EMC 5-3810-206-35/14 (2)
46
Shaft
49
Driven rotor
47
Coupling (2 rqr)
50
Drive rotor
48 Cover
Rear blower
Figure 3-15. Blowers, exploded view (continued) (sheet 2 of 2).
(16) Remove seal rings (14) and seals (15)
lockwashers (31), seals (38), gaskets
from dowels (39), then slide rotors (18 and 48) from
(41), and gaskets (44) at every
housing (16).
disassembly, and replace with new
items from repair parts kit.
NOTE
When disassembling rear blower,
(1) Clean all parts and dry thoroughly.
rotors (49 and 50, sheet 2, fig. 3-15)
(2) Inspect all parts for damage or defect,
are removed in step (16) above.
paying particular attention to the following features:
(a) Inspect ring bores in end plates for
(17) Remove capscrews (25, sheet 1 of fig.3-
excessive wear or roughness. These defects in end
plates will prevent rings from sealing therefore defective
and 41), and tube nut (40) from end plate (21).
end plates must be replaced.
(18) Reassemble the blowers by reversing the
(b) Inspect bore in each of the bearing
procedures outlined in steps (1) through (17) above.
cages.
If bore dimension exceeds 1.3765 inches
diameter, cages are defective and must be replaced.
d. Cleaning, Inspection, and Repair.
(c) Check rotor end thrust clearance by
measuring thickness of bearing cage with a gage.
Measure the distance from thrust face of gear to end of
CAUTION
gear hub. If the difference between these two points is
Discard all washers (1), non-metallic
greater than 0.005 inch, end thrust is too great. Remove
washers (2), shims (8), gaskets (5),
shims as required to obtain between 0.003 and 0.004
seals (12), seal rings (14), seals (15),
inch clearance.
seals (19), shims (20), gaskets (22),
thrustwashers
(27),
rotor
AGO 20051A
3-19
