TM 5-4310-379-14
5-13. Blower Assembly.
This task covers:
Repair
INITIAL SETUP:
Tools
Materials/Parts
General Mechanic's Tool Kit
Gasket, Rear Cover Plate
(NSN 5 180-00-177-7033)
Gasket, Air Heater Cover
Micrometer (NSN 5210-00-554-7134)
Solvent, Dry Cleaning (Item 23, Appendix D)
Installer, Bearing (PN J 1682-9)
Rags, Wiping (Item 21, Appendix D)
Pilot, Oil Seal (PN J 1682-10)
Puller, Timing Gear (PN J 1682-27)
Equipment Condition
Remover, Oil Seal (PN J 1682-32)
Tool Set, Remover and Replacer (PN J 3154-04)
Blower Assembly Removed (para. 4-13)
Blower Clearance Feeler Gage Set (PN J 1698-02)
Wrench, Torque (NSN 5120-00-554-7292)
Repair.
(1)
Disassemble. (figure 5-10)
(a)
Place a clean folded towel between the rotors and a towel between rotor and the housing to prevent
the rotors from turning.
(b)
Remove two timing gear retaining nuts (1) and lockwashers (2).
(c)
Using timing gear pullers, remove simultaneously the two rotor timing gears (3) from the rotor shafts
(4).
(d)
Remove shims (5) from both rotor shaft (4).
(e)
Remove six screws (6) and lockwashers (7) securing bearing retainers (8) to front end plate (9) and
remove retainers.
(f)
Remove one long bolt (10) and lockwasher (11).
(g)
Remove four bolts (12) and lockwashers (13) securing front end plate (9) to blower housing (14).
(h)
Remove towel between the blower rotors and housing.
(i)
Using pullers, remove simultaneously the front end plate (9) and bearings (15) from housing and
rotor shaft.
(j)
Press rotor shafts (4) out of rear bearings (16) and slide rotors out of blower housing.
(k)
Remove five bolts (17) and lockwasher (18) securing rear end plate (19) to blower housing (14) and
remove end plate.
(l)
Remove the two bearing retaining rings (20) from rear end plate (19).
(m)
Press bearings (15) and (16) and oil seals (21) out of end plates (9) and (19).
Change 1 5-36
