Stage 2
2.1
Completing the tail boom
- Fit the pushrod guide S5106 and holder S5096 on the tail
boom; note the position of the slot.
2.2
Assembling the tail boom support bracket, tail
boom and platforms
- Install the front platform S5171 and the rear platform
S5081 in the chassis.
- Press the tail boom support bracket S5057 into the chas-
sis, and fit the screw S3370 to secure it.
- Slide the front (slotted) end of the tail boom into the tail
boom support bracket as far as it will go.
- Clamp the tail boom in the tail boom support bracket using
the screw S3370 and the washer S4366.
2.3
Installing the electric motor
- Read the instructions supplied with your choice of electric
motor before carrying out the following stage.
- Note: if you are using a motor other than the recommen-
ded type, please note that alternative pinions with different
tooth counts are available.
- Fit the 16-tooth pinion S5187 on the output shaft of the
electric motor, but do not tighten the screw fully.
- Place the motor on the chassis.
- Adjust the position of the 16-tooth pinion so that it meshes
over the full depth of the teeth with the 60-tooth gear
S5084.
- Tighten the retaining screw in the 16-tooth pinion.
- Adjust the lateral position of the electric motor to obtain
minimal play between the two meshing gears.
- Note: when selecting the mounting screws for the elec-
tric motor check that they do not protrude too far into
the motor case.
- Tighten the motor retaining screws.
2.4
Installing the landing skid supports
- Place the battery holders S5153 on the underside of the
chassis and slide them together until the clips engage.
- The four skid support components which constitute the
skid support S5095 are marked V1, V2, H3 and H4. Note:
V = front, H = rear.
Assembly instructions
Spirit Pro
- Fix these parts to the chassis using the screws S0116 and
washers S4366.
2.5
Installing the skid landing gear
- Assemble all the undercarriage parts as shown, and glue
them together using ropoxi, No. 5066.
Stage 3
3.1
Installing the swashplate guide and servo
mounts
- Remove the swashplate guide S5082 from the „servo
mount" injection moulding S5082, and press it into the
upper servo mount.
- Fix the linkage ball S3150 to the swashplate guide using
the screw S0114.
- Slide the top and bottom servo mounts onto the rotor
shaft pivot bracket.
3.2
Installing the swashplate servos
- Set the three swashplate servos to centre from the trans-
mitter.
- Cut down the servo output devices as shown in the dra-
wing, leaving a single arm. Ensure that the arms are moun-
ted on the servos exactly at right-angles.
Tip: most makes of servo feature a splined output shaft.
This means that you can re-position the output device at
90º intervals and select the position which is (almost)
exactly at right-angles to the servo case. Do this before
cutting down the output arms.
- Fit the output arms on the servos.
- Screw the servos to the servo mounts using the plastic
oval washers included on the „servo mount" injection
moulding S5082.
3.3
Installing the swashplate pushrods and the
swashplate driver
- Screw the ball-links S5043 and the clevises S0059 onto
the pushrods S5037. Set the 19 mm dimension as shown
in the drawing.
- Press the ball-links on the prepared pushrods onto the lin-
kage balls on the outer ring of the swashplate S5004.
Note: when pressing the ball-links onto the linkage balls
note the position of the raised marker lug on the links; the
lug must always be on the outside of the joint.
5
- Slide the swashplate onto the main rotor shaft and enga-
ge the spigot in the swashplate guide.
- Connect the clevises to the servo output arms, using a
lever length of 13.5 mm.
- Assemble the clamp S5042 and the driver yoke S5105
using the screws S0028 and S0029 to produce the swas-
hplate driver. Slip this assembly on the main rotor shaft
and press the ball-link S5090 onto the „middle" ball on the
swashplate inner ring. Check that the parts move freely.
Caution: the threaded hole in part S5042 must be located
above the centre of the parts.
Stage 4
4
Assembling the rotor head and transverse shaft
- Slide the blade pivot shaft S5051 through the centre piece
S5049 and fit the additional parts on both ends of the shaft
exactly as shown in the drawing.
Note: it is absolutely essential to orientate the axial bea-
rings S3364 correctly, i.e. the 4 mm I.D. disc must face the
blade holder S50761.
- Install the transverse shaft S5086 in the centre piece.
Stage 5
5.1
Assembling the flybar and
collective pitch compensator
- Slide the flybar S5021 through the transverse shaft, set it
central, and grease it lightly where it contacts the trans-
verse shaft.
- Fit the additional parts to the collective pitch compensator
hub S5087 as shown. Fix the collective pitch compensa-
tor arms S5088 to the collective pitch compensator shaft
S5089 by tightening the grubscrews S0041 onto the
machined flats. Check that the parts move freely.
- Slide the collective pitch compensator and the ball collet
S5085 onto the flybar, and tighten the grubscrew S0041 to
secure it. There must be no slop in this assembly.
5.2
Assembling the mixer levers,
completing the flybar
- Attach the mixer levers S5168 to the blade holders. Check
that the parts move freely.
Order No.
S 2871