TM 55-2840-241-23
NOTE
Before removing the engine from
the shipping container, inspect for
evidence of rough handling or
tampering.
To remove the engine from the shipping
and storage container, proceed as follows:
a. Loosen nut (17, figure 3-1) and open
cover (19). Remove the engine records from
the records receptacle.
b. Loosen two nuts (26) and open cover
(31). Loosen air valve (32) and allow the con-
tainer to depressurize.
Make certain that all air pressure
has been released before loosening
nuts and bolts 1 and 37). If nuts
are removed before pressure is
released internal pressure could
blow off cover.
c. Remove nuts (1) and bolts (37) from the
container splitline and remove cover (2).
Ensure upper half of shipping con-
tainer does not strike engine when
removing cover.
Damage to en-
gine could occur.
d. Install engine assembly lift, tool No,
6796963 on the gearbox top mounting ad
and attach a hoist. Raise the engine only
enough to take the strain off the mounts.
e. Remove four nuts (7), washers (6), and
bolts (4) from the engine side mounts.
Remove two cotter pins (8 , pins (9), and adap-
ters (5) from the engine side mounts.
f. Remove cotter pin (14) and pull out on
pin assembly (13) until it disengages from the
engine bottom mount.
g. Lift the engine assembly out of the ship-
ping container. Remove the three engine
mounting brackets (12) from the engine; these
brackets are to remain with the shipping con-
tainer. Install the three engine mounting
brackets supplied with the en me turnover
stand tool No. 6795579, on the engine. In-
stall the engine m the turnover stand.
Do not use the shipping container
mounting brackets in lieu of the
turnover stand mounting brackets.
Brackets are not interchangeable,
damage to turnover stand could
occur.
h. Place all loose shipping container
hardware in the cloth bag supplied with the
container. and place the bag m the bottom of
the container.
i. Remove desiccant from desiccant basket.
j. Install gasket (3) on container base as-
sembly (24).
k. Lower cover assembly (2) into place.
Engage the forward end of the cover with the
guide in in the closure flange of base assemb-
ly (24); then lower the aft end. Ensure that
gasket (3) is properly seated.
1. Install thirty-two bolts 37) and nuts (1) in
the closure flange. Bolts (3 shall be in-
serted from thhe bottom side of the closure
flange. Tighten nuts (1) finger tight. Apply
preservative to bolt threads (item 2, table 2-2).
3-5. Engine Depreservation.
a. Remove engine shipping caps, plugs, and
covers from the engine as required (see figure
3-2.)
b. Remove the lockwire from the fuel con-
trol and governor stops and anti-lcmg air valve
c. Remove all barrier material and tape.
Remove tape residue with solvent (item 3,
table 2-2).
d. Remove any corrosion from the exterior
surfaces of the engine and touch up paint as re-
quired. (Refer to paragraphs 7-25b and 7-29).
NOTE
Flushing of the engine fuel system
is not required.
3-6. Inspection of Engine Dropped During
Handling.
If the engine is dropped during handling,
perform the following inspection and tests:
a. Inspect accessory drive gearbox for crack-
ed flanges. If cracked flanges are suspected, refer
b. Inspect governor and tachometer drive
for cracks, distortion, and bent shafts.
3-2
Change 23
to TM 1-1520-254-23, Technical Manual Aviation
Unit Maintenance (AVUM) and Aviation Intermediate
Maintenance (AVIM) Manual Nondesturctive Inspection
Procedure for OH-58 Helicopter Series.
If cracks in governor or tachometer are
suspected, refer to TM 1-1520-254-23,
Technical Manual Aviation Unit Maintenance
(AVUM) and Aviation Intermediate Maintenance
(AVIM) Manual Nondestructive Inspection
Procedure for OH-58 Helicopter Series.