1)
Slide the fiberglass cowl over the engine and line up
the back edge of the cowl with the marks you made on
the fuselage.
2)
While keeping the back edge of the cowl flush with
the marks, align the front of the cowl with the crankshaft
of the engine. The front of the cowl should be positioned
so the crankshaft is in
nearly
the middle of the cowl
opening. Hold the cowl firmly in place using pieces of
masking tape.
3)
Slide the cowl back over the engine and secure it in
place using four wood screws. See picture below.
4)
Install the muffler and muffler extension onto the
engine and make the cutout in the cowl for muffler
clearance. Connect the fuel and pressure lines to the
carburetor, muffler and fuel filler valve.
Drill four 2.5mm pilot holes through both the cowl and
the side edges of the firewall. Using a 3mm drill bit,
enlarge the four holes in the cowling.
Cowl area cutout
for muf?er
* Install one adjustable metal connector through
the third hole out from the center of one servo arm,
enlarge the hole in the servo arm using a 2mm drill
bit to accommodate the servo connector. Remove
the excess material from the arm.
After installing the adjustable metal connector
apply a small drop of thin C/A to the bottom
nut. This will prevent the connector from
loosening
during flight.
6. COWLING
7. INSTALLING MAIN GEAR
BUCKER BU 131 JUNGMANN
Item code: BH160
3 x 12mm Screw
- - - - - 4
4mm Colar
4mm Colar
Spring
Threadlocker
5x40mm
5.2mm
Colar
5mm
Washer
5mm
Nut
5mm
Nut
5mm Washer
- - - - - - - 4
4mm Spring Washer
- - - - - - - 6
5 x 40mm Cap Screw
- - 2
- - -
- - 4
- - - - -
5mm Nut
- - 4
- - - - -
4mm Colar
4 x 6mm Button Screw
- - 4
- - - - - -
Spring
- - 1
- - - -
4 x 15mm Cap Screw
- - 6
- - - - -
- - 2
- - - - -
5.2mm Colar
4mm Washer
- - - - - - - 6
100mm Wheels.
- - 2
- - - - - -
9
Drill two holes 2.5mm
on the right side
and secure
3x12mm.
Also as the same procedure for the left side.
7
FUEL TANK
Connector
Servo arm
Throttle servo
Throttle pushrod
Secure
Cut
Fuselage top side
