Model Tech Blue Max Assembly Instructions Manual page 16

STEP 2: HINGING THE ELEVATOR
Hinge the elevator to the horizontal stabiliser, using the same techniques
that you used to hinge the ailerons to the wing. The elevator is hinged using four
hinges. When hinging the elevator, the tips of the elevator should be even with
the tips of the stabiliser and there should not be more than a 1/32" (1mm)
wide hinge gap.
IMPORTANT After allowing the C/A to fully cure, pull on the elevator to check the integrity of the hinges. Apply more C/A to the
hinge(s) if necessary.
STEP 3: INSTALLING THE TAIL WHEEL ASSEMBLY
Cut away the covering material from over the notch in the leading edge of
the rudder. The notch is located 2-1/4" (57mm) up from the bottom of the rudder.
Carefully drill a 3/32" (2.4mm) pilot hole into the leading edge of the rudder.
Position the pilot hole 1/2" (13mm) up from the bottom of the rudder and drill
the pilot hole 1/2" (13mm) into the rudder.
Cut a slot in the leading edge of the rudder from the base of the pilot hole
IMPORTANT The slot should be deep enough so that when the tail wheel wire is installed, the front edge of the tail wheel wire
of 5 minute epoxy. Be careful not to get any epoxy between the tail wheel wire
and the mounting bracket.
IMPORTANT Remember to roughen the gluing surfaces of the tail wheel
wire to ensure a strong glue joint.
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Remove the masking tape and double-check that both the elevator servo horn and the elevator are still centred. If necessary, thread
the clevis in or out to centre the elevator, then move the elevator up and down several times to ensure proper movement. The elevator
should move smoothly and not bind in any way.
STEP 4: INSTALLING THE RUDDER PUSHROD ASSEMBLY
Cut away the covering material from over the rudder pushrod exit hole in
the left side of the fuselage. The pushrod exit hole is located 2" (50mm) in front
of the rudder hinge line and 7/8" (22mm) below the stabiliser.
Cut away all but one arm from a "4-point" servo horn, then enlarge the hole
that is 5/8" (16mm) out from the centre of the servo horn, using a 5/64" (2mm)
diameter drill bit.
Install the 90º bend in the pushrod wire into the hole that you enlarged in
the servo arm, using one snap-keeper.
The pushrod wire should be orientated on top of the servo arm.
Carefully slide the pushrod wire into the rudder pushrod wire guide tube.
Centre the rudder servo, then install the servo horn onto the servo, making
sure that the servo horn is centred and points toward the side of the fuselage.
Install the servo horn retaining screw to secure the servo horn to the servo.
STEP 5: INSTALLING THE RUDDER CONTROL HORN AND CLEVIS
Install the control horn onto the right side of the rudder, using the same
techniques that you used to install the elevator control horn. The centreline
of the control horn should be 1-1/2" (38mm) up from the bottom of the rudder
(measured at the hinge line) and the clevis attachment holes should be lined
up over the hinge line. The base of the control horn should be parallel to the
hinge line, too.
Use a couple of pieces of masking tape, taped between the rudder and the
stabiliser, to hold the rudder centred.
With both the rudder servo and the rudder centred, thread a clevis onto
the pushrod wire and snap the clevis into the third hole out from the base
of the control horn.
Remove the masking tape and double-check that both the rudder servo horn and the rudder are still centred. If necessary, thread the
clevis in or out to centre the rudder, then move the rudder right and left several times to ensure proper movement. The rudder should
move smoothly and not bind in any way.
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