BAFFLE AS 3323487 - Caterpillar

12. Use another four ton jack to raise the yoke on the propel side of the machine approximately 13 mm (.5 in.). This will relieve tension on the shock mounts.
The nuts in step 13 should be replaced with new parts during reassembly.
13. Remove the bolts, washers, and nuts securing the drum to the vibratory side of the yoke. Raise or lower the jack slightly, if needed, to remove the bolts. 14. Remove the shims between the yoke support housing (22) on the propel side of the drum. If shims are wedged in too tightly to remove, make sure they will not cause any damage when the drum is removed.
Make certain there are no wires or hoses that could be damaged when moving the drum.
Use caution and blocking to make sure drum does not roll away. Damage to equipment or injury to personnel could result from a runaway drum.
15. Use pry bars to carefully roll the drum out of the yoke. 16. After removal, block drum to prevent accidental rolling. 17. Support both sides of the yoke with blocks of hardwood or other suitable material. Remove the two jacks.
Make sure scraper is supported properly before moving.
Heavy component. Avoid possible injury. Do not move prior to securely attaching a proper lifting device.
18. If necessary, the inside scraper may be removed. Support the scraper with a hoist. 19. Remove the bolts, washers, and nuts holding the scraper to the yoke.20. Check the condition of the two rubber scraper blades (one located in front of the drum, and one located in the rear of the drum). Replace any blade that is worn out, fatigued, or torn.Install Drum Assembly
1. If the rear scraper was removed when the drum was removed, install as follows:
Heavy component. Avoid possible injury. Do not move prior to securely attaching a proper lifting device.
a. Attach a hoist and chain to the inside scraper assembly.b. Move the scraper into place inside yoke with a hoist.c. Fasten scraper to yoke with four bolts, washers, and nuts. 2. Set four ton jack under the yoke on the propel side. Set another four ton jack under the yoke on the vibratory side. Remove blocks.3. Use pry bars to carefully roll the drum into the yoke.4. Once the drum is in position rotate shock mount support (1) and support housing (22) to align bolt holes with bolt holes in yoke. 5. Install any shims found between the yoke and support mount during drum removal.6. Install the bolts, washers, and nuts securing the drum to the vibratory side of the yoke. Raise or lower the jack slightly, if needed, to start the bolts.
Heavy component. Avoid possible injury. Do not move prior to securely attaching a proper lifting device.
7. If replacing the front drum, attach a hoist and chain to the drum drive motor. 8. Using the hoist, move the front drum drive motor into position and secure with the bolts and washers. 9. If replacing the rear drum, reconnect the pressure, return, and case drain