F.
Install the Chain
S 424-013
(1)
Do these steps to install the chain (19, detail C), if you removed it:
(a)
Connect the chain (19) to the actuator rod end (5). 1) Align the holes in the chain links with the hole in the rod
end (5) and install the pin (4). 2) Install the washer (18) and the cotter pin (17).
(b)
Turn the chain sprocket (21) to easily get access to the attachment point.
(c)
Connect the chain (19) to the sprocket (21).
(d)
Align the holes in the chain links with the hole in the sprocket (21) until the head of the attachment pin (3) on the rod end is up (doors 1-4) or down (door 5). 1) Put the attachment pin (3) through the chain (19) and the
sprocket (21).
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2) Install one to three washers (20) to fill the clearance between the chain (19) and the cotter pin (17), if it is necessary. a) Install the cotter pin.
(e)
Turn the sprocket (21) until the chain (19) is held in position with the chain guard.
G.
Install the Actuator
S 424-014
(1)
Do these steps to install the actuator (14).
(a)
Apply a thin layer of grease to the threaded part of the actuator shaft to avoid damage to the seal.
NOTE: If a new seal assembly (8) is installed, apply a fillet
____ seal of BMS 5-95 around the edge of the seal mounting bracket.
(b)
Move the actuator piston rod (7, detail C) through the seal assembly (8).
(c)
Install the actuator lug in the support bracket.
(d)
Install the rubber spacer (10).
(e)
Attach the actuator to the support bracket with bolt (11), washers (12) and the nut (13).
(f)
Install the checknut (6) on the actuator piston rod (7).
(g)
Close and latch the door.
(h)
Extend the actuator piston rod (7) to touch the rod end (5) connected to the chain (19).
CAUTION: DO NOT LET THE CHAIN (19) TWIST WHEN YOU INSTALL THE
_______ ACTUATOR PISTON ROD (7) ON THE ROD END (5). THIS CAN CAUSE DAMAGE TO THE CHAIN.
(i) Install and turn the actuator piston rod (7) on the rod end (5). 1) Make sure the clearance between the lugs on the
sprocket (21) and body torque tube is satisfactory (Section A-A).
NOTE: You must fully extend the actuator piston rod and
____ the chain when you measure the clearance.
(j) Tighten the checknut (6) to 200-230 pound-inches.
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(k)
Apply a thin coat of antiseize compound to the threads where the pressure line (15) connects to the actuator (14).
(l)
Connect the pressure line (15) to the actuator (14).
(m)
Tighten the nut to 100-115 pound-inches.
H.
Emergency Power System Test
S 714-027
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