TM 55-1905-220-14-6
3-144. BLOWER - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
INSPECTION (Cont)
c.
Blower
A worn blower drive,
To correct any
drive
resulting in a rattling
of the above
noise inside the blower,
conditions, re-
may be detected by grasp-
move the blower
ing the top rotor firmly
from the engine
and attempting to rotate
and replace it.
it. Rotors may move from
3/8" to 5/8", measured at
the lobe crown, with a
springing action. When
released, the rotors
should move back at least
1/4 inch. If the rotors
cannot be moved as direct-
ed above, or if the rotors
move too freely, inspect
the flexible blower drive
coupling and replace it
if necessary.
3-2437