LeeBoy 8520C - Track Roller and Sprocket Replacement; Track Rollers Replacement Procedure; Track Sprocket (Poly) Replacement

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LeeBoy 8520C Conveyor Paver 5-39
Maintenance
Track RollersTrack Rollers
1. Raise conveyor and insert safety prop. (Pages 5-6
and 5-7)
2. Release track tension by screwing the relief
cartridge out of the manifold (about three turns or
until you hear the pressure release). (Page 5-50)
3. Jack up the paver at least two feet off the ground
for enough clearance under the undercarriage to
perform this procedure.
Crush hazard! Always use safety
blocks in addition to jack when working under the
paver to prevent serious injury or even death.
4. Remove the faulty rollers and replace with new
ones.
5. Torque bolts. (Refer to Torque Tables in Section
2.)
6. Ensure the track chain is fully seated with the drive
sprocket and rollers are aligned with chain center.
7. Tighten tension relief.
8. Lower paver to the ground and start machine. Track
tension will automatically adjust when machine is
started.
9. Ensure the track chain remains fully seated with
drive sprocket and rollers aligned with the chain
center.
Track Sprocket (Poly)Track Sprocket (Poly)
1. Raise conveyor and insert safety prop. (Pages 5-6
and 5-7)
2. Rotate the track master pin to the bottom of the
sprocket.
3. Release track tension by screwing the relief
cartridge out of the manifold (about three turns or
until you hear the pressure release).
4. Remove track master pin at bottom rear of sprocket.
Drive paver forward to disconnect track from the top
of the sprocket.
5. Jack up the paver until the sprocket clears the track.
Crush hazard! Always use safety
blocks in addition to jack when working under the
paver to prevent serious injury or even death.
6. Remove torque hub bolts holding sprocket. (Figure
5-45 on Page 5-37)
7. Remove rear track roller.
8. Slide sprocket off and replace.
9. Slide sprocket back in place.
10. Place thread-locking adhesive on bolts and install
bolts holding sprocket.
11. Lower paver so that sprocket goes back into track
chain. Drive paver forward to rotate track onto top
of the sprocket.
12. Place master pin back in track and place thread-
locking adhesive on bolts.
13. Tighten relief cartridge in the manifold.