5-14 LeeBoy 8520C Conveyor Paver
Maintenance
5. Remove the safety prop then lower the conveyor
bed to make adjustment.
6. Using a ratchet, alternate turning each adjustment
bolt 1/4 turn at the front of the paver (two for each
conveyor). (Figure 5-12)
• Turn the adjustment bolts clockwise to tighten
the chains or counterclockwise to loosen the
chains.
• Alternate between the left and right adjuster to
ensure the idler is pulled forward evenly. It is
critical that the idler remains parallel with the
front of the deck.
7. Measure the slack and continue alternating the
tightening, if needed, until the ight chains are
properly adjusted to 2 - 2-1/2 inches of slack.
Figure 5-12. Flight Chain Adjustment
DO NOT leave ratchet inserted into the
adjuster holes during conveyor operation.
8. Start the engine to operate the conveyor, checking
that the conveyor chains are not binding, making
noise or trying to climb the front sprockets. Verify
the ight bars are tracking straight, then turn off
conveyor.
9. Raise the conveyor again and insert safety prop.
10. Tighten the two idler mount bolts on the left and right
side (4 bolts total) under the conveyor bed. (Figure
5-11)
11. Clean asphalt under the deck and spray down with
citrus throughout including up inside the conveyor
pans. Operate the conveyor again, spraying the
chains, bars and deck with citrus release agent.
12. Start the engine to lower the conveyor.
13. Push hopper wings back into position and reinstall
the four wing bolts on each side.
• Idler bearing housing brackets are not parallel to each
other and the conveyor bed:
• Check the idler bracket. If it appears twisted or
misaligned, slide shaft 1-1/2 inches through the
bearing inside diameter. If the centers are too
far off (more than 1/4 inch), this is why the chain
is climbing the sprocket.
• If excessive, replace chain or sprocket.
You will need a ratchet, extension, a 15/16 socket, and
the conveyor tool included with your paver to make the
adjustment. DO NOT use an impact wrench!
Use the following procedure to adjust the ight chains:
1. Use the conveyor tool to remove the four wing bolts
on each side, then fold out both hopper wings.
(Steps 2-3 on Page 5-5)
2. Use a pair of pliers and minimal force to pick up
the chain near the center of the conveyor bed on
each side, then measure and compare the slack
observed. (Figure 5-10)
Figure 5-10. Compare Slack Observed
3. Start the engine to raise the conveyor bed, then
insert safety prop. (Steps 2-3 on Page 5-5) Turn
off engine.
4. Loosen the two idler mount bolts on the left or right
conveyor (or both if adjusting both conveyors),
using an allen wrench to hold the bolt on top while
loosening the 4 nuts underneath. (Figure 5-11)
Figure 5-11. Idler Mount Bolts
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