PIN AS 4771370 - Caterpillar

Illustration 1 g00493775
The clearance between the elevator flights and the top of the cutting edge may be adjusted. The distance between the top of the cutting edge and the elevator flights is set at the factory at approximately 61 mm (2.4 inches). Two shims (3) are located on top of the welded bracket (6) when the machine is shipped from the factory. The welded brackets (6) are located on each side of the bowl. The shims must be equally placed on each of the brackets. A special plate (5) is located above the removable shims (3) . The top plate (5) must remain in the top position. The top plate (5) prevents damage to the attaching bolts (1) . Four shims (2) are located on the bottom of the welded bracket (6) when the machine is shipped from the factory. Shims may need to be added to the top of the bracket when you are working in material which is compacted. The space that is between the cutting edge and the elevator flight will become wider. Shims may also need to be added to the top of the bracket when the components of the elevator become worn.Shims may need to be removed from the top of the bracket when you are working in loose material. The space that is between the cutting edge and the elevator flight will become narrower.
Park the machine on level ground. Lower the bowl. Apply the parking brake.
You should raise the front of the elevator with a jack or a hoist. Place blocks or stands under the front of the elevator once the elevator has been raised. Lower the elevator until the elevator is resting on the blocks or stands.Note: The front of the elevator must not be resting on the top plate (5) .
Remove the bolts (1) that hold the shims in place.
Reposition the shims (2,3) .
Install the bolts (1) .
Follow Steps 3 through 5 in order to position the shims on the other side of the bowl.
Lower the front of the elevator.