Page 1
ASSEMBLY MANUAL
Instruction Manual.
MAXI LIFT
“ Graphics and specications may change without notice “ .
33cc
Code: SEA209
Specications:
Wingspan---------------87.6 in (222.2 cm).
Wing area----------------1072.6sq.in (69.2 sq.dm).
Weight-------------------11.5 - 12.1 lbs (5.2 - 5.5 kg).
Length-------------------61.2 in (155.5cm).
Recommended engine size 33cc...............................
Radio--------------------7 channels with 10 servos.
Flying skill level intermediate/ advanced
1
Page 2
MAXI LIFT
INTRODUCTION.
ank you for choosing the MAXI LIFT ARF by SG MODELS . e MAXI LIFT was de-
signed with the intermediate/advanced sport yer in mind. It is a semi scale airplane which
is easy to y and quick to assemble. e airframe is conventionally built using balsa, plywood
to make it stronger than the average ARF, yet the design allows the aeroplane to be kept light.
You will nd that most of the work has been done for you already. e motor mount has been
tted and the hinges are pre-installed. Flying the MAXI LIFT is simply a joy.
is instruction manual is designed to help you build a great ying aeroplane. Please read this
manual throughly before starting assembly of your MAXI LIFT. Use the parts listing below to
indentify all parts.
WARNING.
Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it is
capable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOU
ASSUME ALL RISK & REPONSIBILITY.
If you are inexperienced with basic R/C ight we strongly recommend you contact your R/C
supplier and join your local R/C model Flying Club. R/C Model Flying Clubs oer a variety of
training procedures designed to help the new pilot on his way to successful R/C ight. ey
will also be able to advise on any insurance and safety regulations that may apply.
KIT CONTENTS
8
6
7
3
1
3
5
2
4
2
2
9
Page 3
Instruction Manual.
KIT CONTENTS.
SEA20901 Fuselage
SEA20902 Wing Set
SEA20903 Tail Set
SEA20904 Fiberglass Cowling
SEA20905 Canopy
SEA20906 Landing Gear
SEA20907 Wheels
SEA20908 Wing struts
SEA20909 Pilot
ADDITIONAL ITEMS REQUIRED.
0.75- 0.91 2-stroke.
0.91-1.25 4-stroke.
33cc gasoline engine.
Computer radio with 10 servos.
Glow plug to suit engine.
Propeller to suit engine.
Protective foam rubber for radio
system.
HINGING THE FLAP
M2x10 mm
.
TOOLS & SUPPLIES NEEDED.
ick cyanoacrylate glue.
30 minute epoxy.
5 minute epoxy.
Hand or electric drill.
Assorted drill bits.
Modelling knife.
Straight edge ruler.
2mm ball driver.
Phillips head screwdriver.
220 grit sandpaper.
90° square or builder’s triangle.
Wire cutters.
Masking tape & T-pins.
read-lock.
Paper towels.
M2x10 mm
.
3
Page 4
MAXI LIFT
HINGING THE ELEVATOR.
Note : e control surfaces, including the ai-
lerons, elevators, and rudder, are prehinged
with hinges installed, but the hinges are not
glued in place. It is imperative that you properly adhere the hinges in place per the steps
that follow using a high-quality thin C/A glue.
1) Carefully remove the aileron from one
of the wing panels. Note the position of the
hinges.
2) Remove each hinge from the wing panel
and aileron and place a T-pin in the center of
each hinge. Slide each hinge into the wing
panel until the T-pin is snug against the wing
panel. is will help ensure an equal amount
of hinge is on either side of the hinge line
when the aileron is mounted to the aileron.
NOTE : e hinge is constructed of a special material that allows the C/A to wick
or penetrate and distribute throughout
the hinge, securely bonding it to the wood
structure of the wing panel and aileron.
Epoxy
Hinge.
Epoxy
3) Slide the wing panel on the aileron until
there is only a slight gap. e hinge is now
centered on the wing panel and aileron. Remove the T-pins and snug the aileron against
the wing panel. A gap of 1/64” or less should
be maintained between the wing panel and
aileron.
