TM 55-1520-240-23-4
5-28
REMOVE VERTICAL HINGE PIN OIL TANKS
5-28
INITIAL SETUP
Applicable Configurations:
All
Tools:
Powertrain Repairer’s Tool Kit, NSN
5180-00-003-5267
Container, 2 Quart
Wood Block, 2 x 3 x 24 Inches
Materials:
Cloth (E120)
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)
Vertical Hinge Pin Nuts Removed (Task 5-64)
NOTE
There are 12 vertical hinge pin oil
tanks, two on each pitch housing.
Procedure is similar to remove any oil
tanks. 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. All oil must be
drained when removing lower tank.
2.
Remove lockwire from one filter/drain plug (4)
on lower tank (5). Remove plug and packing
(6). Drain oil. Use container and cloth (E120)
for spilled oil.
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