ENGINE AR- 4810259 - Caterpillar

Illustration 19 g01147844
Lower bearing mount that is being leveled from the front to the back (A) Location to weld nuts
Illustration 20 g01147842
Position of the lower bearing ring
Weld three nuts to the side of the lower bearing ring at locations (A). Partially screw three bolts in the three nuts. Place a level on the horizontal surface of the lower bearing mount. By using the three bolts, level the bearing from the front to the back and from the side to the side. The lower bearing ring must be oriented correctly. The flat side of the lower bearing mount must be parallel to the front cutting edge of the scraper.
Tack weld the ring for the bearing mount in place.
Remove the nuts and bolts and lower bearing from the lower bearing ring.
Finish welding the lower bearing ring to the scraper floor. Allow the lower bearing ring to cool.
Bolt the lower bearing to the lower bearing ring. Clean the top surface of the bearing.
Remove the bridge frame from the bowl.Note: Mark the front of the bridge frame and the back of the bridge frame for use during installation of the bridge frame on the bowl.
Illustration 21 g01147615
Oil plug for the lower bearing
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Inspection plate on auger
Install the auger on the lower bearing. Make sure that the inspection plate on the auger is located on the side of the bearing with the oil filler plugs.
Reinstall the bridge frame. Bolt the bridge frame to sides. If a new bridge frame is being installed, proceed to step 20. If the existing bridge frame is being used, proceed to step 21.
If a new bridge frame is being installed, install the bolt locator plates under the bolts, but do not weld on the bolt locator plates yet.
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Placement of the level that is used to level the scraper from the side to the side
Illustration 24 g01147609
Placement of the level that is used to level the scraper from the front to the back
Illustration 25 g01147747
Bolts and bolt holes that are used to level the mounting