GREAT PLANES YAK-55M Yakovlev, Instruction Manual

Page: 10 / 20

10
❏ ❏
3. Install a 4mm wheel collar on the axle, then the
foam main wheel , followed by a second 4mm wheel collar.
Secure the wheel collars on the axle with 3mm set screws .
Mark the location where the set screw, in the outer wheel
collar, tightens on the axle and use a metal cutting file to file
a flat spot on the axle. Apply a drop of thread locker on the
set screws and reinstall the wheel collars on the axle.
❏ ❏
4. Attach the main landing gear to the fuselage with
three 4-40 x 1/2" SHC screws , #4 lock washers and #4 flat
washers . Before installing, apply threadlocker to the threads
of the SHC screws.
❏
5. Repeat steps 1-4 for the left main landing gear.
Install the Motor
The Yak-55M EP has been designed to use the Great Planes
RimFire .32 Outrunner Brushless motor. If you will be installing a
different motor, you may need to modify the plywood
motor box .
❏
1. Install the RimFire motor using four 4-40 x 1/2" [12.7mm]
SHC screws, four #4 lock washers and four #4 flat washers.
Before installing, apply a drop of threadlocker to the threads
of the SHC screws.
❏
2. Attach a 9" [229mm] servo extension to the ESC.
Connect the ESC to the motor. The ESC can be attached
to the side of the motor box with adhesive-backed hook and
loop material.
❏
3. Use a sharp hobby knife to trim the covering from over
the cooling air exit hole in the bottom of the fuselage.