4) Deect the aileron and completely saturate each hinge with thin C/A glue. e ailerons front surface should lightly contact the
wing during this procedure. Ideally, when
the hinges are glued in place, a 1/64” gap or
less will be maintained throughout the lengh
of the aileron to the wing panel hinge line.
5) Turn the wing panel over and deect the
aileron in the opposite direction from the
opposite side. Apply thin C/A glue to each
hinge, making sure that the C/A penetrates
into both the aileron and wing panel.
6) Using C/A remover/debonder and a paper towel, remove any excess C/A glue that
may have accumulated on the wing or in the
aileron hinge area.
4
Page 5
7) Repeat this process with the other wing
panel, securely hinging the aileron in place.
8) Aer both ailerons are securely hinged,
rmly grasp the wing panel and aileron to
make sure the hinges are securely glued and
cannot be pulled out. Do this by carefully applying medium pressure, trying to separate
the aileron from the wing panel. Use caution
not to crush the wing structure.
Instruction Manual.
Epoxy
Epoxy
Note :
Work the aileron up and down several times to “work in” the hinges
and check for proper movement.
HINGING THE RUDDER.
Glue the rudder hinges in place using the
same techniques used to hinge the ailerons.
Hinge.
Aileron control horn.
INSTALL FLAP CONTROL HORN.
Install the ap control horn using the same
method as same as the aileron control horns.
.
Fiberglass control horn.
.
INSTALL THE AILERONS
CONTROL HORN.
Fiberglass control horn
.
Epoxy
5
Page 6
MAXI LIFT
Epoxy
Aileron control horn.
INSTALL ELEVATOR CONTROL HORN.
.
INSTALL RUDDER CONTROL HORN.
Repeat steps to install the rudder control
horn as same as steps done for ailerons.
.
Fiberglass control horn.
.
Aileron control horn.
.
Epoxy
Epoxy
Rudder control horn.
Epoxy
INSTALLING THE MAIN
LANDING GEAR.
1) e blind nuts for securing the landing
gear are already mounted inside the fuselage.
2) Using the hardware provided, mount the
main landing gear to the fuselage.
Epoxy
6
Page 7
Collar.
Instruction Manual.
4x20 mm
INSTALLING THE FUSELAGE SERVOS.
Because the size of servos dier, you may
need to adjust the size of the precut opening
in the mount. e notch in the sides of the
mount allow the servo lead to pass through.
1) Install the rubber grommets and brass
collets onto the throttle servo. Test t the
servo into the aileron servo mount.
2) Secure the servos with the screws provided with your radio system.
Collar.
7
Page 8
MAXI LIFT
INSTALLING THE SWITCH.
Install the switch into the precut hole in
the side, in the fuselage.
3/32” Hole.
Elevator servo arm.
Servo tow.
Rudder servo.
Trim and cut
.
.
Switch for engine.
Servo capping.
Trim and cut
8
Page 9
Instruction Manual.
5) Slide the pushrod tube in the rewall and
guide it through the fuel tank mount. Use
medium C/A to glue the tube to the rewall
and the fuel tank mount.
6) Connect the Z-bend in the 600mm throttle pushrod to the outer hole of the carburetor arm.
Switch for receiver.
MOUNTING THE ENGINE.
1) Please see below pictures.
7) Slide the throttle pushrod wire into
the tube. Position the engine between the
mounts. Use four M4x30mm machine screws
to secure the engine to the mount as shown.
2) Use a pin drill and 5mm drill bit to drill a
small indentation in the mount for the engine mounting screw.
5mm
3) Use a drill to drill the four holes in the
engine mount rails.
4) On the re wall has the location for the
throttle pusshrod tube (pre-drill).
9
Page 10
MAXI LIFT
THROTTLE SERVO ARM
INSTALLATION.
Install adjustable servo connector in the
servo arm as same as picture below:
Loctite secure.
1 PCS
Adjustable Servo
connector.
Servo arm.
10
8) Move the throttle stick to the closed position and move the carburetor to closed. Use
a 2.5mm hex wrench to tighten the screw
that secures the throttle pushrod wire. Make
sure to use threadlock on the screw so it does
not vibrate loose.
