Assemb le and install wheel pants – Top Flite TOPA0300 User Manual

Page 45

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4. T

ape the Co

wl on the front of the fuse

.

Extend the center

lines y

ou dre

w in step 2

forw

ard to the line on the Co

wl. Dr

ill 1/16” pilot

holes into the Co

wl Mounting Bloc

ks at each

intersection. Remo

v

e

the Co

wl and enlarge the

holes in

onl

y the Co

wl
to 3/32”.

5. Install the needle v

alv
e

. If y

ou will be using

a 4-strok

e engine

, install the chok

e control wire

as w

e

ll.

6. Use thin cardstoc

k or a file f

older to mak

e

location templates

as sho

wn in the photo

. In

the case of a 2-strok

e engine y

ou will need

templates f

o

r the glo

w plug access

, needle v

alv
e

and m

u

ffler e

xhaust. Larger 4-strok

e engines will

also require a template f

or the cylinder head and

chok

e b

u

tton. T

ape these securely to the fuse

behind F-1.

7. Remo

v

e

the control e

xtensions (and 4-

strok

e engine if that is what y

ou ha

v

e

chosen) b

u

t

lea

v

e the templates in place

. Slide the co

wl

under the templates and f

asten in position with

#2 x 3/8” sheet metal scre

ws
. Use a pen to tr

ace

the openings on the co

wl. Remo

v

e

the co

wl, then

use a Moto-T

ool and g

rinding stone (or po

w

e

r

dr

ill and a round file) to cut the openings

.

8. Put the engine bac

k on the mount with a

couple of scre

ws
, then chec

k the fit of the co

wl

openings

. Mak

e adjustments as necessar

y,

a

little at a time

.

9. Dr

ill a 3/8” hole in the co

wl betw

een F-1

and the engine’

s carb to install an optional fuel

filler v

alv
e (GPMQ4160).

❏❏

1. T

rim the upper and lo

w

e

r

Wheel P

ants

to

the cut lines

. Sand the edges smooth with 150-

g

rit sandpaper

.

❏❏

2. P

osition a Main Landing Gear str

ut in the

recessed por

tion of the lo

w

er section of the

Wheel P

ant,

5/16” abo

ve the bottom edg

e

.

Mar

k the axle hole through the Landing Gear

.

❏❏

3. Dr

ill a

3/16”

hole through the mar

k

y

o

u

just made and also through the

inde

x mark

on

the 1/16” die-cut birch ply

Axle Suppor

t.

❏❏

4. Glue the 1/8” die-cut balsa

Wheel P

ant

Spacer

s

to the ply Axle Suppor

t as sho

wn. T

est

fit the suppor

t assemb

ly inside the Wheel P

ant,

then sand the balsa Spacers to match the

contours of the Wheel P

ant.

❏❏

5. T

o

align the suppor

t assemb

ly

, inser

t the

8-32 x 1-1/2”

Axle Bolt

through the hole in the

Wheel P

ant. Slide the suppor

t assemb

ly onto

the bolt and glue it in position to the inside of the

Wheel P

ant with medium CA.

Assemb

le and install wheel pants

45

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