LeeBoy 8520C - Hopper and Conveyor Operation; Hopper Wings Operation and Lock Valves; Hopper Control Switches

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LeeBoy 8520C Conveyor Paver 4-29
Operation
3
2
1
1
Figure 4-57. Hopper
1 - Hopper Wings
2 - Augers
3 - Conveyors
Hopper WingsHopper Wings
The hopper wings are hydraulically opened so the
hopper can be lled with paving material. (Figure 4-57)
Conveyors in the bottom of the hopper move the asphalt
back to the auger, where the mix ows through the
Under Auger Material Cut-Offs to the screed.
The 8520C paver offers a unique feature for paving
professionals. The operator can also raise each wing
individually while paving. This feature gives you the
ability to pave very close to walls, fences, road barriers,
buildings or other obstacles with ease.
Ensure no people, equipment or other
obstacles are in or near the hopper when raising or
lowering the hopper wings to prevent injury or
damage to the paver.
DO NOT fold in the hopper wings when
the hopper is full of asphalt. DO NOT fold in the
hopper until the material truck has moved completely
away from the paver. Never raise the conveyor bed
with asphalt in the hopper.
Ensure the hopper cylinder valves are
unlocked before extending or retracting the hopper
wings.
Hopper Lock ValvesHopper Lock Valves
The hopper cylinder valves (one on each side) can be
used to lock the hopper wings when they are open or
closed. (Figure 4-58) Be sure to unlock the hopper
valves before operation!
• Turn the valve counterclockwise to unlock the hopper
wings.
• Turn the valve clockwise to lock the hopper wings.
Hopper Cylinder
Lock Valve
®
Figure 4-58. Hopper Cylinder Lock Valve
NOTE: Be sure the hopper wings (or wing if using left
or right hopper wing) are completely extend-
ed before receiving paving material from the
truck.
To operate the hopper wings:
1. On the main control panel, use the Hopper Wing
Select switch to operate either both hopper wings
or the left or right hopper wing. (Figure 4-59)
Hopper
Wing
Select
Hopper In/Out
Figure 4-59. Hopper Switches
2. Push the hopper wings switch to OUT on the
operator control panel to fold out hopper wing(s).
3. Push the hopper wings switch to IN to close the
hopper wing(s).