INSTALLING THE STOPPER
ASSEMBLY.
1) Using a modeling knife, carefully cut o
the rear portion of one of the 3 nylon tubes
leaving 1/2” protruding from the rear of the
stopper. is will be the fuel pick up tube.
2) Using a modeling knife, cut one length of
silicon fuel line. Connect one end of the line
to the weighted fuel pick up and the other
end to the nylon pick up tube.
Page 11
Instruction Manual.
5) With the stopper assembly in place, the
weighted pick-up should rest away from the
rear of the tank and move freely inside the
tank. e top of the vent tube should rest just
below the top of the tank. It should not touch
the top of the tank.
6) When satised with the alignment of the
stopper assembly tighten the 3 x 20mm machine screw until the rubber stopper expands
and seals the tank opening. Do not overtighten the assembly as this could cause the
tank to split.
FUEL TANK INSTALLATION.
Vent tube.
Fuel fill tube.
Fuel pick up tube.
3) Carefully bend the second nylon tube up
at a 45º angle. is tube is the vent tube.
You should mark which tube is the vent
and which is the fuel pickup when you attach
fuel tubing to the tubes in the stopper. Once
the tank is installed inside the fuselage, it may
be dicult to determine which is which.
7) Slide the fuel tank into the fuselage. Guide
the lines from the tank through the hole in
the rewall.
Set of ignition.
Fuel tank.
4) Test t the stopper assembly into the tank.
It may be necessary to remove some of the
ashing around the tank opening using a
modeling knife. If ashing is present, make
sure none falls into the tank.
8) Use plywood template to hold in place the
fuel tank with C/A glue to secure the fuel
tank inside the fuselage.
11
Page 12
MAXI LIFT
Vent tube.
Fuel pick
up tube.
9) Connect the lines from the tank to the engine and muer. e vent line will connect
to the muer and the line from the clunk to
the carburetor.
Fuel ll tube.
Blow through one of the lines to ensure
the fuel lines have not become kinked inside
the fuel tank compartment. Air should ow
through easily.
COWLING
1) Slide the berglass cowl over the engine
and line up the back edge of the cowl with
the marks you made on the fuselage then
trim and cut as shown.
Because of the size of the cowl, it may be necessary to use a needle valve extension for the
high speed needle valve. Make this out of sufcient length 1.5mm wire and install it into
the end of the needle valve. Secure the wire in
place by tightening the set screw in the side of
the needle valve.
12
Page 13
2) While keeping the back edge of the cowl
ush with the marks, align the front of the
cowl with the cranksha of the engine. e
front of the cowl should be positioned so the
cranksha is in nearly the middle of the cowl
opening. Use the spinner backplate as a
guide. Hold the cowl rmly in place using
pieces of masking tape.
Instruction Manual.
INSTALLING THE SPINNER.
Install the spinner backplate, propeller and
spinner cone.
e propeller should not touch any part
of the spinner cone. If it does, use a sharp
modeling knife and carefully trim away the
spinner cone where the propeller comes in
contact with it.
Machine screw M3x10mm
3) Install the muer and muer extension
onto the engine and make the cutout in the
cowl for muer clearance. Connect the fuel
and pressure lines to the carburetor, muer
and fuel ller valve. Secure the cowl to fuselage using the M3x10mm screws.
INSTALLING THE AILERON - FLAP
SERVOS.
Servos.
Small weight.
Thread.
Because the size of servos dier, you may
need to adjust the size of the precut opening in
the mount. e notch in the sides of the mount
allow the servo lead to pass through.
13
Page 14
MAXI LIFT
1) Using a small weight (Weighted fuel pickup works well) and string, feed the string
through the wing as indicated.
2) Place the servo between the mounting
blocks and space it from the hatch. Use a
pencil to mark the mounting hole locations
on the blocks.
.
3) Use drill bit in a pin vise to drill the mouting holes in the blocks.
6) Secure the servo to the aileron hatch using
Phillips screwdriver and the screws provided
with the servo.
