Manual Multiplex Easyglider Pro 21 4226 (page 12 of 52) (English, German, French, Italian, Spanish)

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Important note

This model is not made of styrofoam™, and it is

not possible

to glue the material using white glue or epoxy. Please be

sure to use cyano-acrylate glue exclusively, preferably in

conjunction with cyano activator (”kicker”). We recommend

medium-viscosity (thick) cyano. This is the procedure with

Elapor®: spray cyano activator on one face of the joint; allow

it to air-dry for around two minutes until the surface

appears to be “dry”, then apply cyano adhesive to the other

face. Join the parts, and

immediately position them

accurately.

Please take care when handling cyano-acrylate adhesives.

These materials harden in seconds, so don’t get them on

your fingers or other parts of the body. We strongly

recommend the use of goggles to protect your eyes.

Keep the adhesive out of the reach of children!

1. Before starting construction

Please check the contents of your kit before you start

construction. You will find Figs. 1 + 2 and the Parts List helpful

here.

Completing the fuselage and tail panels

2. Preparing the “snakes”

Check the length of the elevator snake sleeves 43 and 45, and

shorten them if necessary.

43 3 / 2 Ø x 785 mm

45 2 / 1 Ø x 850 mm

Steel 41 0.8 Ø x 875 mm, insert!

Repeat the procedure with the rudder snake sleeves 44 and

46.

44 3 / 2 Ø x 785 mm

46 2 / 1 Ø x 850 mm

Steel 42 0.8 Ø x 875 mm, insert!

Aerial sleeve 47 3/2 Ø x 785 mm (shorten if

necessary)

3. Installing the snakes in the fuselage shells

Important: the fuselage tail boom is considerably

strengthened and stiffened by the addition of the snake outer

sleeves 43 and 44, which must be glued full-length to the

shells in order to obtain the full effect. The same applies to the

aerial sleeve 47.

Check that the snakes operate smoothly and freely, and take

care not to allow glue to run into the outer sleeves.

Left-hand fuselage shell:

Install the complete elevator snake (wire rod length = 875

mm) in the left-hand fuselage shell; the pre-formed end

should be at the front (servo end).

Fig. 3

Position the snake outer sleeve 43 flush at the front of the

fuselage shell, as shown in Fig. 4. Lay the shell down flat and

run cyano along the whole length of the outer sleeve 43 and

the channel in the fuselage to glue the parts together strongly.

Fig. 5

Right-hand fuselage shell:

Install the complete rudder snake (wire rod length = 875mm)

in the right-hand fuselage shell. The pre-formed end should

be at the front (servo end).

Fig. 6

Position the snake outer sleeve 44 flush at the front of the

fuselage shell, as shown in Fig. 7. Lay the shell down flat

(note the locating spigot; place the fuselage shell over the

corner of the table) and run cyano along the whole length of

the outer sleeve 44 and the channel in the fuselage to glue the

parts together strongly.

Fig. 8

4. Installing the aerial sleeve

Trial-fit the aerial sleeve 47, cut it to length and glue it in the

right-hand fuselage shell - taking care not to bend or distort

the moulding.

Fig. 9

5. Installing the tow-hook

Glider version: glue the towhook 32 in the moulded recess in

the fuselage shell 4.

Fig. 9

6. Installing the motor mount

Glue the motor mount 34 in the right-hand fuselage shell, and

wipe away any adhesive which is squeezed out. The exposed

face of the motor mount will later be glued when the shells are

joined; take care to keep adhesive off this area. Note that the

motor mount should also be installed in the glider version, as

it adds considerable strength.

Fig. 10

7. Installing the servos in the fuselage shells

Set the servos to “neutral” (centre) from the transmitter, and fit

them in the moulded recesses in the left and right fuselage

shells, as shown in Fig. 11. If you are using different servos,

you may have to trim the recesses slightly to obtain a close fit.

Lay the servo leads in the channel, running from bottom to top,

and tape them in place. Apply a drop of cyano to the servo lugs to

attach them to the foam material. Connect the pre-formed ends

of the wire pushrods to the servo output arms, and push the

arms onto the servos at an angle of 90° to the servo sides (don’t

forget to fit the servo output screws). Glue the plastic latch catches

22 in both fuselage sides as shown. Glue the extension leads in

the cable holders

36, positioning the ends flush as shown in the

detail drawing. Glue the cable holders 36 in the moulded

recesses in both fuselage sides, pushing them in as far as they

will go. Deploy the leads carefully and glue the fore-and-aft

formers 37 in place.

Fig. 11

8. Joining the fuselage shells

The most suitable adhesive for this stage is thick cyano-acrylate,

used in conjunction with activator.

Caution: for the tuning version the balance weights 2 x 33 should

first be glued in the recesses at the tail, as shown in Fig. 12.

The first step is to check “dry” (no glue) that the fuselage shells

3 + 4 fit together accurately; it may be necessary to carry out

minor trimming.

Spray cyano activator on the joint surfaces of the fuselage shell

4 and leave it to air-dry for about two minutes.

Apply cyano adhesive to the joint surfaces of the fuselage shell

3, then join the parts carefully, taking care to align them accurately

and immediately. Note that the fuselage joint line must be

perfectly straight - no bends allowed!

Fig. 12

9. Installing the rudder hinge

Glue the rudder hinge 31 in the tail end of the fuselage using a

small amount of cyano. Take great care that no glue gets onto

the hinge pivot axis.

Fig. 13

Use a sharp balsa knife to cut a central slot for the rudder hinge

31 in the leading edge of the rudder. Take care: injury hazard!

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Multiplex Easyglider Pro 21 4226 Manual

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