TM 55-1520-240-23-4
5-13.1
REMOVE VERTICAL HINGE PIN OIL TANK SIGHT INDICATOR
5-13.1
INITIAL SETUP
Applicable Configurations:
All
Tools:
Powertrain Repairer’s Tool Kit, NSN
5180-00-003-5267
Container, 2 Quart
Torque Wrench, 30 to 150 Inch-Pounds
Materials:
Cloth (E120)
Lockwire (E231)
Gloves (E186)
Parts:
Packings
Personnel Required:
Aircraft Powertrain Repairer (2)
Equipment Condition:
Battery Disconnected (Task 1-39)
Electrical Power Off
Hydraulic Power Off
Forward Rotor Blade Tied-Down (Task 1-26)
Work Platform Open (Task 2-2)
NOTE
There are 12 vertical hinge pin oil
tanks. Two sight indicators are on
each oil tank. Procedure is similar
to remove any sight indicator.
Differences are noted in text.
1.
Remove lockwire from one filler/drain plug (1) on
upper tank (2). Remove plug and packing (3).
NOTE
One cup of oil must be drained when
removing upper tank sight indicator.
All oil must be drained when removing
lower tank sight indicator.
2.
Remove lockwire from one filler/drain plug (4) on
lower tank (5). Remove plug and packing (6).
Drain oil. Use container and cloth (E120) for
spilled oil. Wear gloves (E186).
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