7) Apply 1-2 drops of thin C/A to each of the
mounting tabs. Allow the C/A to cure without using accelerator.
.
4) Apply 2-3 drops of thin C/A to each of the
mounting holes. Allow the C/A to cure without using accelerator.
8) A string has been provided in the wing
to pull the aileron lead through to the wing
root. Remove the string from the wing at
the servo location and use the tape to attach
it to the servo extension lead. Pull the lead
through the wing and remove the string.
14
5) Use dental oss to secure the connection
so they cannot become unplugged.
Page 15
Instruction Manual.
AILERON PUSHROD NSTALLATION.
100mm.
9) Set the aileron hatch in place and use a
Phillips screw driver to install it with four
wood screws.
M3 clevis.
Wing
M3 lock nut.
INSTALLING THE FLAP SERVO.
Repeat the procedure for the aileron servo.
15
Page 16
MAXI LIFT
90mm.
M3 clevis.
.
Wing
M3 lock nut.
INSTALLING TOW RELEASE FOR
SAIL PLANE. It is best to operate the aero-tow release
Screw the aero-tow mechanism into the
hole just behind the canopy, and apply
thread-lock uid to prevent the coupling and
nut from working loose.
e aluminium part must be shortened
enough so that the clevis can move freely,
adjust the rods accordingly.
mechanism using a momentary switch
mounted on the joystick. e servo travel
must be set accordingly.
INSTALLING THE HATCH OF BELLY
FUSELAGE.
16
.
Page 17
Instruction Manual.
INSTALLING THE HORIZONTAL
STABILIZER.
17
Page 18
MAXI LIFT
1) Using a ruler and a pen, locate the centerline of the horizontal stabilizer, at the trailing edge, and place a mark. Use a triangle
and extend this mark, from back to front,
across the top of the stabilizer. Also extend
this mark down the back of the trailing edge
of the stabilizer.
Remove the covering.
Draw center line.
2) Using a modeling knife, carefully remove
the covering at mounting slot of horizontal
stabilizer ( both side of fuselage).
3) Slide the stabilizer into place in the precut
slot in the rear of the fuselage. e stabilizer
should be pushed rmly against the front of
the slot.
When cutting through the covering to
remove it, cut with only enough pressure to
only cut through the covering itself. Cutting
into the balsa structure may weaken it.
6) Using a modeling knife, carefully remove
the covering that overlaps the stabilizer
mounting platform sides in the fuselage. Remove the covering from both the top and the
bottom of the platform sides.
7) When you are sure that everything is
aligned correctly, mix up a generous amount
of 30 Minute Epoxy. Apply a thin layer to the
top and bottom of the stabilizer mounting
area and to the stabilizer mounting platform
sides in the fuselage. Slide the stabilizer in
place and realign. Double check all of your
measurements once more before the epoxy
cures. Hold the stabilizer in place with T-pins
or masking tape and remove any excess epoxy
using a paper towel and rubbing alcohol.
4) With the stabilizer held rmly in place,
use a pen and draw lines onto the stabilizer
where it and the fuselage sides meet. Do this
on both the right and le sides and top and
bottom of the stabilizer.
Pen
5) Remove the stabilizer. Using the lines you
just drew as a guide, carefully remove the
covering from between them using a modeling knife.
Epoxy
18
Page 19
INSTALLING VERTICAL FIN.
Instruction Manual.
3) While holding the vertical stabilizer rmly in place, use a pen and draw a line on each
side of the vertical stabilizer where it meets
the top of the fuselage.
Pen
4) Remove the stabilizer. Using a modeling
knife, remove the covering from below the
lines you drew.
1) Using a modeling knife, remove the covering from over the precut hinge slot cut
into the lower rear portion of the fuselage.
2) Slide the vertical stabilizer into the slot in
the top of the fuselage. e rear edge of the
stabilizer should be ush with the rear edge
of the fuselage and the lower rudder hinge
should engage the precut hinge slot in the
lower fuselage. e bottom edge of the stabilizer should also be rmly pushed against
the top of th horizontal stabilizer.
Remove the covering.
Knife.
