44
LeeBoy 8520C Conveyor Paver 4-43
Operation
15. Repeat Steps 5 and 6 to set.
16. Turn the Mode Select Knob until the number 14
appears in the Mode Select display window. If the
tow arm cylinder does not begin to move, continue
turning the knob until it does.
NOTE: This is the elevation setting, which varies from
paver to paver. Make a note of this number
on the Notes page provided in this manual for
future reference.
Setting this value too high will result in
overshooting the grade.
17. Repeat Steps 5 and 6 to set.
18. Turn the Mode Select Knob until the number 15
appears in the Mode Select display window.
19. Press the Set button. You are now ready to pave.
Horizontal Flight ScrewsHorizontal Flight Screws
Some screed operators prefer horizontal ight screws.
(Figure 4-92) This option is not an add-on option--it
must be ordered when purchased.
Figure 4-92. Horizontal Flight Screw
Slope MeterSlope Meter
The slope meter is attached to the screed (beside the
crown adjuster lever). The slope meter is used for
slope and crown road construction, and continuously
indicates the slope of the ground, or “percent of grade.”
(Figure 4-93)
Indicator Ball
Figure 4-93. Slope Meter
The slope meter is calibrated to read from .00 to .12
(0 - 12 percent) and works similar to a level tool. Just
like a level tool, it contains a ball bearing suspended in
oil that gravity always keeps at the lowest point of the
meter, indicating the slope as you pave. Fluid in the vial
is heavy and helps keep the indicator ball steady even
with vibration, yet it still reacts quick enough to keep you
accurate. While the slope meter is sturdy and functions
regardless of weather conditions, take care not to break
the glass tube. Keep the slope meter clean for optimum
viewing at a glance.
If you selected the slope meter option when your
ordered your paver, it is already mounted onto the
screed at our manufacturing facility. Otherwise, you will
need to mount the slope meter onto the screed.
NOTE: The slope meter is a precision instrument
and must be installed correctly for accurate read-
ings. Install the slope meter onto the metal block
(if equipped), or a solid, straight, at area on the
main screed frame that will not twist or strain during
operation. It cannot be emphasized enough that the
paver needs to be on level ground for correct instal-
lation and operation.
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