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Figure 3-25 Exhaust Blower Drive
Figure 3-26 Exhaust Blower

TM-5-3895-374-24-2 M081 Asphalt Mixing Plant Manual
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TM 5-3895-374-24-2 NOTE The blower shaft assembly may not have to be removed to replace the blades. 5. The  four  bolts  holding  each  of  the  bearings  on  the  exhaust  blower  shaft  can  be  removed.    The  blower  shaft assembly can be removed to a bench. 6. The exhaust blower blades are bolted to the hub assembly.  Remove the fasteners holding the blades in place and remove the blades. 7. The bearing fan sub-assembly is in two halves.  Remove the bolts holding the two halves together and remove the fan. 8. Remove the shaft guard between the two bearings. 9. Remove the bearings following the procedures in Section 3-3-13. 10. The hub assembly is removed by removing the four set screw and jam nuts holding the hub to the shaft.  Slide the hub off the shaft. 11. The  upper  half  of  the  blower  housing  has  a  liner  bolted  into  it.    If  the  liner  is  to  be  replaced,  remove  the  six fasteners holding it to the housing. B.  Inspection 1. The  two  bearing  assemblies  must  be  inspected  carefully.    Replace  the  seals  with  new  ones  if  the  housing  is disassembled.  Note which bearing is fixed and be sure and put the fixing ring back in place when reassembling. Follow the procedures defined by the bearing manufacturer in Section 3-3-13. 2. Inspect the blower shaft carefully to confirm that it is straight.  Check for cracks or damage.  Inspect the key seats for damage.  Repair or replace as necessary. 3. Inspect the blower hub assembly for cracks or damage.  Repair as necessary. 4. Replace the blower blades as a complete set if one or more is damaged or worn. 5. Inspect the bearing fan sub assembly and repair or replace if worn or damaged. 6. Inspect the exhaust blower liner.  If it is worn, replace with a new one. 7. Inspect the blower housing halves.  If they show signs of wear from the blades touching or rubbing on them, repair as necessary. page 3 - 767







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