When cutting through the covering to re-
move it, cut with only enough pressure to only
cut through the covering itself. Cutting into
the balsa structure may weaken it.
5) Slide the vertical stabilizer back in place.
Using a triangle, check to ensure that the vertical stabilizer is aligned 90º to the horizontal
stabilizer.
Horizontal
Stabilizer.
Vertical
90º
Stabilizer.
19
Page 20
MAXI LIFT
6) When you are sure that everything is
aligned correctly, mix up a generous amount
of Flash 30 Minute Epoxy. Apply a thin layer to the mounting slot and to bottom of
the vertical stabilizer mounting area. Apply epoxy to the bottom and top edges of
the ller block and to the lower hinge also.
Set the stabilizer in place and realign. Double check all of your measurements once
more before the epoxy cures. Hold the stabilizer in place with T-pins or masking
tape and remove any excess epoxy using
a paper towel and rubbing alcohol. Allow
the epoxy to fully cure before proceeding.
Elevator control horn
3) read one clevis and M2 lock nut on to
each elevator control rod. read the horns
on until they are ush with the ends of the
control rods.
4) Elevator and rudder pushrods assembly as
pictures below.
Epoxy
ELEVATOR PUSHROD INSTALLATION.
810mm.
810mm.
820 mm
M2 clevis.
M2 clevis.
Elevator pushrod.
M2 lock nut.
M2 lock nut.
RUDDER PUSHROD INSTALLATION.
20
1) Install the elevator control horn using
the same method as with the aileron control
horns.
2) Position the elevator control horn on the
both side of elevator.
Rudder control horn
Page 21
Instruction Manual.
Crimp.
Metal connector.
Cable end.
M3 clevis.
THE TAIL WHEEL - STRUT SUPPORT.
Locate items necessary to install tail wheel.
M2 clevis.
M2 clevis.
810mm.
810mm.
185 mm
M2 lock nut.
M2 lock nut.
3x20mm
Bend at the mark.
Aluminum tail
landing gear.
21
Page 22
MAXI LIFT
Bend at the mark.
Metal clevis.
Hex nut.
Fuel tubing.
INSTALLING TAIL STRUT SUPPORT.
e tail strut system assembly follow pictures below.
810mm.
810mm.
280mm
M2 clevis.
M2 clevis.
M2 lock nut.
M2 lock nut.
Fuel tubing.
Hex nut.
Metal clevis.
22
Page 23
INSTALLATION PILOT AND CANOPY.
1) Locate items necessary to install pilot and
can opy.
Instruction Manual.
Ep ox y.
Ep ox y.
2) A scale pilot is included with this ARF.
e Pilot included tting well to the cockpit.
(or you can order others scale pilot gures
made by SG-Models.ey are available at
SG-Models distributors.)
If you are going to install a pilot gure,
please use a sanding bar to sand the base of
the gure so that it is at.
3) Position the pilot gure on the canopy
oor as show. Locate the oval shaped on the
canopy oor and remove the covering. Use
epoxy to glue this into the base of the pilot
gure and glue the cockpit panel in place
with C/A glue, please see pictures as shown.
4) Position the canopy onto the fuselage.
Trace around the canopy and onto the fuselage using a felt-tipped pen.
23
Page 24
MAXI LIFT
APPLY THE DECALS.
1) If all the decals are precut and ready to
stick. Please be certain the model is clean and
free from oily ngerprints and dust. Position
decal on the model where desired, using the
photos on the box and aid in their location.
2) If all the decals are not precut, please use
scissors or a sharp hobby knife to cut the
decals from the sheet. Please be c ertain the
model is clean and free from oily ngerprints
and dust. Position decal on the model where
desired, using the photos on the box and aid
in their location.
INSTALLING THE BATTERY-
RECEIVER.
Attach the aluminium tube into fuselage.
Wing tube.
Insert two wing panels as pictures below.
1) Plug the ve servo leads and the switch
lead into the receiver. Plug the battery pack
lead into the switch also.
2) Wrap the receiver and battery pack in the
protective foam rubber to protect them from
vibration.
3) Route the antenna in the antenna tube inside the fuselage and secure it to the bottom
of fuselage using a plastic tape.
