TM 55-1520-240-23-1
1-102
PREPARE HELICOPTER FOR SHORT TERM STORAGE
(Continued)
1-102
f.
Install high pressure caps on all disconnected
fuel lines and on open ports and fittings on
fuel control, except the fuel inlet port.
g.
Install high pressure caps on fuel boost pump
open ports and fittings, except the fuel inlet
port.
h.
Pour lubricating oil (E251) into fuel control
inlet port. Cap port.
i.
Pour lubricating oil (E251) into fuel control
inlet port. Cap port.
j.
Spray corrosion preventive compound (E154)
in the areas between the inlet housing struts
for 30 seconds. Direct the spray evenly on
all compressor blades.
k.
Spray 1/2 pint of lubricating oil (E251) into
inlet housing and exhaust diffuser openings.
Move spray gun constantly to cover all
internal parts.
l.
Inspect engine to be sure that visible unplated
or unpainted metal surfaces are coated with
lubricating oil (E251). Pay particular attention
to combustor housing, exhaust diffuser, air
diffuser, and internal and external threads.
m.
Make sure that parts, assemblies, and
accessory components are complete and
secure.
n.
Seal engine holes or ports. Use protective
caps, plugs, barrier material (E81), or tape
(E388).
o.
Close engine cowl. Seal all louvered
openings in cowl. Use barrier material (E81)
and tape (E388).
p.
Install engine air inlet and exhaust protective
covers (Task 1-32).
q.
Place a tag on the ENGINE START switch in
the cockpit stating: ENGINE PRESERVED,
MAINTENANCE REQUIRED, DO NOT
OPERATE.
AUXILIARY POWER UNIT
14.
Prepare APU for storage as follows:
a.
Disconnect battery (Task 1-39).
b.
Service APU oil sump to full (Task 1-53).
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