TM 55-1520-240-23-1
1-97
PREPARE HELICOPTER FOR FLYABLE STORAGE — GENERAL
PROCEDURES
(Continued)
1-97
PREPARE ROTOR SYSTEM
13.
Check sight indicators on shock absorbers,
vertical hinge pin bearing oil tanks, pitch varying
bearing oil tanks, and hub oil tanks. Service if
required (Tasks 1-55 and 1-58).
14.
Lubricate swashplate (Task 1-90).
PREPARE FUEL SYSTEM
15.
Drain water from fuel tanks. Fill tanks (Task
1-51). Keep tanks full and free of water through
complete storage period.
PREPARE ELECTRICAL SYSTEM
16.
Check that EMER EXIT LTS switch is set to
DISARM.
17.
Unplug battery. Wrap plug. Use barrier material
(E81). Wrap barrier material, and secure
wrapped plug to airframe. Use tape (E388).
18.
Keep battery in helicopter if temperature is above
-40ºF (-40ºC). Remove battery from helicopter
and store if temperature is below -40ºF (-40ºC).
(Refer to TM 11-6140-203-23).
19.
Clean and service battery (TM 11-6140-203-23).
PREPARE LANDING GEAR
20.
Service tires (Task 1-73).
21.
Service shock struts (Tasks 1-69 thru 1-72).
22.
Clean exposed polished surfaces of shock strut.
Use cloth (E120) soaked with hydraulic fluid
(E197). Wipe dry. Apply fluid (E197) to cleaned
area of strut. Wear gloves (E186).
Do not allow tape (E38) to contact
polished piston.
23.
Wrap polished pistons. Use barrier material
(E81). Secure barrier material. Use tape (E388).
PREPARE AIRFRAME
24.
Close doors, windows, and ramp unless
ventilation is required.
25.
Cover all fuselage openings to prevent entry
of water, dust, or other foreign materials. Use
protective covers (Task 1-32). Use barrier
material (E81) for openings where covers are
not provided. Secure barrier material. Use tape
(E388).
26.
Open drain plugs on underside of fuselage, ramp,
and pod sections. Install cheesecloth (E112)
over plugs to prevent entry of insects and small
vermin. Secure cheesecloth with tape (E388).
27.
Moor helicopter (Task 1-26 or 1-27).
MAKE LOG BOOK ENTRIES
28.
In helicopter log book, on forms DA 2408-13
and DA 2408-15, record data and date placed in
flyable storage. (Refer to DA PAM 738-751.)
INSPECT
NO BREAK - WORK HARDER
NO BREAK - WORK HARDER
FOLLOW-ON MAINTENANCE:
Inspect during storage (Task 1-98).
END OF TASK
1-365
