LeeBoy 8608 - Setting the Crown

8. If paving a width of eight (8) feet or less:
• Ensure the sonic auger sensor is connected.
(Page 4-32)
• Turn the left and/or right auger button to manual
and set the desired auger speed OR set the
button to AUTO (to control the material height at
the end gate).
• When the material starts moving into the
sonic range, the sonic auger will automatically
regulate auger operation.
9. Begin paving, move slowly at rst to adjust the
screed if needed.
• Use the hydraulic tow points, grade/slope
functions, and/or ight screws as needed while
paving.
• The procedures for setting the crown and
making AOA (Angle of Attack) adjustments
for asphalt mat texture are described on the
following two pages.
10. Make a paving pass until the asphalt level in the
hopper is low.
NOTE: To prevent excessive handwork, set the left
and right conveyor switches to the OFF
position and set both cut-off switches to the
CLOSE position about three feet from the
end of the pull.
11. Return paver back to starting position to begin the
next pull.
Setting the CrownSetting the Crown
The screed can also be set to control the pavement
valley, or crown. A pavement crown is the elevation of
the middle in relation to the edges, and insures proper
drainage of the pavement.
NOTE: Maximum crown is two inches.
To adjust the crown:
1. Loosen the lock-down bolts in slotted bars before
adjusting crown and valley mechanism. (Figure
4-74)
Figure 4-74. Loosen Lock-Down Bolts
2. Use the crown handle adjuster for setting positive or
negative crown: (Figure 4-75)
Gauge
Crown
Handle
Adjuster
Figure 4-75. Crown Adjustment
Operation
8608 Commercial Paver4-36