Creative Engineering ROCK-A-FIRE EXPLOSION - Page 98

326 pages

Save Page as PDF

To Next Page

To Next Page

To Previous Page

To Previous Page

Loading...

The Arms

and

Shoulders

Cont.

3.

Check

the

bushings

in

the

Twist

Blocks

(C),

look

for

brass

chips

or

powder,

if

they

are

badly

worn

replace

them.

a.

Drill

out

the

old

bushing

using

either

a

39/64"

drill,

for

the

1/2"

I.D.

x

5/8"

O.D. x

1/2"

long

Flange

Bushing

(Part

#28-030-070)

used

in

the

small

shoulder,

or

a

47/64"

drill,

for

the

5/8"

I.D.

x

3/4"

0.0.

x

3/4"

long

Flange

Bush~ng

(Part

#28-030-085)

used

in

the

large

shoulder.

Hold

the

drill

as

square

as

possible

to

the

hole

and

drill

through

the

bushing.

You may

need

to

break

out

small

pieces

of

the

bushing

using

a

small

pin

or

Awl.

b.

Press

in

the

new

bushing

using

an

Arbor

Press.

If

one

is

not

available,

place

a

piece

of

wood

on

top

of

the

bushing

and

tap

it

in,

using

a hammer.

If

the

hole

is

over

size,

mar

the

inside

of

the

hole

using

a Awl.

If

after

marring

the

hole,

you

still

cannot

press

in

the

bushing,

the

Twist

Block

(C)

must

be

replaced.

4.

Replace

any

bad

parts

and

re-assemble

the

shoulder.

a.

If

new

bushings

were

pressed

in,

ream

them

using

a Hand

Ream.

b.

Loosen

and

tighten

the

Twist

Blocks

(C)

to

the

K-Hinge

to

help

align

the

Twist

Shaft

(B).

c.

Grease

the

bushings

with

black

(C.E.I.)

lube

before

assembly.

5.

Set

the

critical

adjustment

of

the

arm

mount

block

(D),

and

re-attach

the

shoulder

to

the

character,

using

all

the

hardware

previously

removed.

6.

Check

all

critical

adjustments

applied

to

the

removed

arm,

The arm

twist

may

need

adjusting

after

reassembly,

if

time

allows

refer

to

Pages

1-010

thru

1-014,

Video

Testing

Procedures.

E.

The

Arm

Swing

movement

is

only

used

by

Fatz

and

Dook,

the

movement

is

simple

and

has

few

recorded

problems.

In

the

Arm

Swing

movement

the

rear

end

of

a

cylinder

is

attached

to

the

welded

leg

frame,

via

a

Collar

Pin.

The

front

mount

is

attached

to

the

arm

swing

hinge,

via

a

welded

mount

block.

1.

If

the

weld

breaks

at

the

front

mount

block,

replacement

of

the

upper

arm

is

required.

2.

If

the

rear

cylinder

mount

Collar

Pin

breaks,

replace

it.

3.

For

any

problems

in

the

cylinder,

see

Pages

3-009

thru

3-0ll,

and

all

drawings

referred

to

by

that

text.

3-Q61