Claas LEXION 480, Repair Manual

Page: 301 / 1018

188 678.1 - RHB LEXION 480
5.1.5
Returns elevator
Drive the expansion pin out of the sprocket, then pull
sprocket from the shaft.
(Fig. 14)
Remove the set screw from the cam wheel. Tap the
cam wheel free, then pull the bearing off.
(Fig. 15)
Installing the top returns auger
1. Turn the returns auger in from the right through
the assembly slot.
2. Install the flange ball bearings on both sides and
bolt tight. Slide on the cam wheel on the
right-hand side.
3. Screw the screw plug into the assembly slot.
4. Fit the sprocket into position on the returns auger
and secure using an expansion pin.
5. Align the returns auger to the sprocket and tighten
the lock collar and the cam wheel of the flange ball
bearings by tapping them in direction of rotation,
then secure.
6. Install the drive chain and tension it, using the
block tensioner (S).
(Fig. 9)
7. Refit the magnetic pick-up and adjust so that the
clearance between the pick-up and the cam of the
cam wheel is
1 ± 0.5 mm . Connect the cable.
8. Refit the cover at the top of the returns elevator
and the drum inspection cover.
14
15