REMOVE VERTICAL HINGE PIN OIL TANKS
Powertrain Repairers Tool Kit, NSN
Container, 2 Quart
Wood Block, 2 x 3 x 24 Inches
Aircraft Powertrain Repairer (2)
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)
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.
Remove lockwire from one filler/drain plug (1) on
upper tank (2). Remove plug and packing (3).
One cup of oil must be drained when
removing upper tank. All oil must be
drained when removing lower tank.
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.