LeeBoy 5300B - Main Screed Wear Plate

Maintenance
LeeBoy Model 5300B Compact Paver5-38
Main Screed Wear PlateMain Screed Wear Plate
The screed wear plates can wear out over time and
must be replaced if the plate has worn to less than
1/4-inch thick. Poor maintenance, paver cleaning,
asphalt mixes containing hard aggregate and improper
material ow can contribute to excessive wear on the
main screed and extension wear plates. Correct screed
heating also helps prevent excessive material build-up.
An uneven, worn screed plate will produce an inferior
mat.
To replace the main screed wear plate:
1. Retract screed extensions completely.
2. Set the hydraulic tow points to (center).
3. Lower screed onto set-up blocks and null with ight
screws and ensure crown/valley is at 0 (center).
4. You can remove the walkboard if desired, but it isn’t
necessary.
5. Remove bolts, nuts and washers from the center
cover rst, then on each cover and detach. (Figure
5-40)
Main Screed Covers
Figure 5-40. Remove Main Screed Covers
6. Carefully disconnect wiring.
7. Remove both rows of bolts holding the wear plate to
the bottom of the screed. (Figure 5-41)
NOTE: Clamp the center portion of the screed frame
to hold the frame in place before lifting it
from the worn wear plate.
Wear Plate Bolts
Wear Plate
Figure 5-41. Wear Plate Bolts
8. Raise the screed completely to slide the worn wear
plate from under the screed.
9. Clean all material buildup on the screed frame.
10. Set new wear plate level on three blocks, placing
one block in the center and one at each end.
11. Lower the screed frame down onto the new wear
plate.
12. Install center and side bolts rst (front and rear)
to hold the new wear plate in place. nstall the
remainder of the front bolts, starting inside and
moving outward, rotating from left to right to keep
the screed relaxed. Repeat on the rear bolts. DO
NOT tighten until all bolts are installed. DO NOT
tighten the bolts until all bolts are installed.
13. Refer to Torque Tables in Section 2 to torque bolts.
14. Loosen the plate on the slotted side to adjust the
crown. This will move the screed frame in and out
on the wear plate to help align the bolts on the
opposite side.
15. Reinstall the screed covers in reverse order, then
the walkboard (if applicable).