Creative Engineering ROCK-A-FIRE EXPLOSION - Page 96

326 pages

Save Page as PDF

To Next Page

To Next Page

To Previous Page

To Previous Page

Loading...

The

Arms

and

Shoulders

Description:

The

following

text

deals

with

the

Arms

and

movements

there

in,

Arm

Raise,

Arm

Twist,

Arm

Swing,

Elbow

Twist,

Elbows,

and

Wrist

movements.

There

are

drawings

at

the

back

of

the

text

dealing

with

the

movements

included,

use

these

drawings

for

reference

only.

Critical

adjustments

will

vary

with

each

character,

so

after

doing

any

repair

work

refer

to

Pages

3-094

thru

3-135

and

set

the

Critical

Adjustments.

All

part

numbers

are

available

in

the

Parts

Catalog.

A.

The

Arm

Raise

mechanisms

used

in

the

show

are

very

simple.

The

rear

end

of

a

cylinder

is

attached

to

the

chest

using

a

Collar

Pin

and

Shaft

Collars.

The

front

mount

is

attached

to

the

shoulder

using

a

Collar

Pin

and

Shaft

Collars.

The

only

change

to

take

place

in

this

movement

is

the

Collar

Pin,

where

the

length

of

the

collar

is

extended

to

cut

down

on

breakage.

1.

If

the

front

or

rear

mount

pins

break,

note

the

hole

on

the

chest

where

the

pin

is

attached.

2.

Remove

the

broken

pin

from

the

chest

or

shoulder,

and

remove

the

cylinder

from

the

frame.

Do

not

detach

the

cylinder

from

the

air

lines.

3.

Refer

to

the

Rock-A-fire

Explosion

Parts

Catalog

and

replace

the

pin,

tighten

the

pin

up

firmly.

4.

Re-attach

the

cylinder

to

the

shoulder

and

chest

using

the

Shaft

Collars

removed

in

step

2.

5.

Check

and

set

the

critical

adjustment

related

to

the

movement.

6.

Check

the

shoulder

hinge

for

a

smooth

easy

movement.(If

defective

refer

to

Pages

3-032

thru

3-041

Hinges)

B.

There

are

2

types

of

Arm

Twist

movements

used

in

the

show;

a

large

shoulder

and

small

shoulder.

The

difference

between

the

two

is

only

in

the

size

of

the

parts

used.

All

of

the

instructions

below

apply

to

both

size

shoulders.

See

the

"Parts

Catalog"

for

sizes

and

part

numbers

applied

to

the

shoulder

you

are

working

on.

(See

Drawing

Page

3-065)

The

arm

is

attached

to

the

mount

block

(D)

using

1/4"-20

x 1

1/2"

Bolts.

If

the

holes

in

the

aluminum

upper

arm

become

disfigured

or

enlarged,

assemble

the

upper

arm

box

to

the

mount

block

(D)

using

oversized

washers,

tighten

the

bolts

firmly.

If

the

mount

holes

in

the

aluminum

upper

arm

are

damaged

beyond

use,

replace

the

upper

arm.

3-059