LeeBoy 8520C - Screed and Torque Hub Adjustments; Screed Extension Top Guide Adjustment; Torque Hub Hydraulic Motor Gear Adjustment

5-16 LeeBoy 8520C Conveyor Paver
Maintenance
Screed Extension Top Guide Screed Extension Top Guide
AdjustmentAdjustment
1. Retract both screed extensions completely using
the left and right extension switches on the control
panel. (Pages 3-6 to 3-7)
2. Loosen the top guide and hold-down bolts. (Figure
5-15)
3. Push guide down against the slide rail and tighten
allen screws until snug, starting from the outside
and working toward the center on each side of the
slide rail.
4. Using a jack, raise extension up until it ts the
bottom guide level.
5. Adjust top guide to allow for .008-inch clearance
across top guide.
6. Grease slide with copper-based anti-seize
lubricant.
7. Retighten the hold-down bolts, securing guides to
specication.
8. Adjust allen screws until proper setting is achieved.
9. Tighten hold-down bolts and torque. (See Torque
Tables in Section 2.)
10. Check operation and adjust if needed.
Allen
Screws
Allen
Screw
Top
Guide
Figure 5-15. Screed Extension Top Guide
Adjustment
Torque Hub Hydraulic Motor Torque Hub Hydraulic Motor
Gear AdjustmentGear Adjustment
Torque hub hydraulic motors are
calibrated and set at the factory. These adjustment
should only be performed by an authorized LeeBoy
dealer. Work not performed by an authorized dealer
can damage machine and void the warranty.
The low gear adjustment must be made to the slow
side drive motor only. The low gear adjustment screw
is located on the bottom of the drive motor. Make only
small adjustments at a time.
Your authorized LeeBoy dealer will perform the tracking
adjustment on the high side gear by adjusting the screw
on the top of the hydraulic motor. This adjustment on
the motor must be screwed in to equalize track speed.
Your LeeBoy dealer will perform the following proce-
dure to adjust either gear:
1. With paver running, push the 2-Speed switch.
2. Adjust screw (on bottom of the hydraulic motor for
low gear; on top for high gear) until you feel back
pressure on the adjustment screw. This indicates
the correct adjustment is close.
3. Finalize adjustment by making a one-quarter
(1/4) turn at a time until the correct adjustment is
accomplished. Recheck tracking.
NOTE: If hydraulic motor has not been previously
set, ten revolutions of the adjustment screw may be
required before noticing any difference in travel.