TM 55-1520-240-23-5
6-122
INSTALL FORWARD TRANSMISSION OIL COOLER AIR INLET DUCT
6-122
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Drill Motor
Twist Drill, 7/32 Inch
Materials:
Marking Pencil (E271)
Personnel Required:
Medium Helicopter Repairer
Inspector
Aircraft Structural Repairer
References:
TM 55-1520-240-23P
NOTE
If installing a new duct, go to step 7.
INSTALL REMOVED TOP SEGMENTS
1.
Position top left segment (1) on airframe
mounting flange (2) with seal (3) against shroud
(4). Align two holes (5) in segment with holes
(6) on left side of flange (2). Loosely install two
bolts (7) and washers (8).
2.
Position top right segment (9) on airframe
mounting flange (2) with seal (10) against shroud
(4). Align two holes (11) in segment with holes
(6) on right side of flange (2). Loosely install two
bolts (12) and washers (13).
3.
Install shims (14) between mating flanges (15
and 16). Install three bolts (17) and washers (18).
4.
Tighten four bolts (7 and 12).
INSPECT
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