TM 55-2815-574-24
0111
DISASSEMBLE - Continued
d.
Back out center screw of puller (Figure 9, Item 5) far enough to permit the puller flange to lay flat against
adaptor J 6270-2.
e.
Place puller over the rotor shaft (Figure 9, Item 1) against the adaptor and secure puller
(Figure 9, Item 5) to adaptor with two bolts (Figure 9, Item 4) provided with the adaptor.
f.
Rotate the puller clockwise to remove the oil seal ring carrier (Figure 9, Item 6) and bearing races
(Figure 9, Item 3) from the rotor shafts (Figure 9, Item 1).
g.
Remove the remaining three oil seal ring carriers (Figure 9, Item 6) and bearing races (Figure 9,
Item 3) from the rotor shafts (Figure 9, Item 1) in the same manner.
h.
Discard oil seal ring carriers (Figure 9, Item 6)
END OF TASK
INSPECT
WARNING
Compound may cause irritation to eyes or skin. In case compound comes in contact with
eyes or skin, immediately flush eyes with water, wash skin with soap and water. Wear
protective goggles, gloves, and clothing. Failure to comply may result in personnel injury
or death.
1.
Wash all of the blower parts in cleaner.
2.
Inspect the bearing assemblies (Figure 7, Item 4) for any indications of corrosion or pitting.
WARNING
Lubricating oil may cause irritation to eyes or skin. In case lubricating oil comes in contact
with eyes or skin, immediately flush eyes with water, wash skin with soap and water. Wear
protective goggles, gloves, and clothing. Failure to comply may result in personnel injury
or death.
a.
Lubricate each bearing assembly (Figure 7, Item 4) with clean engine oil.
NOTE
The double row ball bearings are preloaded and have no end play. A new bearing will
seem to have considerable resistance to motion when revolved by hand.
b.
While holding the bearing inner race, rotate the bearing outer race slowly and check for rough spots.
c.
Replace bearing if any corrosion, pitting, rough spots when rotating, end play or any other damage is
found.
3.
Inspect the blower rotor lobes (Figure 9, Item 1) for burrs or scoring. If the rotors are burred or scored, use abrasive
cloth to remove burrs or scoring.
0111-8