Vmar Challenger 40ARF Trainer, Assembly And Operation Manual

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VMAR CHALLENGER 40ARF TRAINER
TM
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6.3.8 Thread the plastic
control horn [CHH] onto the
exposed threaded end of the
bolt that is protruding from the
left side of the rudder. Screw
the control horn on until the
bolt end just protrudes from the
control horn. Rotate the control
horn so that it is "facing"
towards the front.
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6.3.9 Gently move the
control horn back and forth and you should see the
rudder move with it. Work this back and forth a dozen
times and it will loosen up.
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6.3.10 Apply masking tape across the rudder and the
top of the vertical stabilizer to immobilize the rudder in a
neutral position. This will make setting up the controls
much easier later on.
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6.3.11 Turn the fuselage right way up.
Locate the slot that has been machined in
the top of the fuselage to accommodate the
vertical stabilizer.
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6.3.12 Trial fit the vertical
stabilizer into the slot in the top of the
fuselage. Push the stabilizer all the way
down into the slot so that it seats in the
bottom of the slot and so that the fin protruding from the
front of the stabilizer sits against the top of the fuselage.
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6.3.13 Use a Triangle or Square to align the vertical
stabilizer with respect to the horizontal stabilizer. A few
degrees of discrepancy is not an issue just verify that you
can align the vertical stab at approximately 90 degrees
with respect to the horizontal stabilizer.
BOLT
CONTROL
HORN
CYLINDER NUTS
METAL
BOLTS
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6.3.3 Position the vertical stabilizer [TV] so that it is
upright with the pointed end facing away from you.
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6.3.4 Locate the rudder control horn hole in the rudder.
The hole is located about 15 mm (5/8 in.) from the bottom
of the rudder and about 10 mm (3/8 in.) from the hinge line.
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6.3.5 Place the plastic bevelled washer [CHW] on the
metal bolt [CHB] so that the flat side of the bevelled washer
is against the head of the bolt.
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6.3.6 Put the bolt through
the hole in the rudder from the
right side of the rudder. The
bevelled washer will now have
it's bevelled end facing the
hole. The bevel will help centre the bolt in the hole as you
tighten the bolt.
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6.3.7 Hold the
bolt and bevelled
washer in place and
thread the plastic T-
nut
[CHN] onto the
threaded end of the
bolt where it pro-
trudes from the left
side of the rudder.
Thread the narrow
end of the T-nut on first. Use a Phillips screw driver to
tighten the bolt and draw the narrow end of the T-nut into
the hole in the rudder. Try to keep the T aligned fore and
aft with respect to the fuselage. Tighten the bolt snugly so
that the wood in the rudder is slightly compressed. Holding
the "T" portion of the T-nut with a small Crescent wrench
helps installation.
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STEP 6.3 - PREPARING THE
VERTICAL STABILIZER.
BOLT
BEVELLED
WASHER FLAT SIDE OUT
BEVELLED
WASHER FLAT
SIDE OUT
T-NUT
BOLT
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1 Metal bolt [CHB]
2.5 mm x 25-30 mm
(1 to 1-3/16 in.)
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1 Plastic control horn
[CHH]
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1 Plastic bevelled
washer [CHW]
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1 Plastic T-nut [CHN]
TV
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6.3.1 Remove the vertical
stabilizer [TV] with pre-
installed rudder from its
shipping bag.
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6.3.2 Locate a control horn set from
the Control Horn Parts Bag. A control horn set consists of...
SLOT
VERTICAL STABILIZER SHOWN.
FOR PURPOSES OF CLARITY, THE
HORIZONTAL STABILIZER IS NOT SHOWN HERE