17.
q
Check the maximum control movements (with trim) in each direction as you did for the
swashplate. You want as much tail rotor control throw as possible without stalling the
servo. If the servo stalls, adjust the transmitter ATV dials (on Hitec radios), reduce the
servo arm radius, or move the pushrod clevis to the outer hole on the tail rotor bellcrank
(the effects are the same).
18.
q
To double-check tail rotor control direction, move the tail rotor control stick on the
transmitter, and watch the tail rotor pushrod. Right and left stick motion should move the
pushrod forward and backward respectively. If the tail rotor control is backward, flip the
appropriate servo reversing switch on the transmitter
19.
q
The final control to hook up is the throttle (you are almost done!). Select a servo wheel
with holes at a radius of .27" to .35” (7mm to 9mm), and trim off all but one arm.
20.
q
Slide the throttle pushrod forward through the throttle hole in the firewall and into the
appropriate hole in the servo wheel. Make sure the throttle stick and trim on the
transmitter are still in the full low position, and mount the servo wheel arm to the throttle
servo at about 45 degrees from vertical as shown in Fig. 14-4.
21.
q
Slide the
Vmax-6
throttle/muffler onto the throttle valve and secure the throttle/muffler to
the engine with the muffler strap, 4-40 x 1-1/4" bolts and threadlock as shown in Fig.
14-7. Screw the bolts completely through the muffler chamber and tighten them against
the opposite inside wall.
Construction Manual
Pushrods and Radio Adjustment
14-8
LITE MACHINES
Strap curved
inward
Vmax-6 engine
Throttle/muffler
Muffler strap
4-40 x 1-1/4” bolts
Threadlock
( use sparingly )
Throttle tube
Throttle valve
Throttle pushrod
Figure 14-7.
