Spraybar and Valves
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Содержание Maximizer 3B
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