LeeBoy 8515D - Heating the Screed

4-20 LeeBoy 8515D Conveyor Paver
Operation
Never open a valve to a burner unless
ame is present. A buildup of unburned gas could
result in a gas explosion.
Propane gas used to heat the screed
is volatile and combustible. Use extreme care to
prevent burns or other injury.
To light the burners:
1. Ensure ALL propane heat valves are closed by
turning valves clockwise (propane tank, main burner
valves, main ignitor valve, extension ignitor valves).
(Figures 4-32 and 4-34)
2. Turn the propane tank Open/Close valve
counterclockwise to open the propane gas ow.
(Figure 4-33)
1
2
3
Figure 4-33. Propane Tank With Regulator
1 - Pressure Regulator Valve
2 - Pressure Regulator Gauge
3 - Open/Close Valve
3. Remove the main ignitor wand from its cradle
and turn its valve counterclockwise to the OPEN
position, then light the ignitor end using a torch
striker. (Figure 4-34)
NEVER use a match or other source of
ame to light the ignitor for the burner.
4. Holding the lit ignitor wand in one hand beside
the burner you are going to light, turn on the main
burner valve and light the that burner just below the
valve, then repeat with the other side. (Figure 4-34)
Heating the Screed
Heating the screed helps prevent hot mix from sticking
to the cold screed plate and produces a smooth, tight
mat surface. This should be performed before paving
and if the paver is idle long enough for the screed to
cool between loads.
Allow the screed (and screed extension) to heat 15
minutes before beginning to pave.
NOTE: Lower the screed two inches off the ground
while heating to prevent cold air and wind
from affecting the heating process.
NOTE: You can set the screed directly onto a fresh
mat of hot asphalt while running the heating
system, allowing the heat of the asphalt to
help heat the screed plate.
Overheating the screed can warp the
screed plate and possibly cause damage. If screed
extensions lock, allow the machine to cool before
attempting to extend or retract. Replace a warped
screed plate immediately.
The standard LeeBoy Model 8515D Conveyor Paver is
equipped with two propane burners on the main screed
and one burner on each screed extension. An electric
heat option is also available. (Page 4-21) An optional
815HD (Heavy Duty) screed features additonal heating
elements and heating options (Page 4-35).
Propane Burner Ignition
IT IS IMPORTANT TO OPEN PROPANE VALVES IN
THE ORDER SHOWN BELOW. (Figures 4-32 and
4-34)
1
2 3
4
5
Figure 4-32. Propane Valve Order