LeeBoy 8510E - Conveyors; Under Auger Material Cut-Offs

4
LeeBoy 8510E Conveyor Paver 4-25
Operation
Under Auger Material Cut-Offs
The Under Auger Material Cut-Offs are another
important function of the paver. The cut-offs are used
primarily to control the ow of asphalt to the screed
and hydraulic screed extensions. The cut-offs enable
varying paving widths as narrow as one inch (30.5 cm)
and as wide as 15 feet (4.6 m), depending upon the
screed option.
Cut-offs can be used to limit material ow when making
narrow passes at the beginning and ending of each
pass or pull. Proper use of the cut-offs minimizes
clean-up at the end of pulls. (Figure 4-41)
• The right and left cut-off levers on the hydraulic
controls open and close the cut-off gates. (Pages
3-8 and 3-9)
• Holding the lever in the OPEN positions increases
asphalt ow to the screed. Holding the lever in the
CLOSED position decreases asphalt ow to the
screed.
Auger
Under
Auger
Material
Cut-O
Figure 4-41. Under Auger Material Cut-Offs
NEVER back up with the cut-offs
open. The cut-offs are designed to break away from
cylinders when hitting a manhole or other object
when moving forward, but not in reverse.
Conveyors
The LeeBoy Model 8510E Conveyor Paver is equipped
with two automatic conveyors that deliver asphalt evenly
to produce a smooth asphalt mat. (Figure 4-40)
The conveyor is a very important part of the paver that
moves material from the hopper back to the auger
and out of the cut-off gates to the screed. Pay close
attention to integrating its operation into the total
operation of the paver.
When operating the conveyor:
• Spray down the conveyor drive chains with cleaning
solvent or release agent several times during the work
day for optimum performance.
• Select AUTO or MANUAL mode for the left or right
(or both) conveyor switch(es) on the control panel.
(Pages 3-6 and 3-7)
• If the conveyors are running while the Under Auger
Material Cut-Offs are closed, there will be spillage,
which is normal. To help prevent this spillage, work
conveyors manually when loading hopper and not
paving.
• Irregular movement of the conveyor indicates that the
conveyor chains need adjustment.
• NOTE: Check conveyor chain adjustment every 100
hours. (Section 5, Pages 5-8)
Never leave the paver unattended
while the conveyor is operating. Asphalt in the
conveyors can ll tracks and cause damage to the
machine.
To prevent ight chains from sticking
inside the conveyor pans, lubricate them daily for
maximum operational efciency.
1
2
Figure 4-40. Conveyor Chains and Paddles
1 - Conveyor Chains
2 - Conveyor Paddles