Batter y.
24
Receiver.
ATTACHMENT WING-FUSELAGE.
Page 25
Wing bolt.
INSTALLATION WING- FUSELAGE
STRUTS.
Instruction Manual.
M3x25mm
Wing.
M3x25mm
Wing.
Fuselage.
Wing.
25
Page 26
MAXI LIFT
BALANCING.
1) It is critical that your airplane be balanced correctly. Improper balance will
cause your plane to lose control and
crash. THE CENTER OF GRAVITY IS
LOCATED 110 MM BACK FROM THE
LEADING EDGE OF THE WING AT
THE WING ROOT.
2) Mount the wing to the fuselage. Using
a couple of pieces of masking tape, place
them on the top side of the wing 110 mm
back from the leading edge of the wing at
the wing root.
With the wing attached to the fuselage, all parts of the model installed
( ready to y), and empty fuel tanks,
hold the model at the marked balance point with the stabilizer level.
Li the model. If the tail drops when you
li, the model is “tail heavy” and you
must add weight* to the nose. If the nose
drops, it is “nose heavy” and you must
add weight* to the tail to balance.
*If possible, rst attempt to balance the
model by changing the position of the receiver battery and receiver. If you are unable to obtain good balance by doing so,
then it will be necessary to add weight to
the nose or tail to achieve the
proper balance point.
110 mm
3) Turn the airplane upside down. Place
your ngers on the masking tape and
carefully li the plane .
Accurately mark the balance point on the
top of the wing on both sides of the fuselage. e balance point is located 110 mm
back from the leading edge of the wing at
the wing root. is is the balance point
at which your model should balance for
your rst ights. Later, you may wish to
experiment by shiing the balance up
to 10mm forward or back to change the
ying characteristics. Moving the balance forward may improve the smoothness and arrow- like tracking, but it may
then require more speed for take o and
make it more dicult to slow down for
landing. Moving the balance a makes
the model more agile with a lighter and
snappier ”feel”. In any case,please start at
the location we recommend .
CONTROL THROWS.
Ailerons: 12mm - 15mm up
12mm - 15mm down.
Elevator: 12mm - 15mm up.
12mm - 15mm down.
Rudder: 20mm - 30mm left.
20mm - 30mm right.
26
Page 27
Instruction Manual.
FLIGHT PREPARATION. PREFLIGHT CHECK.
Check the operation and direction of the
elevator, rudder, ailerons and throttle.
A) Plug in your radio system per the
manufacturer’s instructions and turn everything on.
B) Check the elevator rst. Pull back
on the elevator stick. e elevator halves
should move up. If it they do not, ip the
servo reversing switch on your transmitter
to change the direction.
C) Check the rudder. Looking from behind the airplane, move the rudder stick to
the right. e rudder should move to the
right. If it does not, ip the servo reversing
switch on your transmitter to change the
direction.
D) Check the throttle. Moving the throttle stick forward should open the carburetor barrel. If it does not, ip the servo
reversing switch on your transmitter to
change the direction.
E) From behind the airplane, look at the
aileron on the right wing half. Move the
aileron stick to the right. e right aileron should move up and the other aileron
should move down. If it does not, ip the
servo reversing switch on your transmitter
to change the direction.
1) Completely charge your transmitter and
receiver batteries before your rst day of ying.
2) Check every bolt and every glue joint in
the MAXI LIFT to ensure that everything is
tight and well bonded.
3) Double check the balance of the air-
plane. Do this with the fuel tank empty.
4) Check the control surfaces. All should
move in the correct direction and not bind
in any way.
5) If your radio transmitter is equipped
with dual rate switches double check that
they are on the low rate setting for your rst
few ights.
6) Check to ensure the control surfaces are
moving the proper amount for both low and
high rate settings.
7) Check the receiver antenna. It should be
fully extended and not coiled up inside the
fuselage.
8) Properly balance the propeller. An out of
balance propeller will cause excessive vibration which could lead to engine and/or airframe failure.
We wish you many safe and enjoyable ights
with your MAXI LIFT.
27
Loading...