TM 5-3895-374-24-2
10.
Support the discharge hood with a hoist or crane and remove the fasteners holding the hood in place. Remove
the hood.
11.
The belt scraper is held on with two fasteners, one on either side of the conveyor. Remove the fasteners and the
belt scraper.
12.
Support the head pulley/shaft assembly with a sling around the head shaft on either side of the head pulley.
Remove the two bolts in each of the two pillow block bearings. The assembly can be removed.
13.
Loosen the lock collar on the pillow block bearing and remove the bearing from the shaft. Repeat for the other
bearing. The pulley is removed from the shaft by removing the two bushings holding the shaft in the pulley. The
pulley can be removed from the shaft.
14.
Remove the back up bar from the discharge hood by removing the fasteners.
15.
Remove the scraper back up plate from the belt scraper.
B.
Inspection
1.
Inspect the pillow block bearings. If the seals are damaged or leak grease or if the bearing does not rotate
smoothly, replace it.
2.
Inspect the pulley shafts for damage and to determine if they are straight.
Replace the shaft(s) if it is bent.
3.
Inspect the pulley end plates for damage or cracks. Repair or replace the pulley if either end plate is damaged.
The head pulley face has been vulcanized with rubber. If this rubber is worn off, re-vulcanize 50 duro-meter
rubber to the pulley face or replace the pulley.
4.
Inspect the pulley bushings. If they are damaged, cracked or worn, replace them.
5.
The scraper rubber must extend beyond the scraper back up plate by at least one inch. If it does not, adjust the
rubber so that it does or if necessary, replace with a new rubber.
6.
The scraper extra weights are adjustable on the scraper. Position these so that the scraper does not bounce
when the belt is running. This means adjusting their location after start up (but not while the conveyor is running).
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