TM 55-1520-240-23-3
4-28
INSPECT FORWARD ENGINE MOUNT PARTS
(Continued)
4-28
NOTE
Procedure can be used to inspect
parts from No. 1 or No. 2 engine
mounts.
NOTE
If a crack is suspected in the
forward engine mount caps, forward
engine mount adapter or forward
engine mount structure, refer to TM
1-1520-253-23.
INSPECT OUTBOARD MOUNT PARTS
1.
Clean bearing (1) and cap (2) with solvent (E162)
and cloths (E135). Wear gloves (E186).
2.
Measure inside diameter of bearing (1). Diameter
of bearing shall not be more than 0.8166 inch.
3.
Measure outside diameter of bolt (3). Diameter
shall not be less than 0.8122 inch.
4.
Measure inside diameters of bushings (4 and 5)
in two lugs (6 and 7). Diameter shall not be more
than 0.8154 inch.
5.
Measure inside diameter of bushings (8 and 9)
in two lugs (10 and 11). Diameter shall not be
more than 0.6270 inch.
4-154