Creative Engineering ROCK-A-FIRE EXPLOSION - Page 106

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The

Legs

and

Pelvis

Description:

The

following

text

deals

with

the

legs

and

hip

movements,

Body

Lean,

Body

Turn,

Foot

Tap,

Leg

Kick

and

Spring

Plate

assembly.

There

are

drawings

in

the

back

of

the

text

depicting

the

movements.

Use

these

drawings

for

reference

only.

Critical

adjustments

on

each

character

may

vary

with

each

character,

so

after

any

repair

work

refer

to

Pages

3-094

thru

3-135

and

set

the

Critical

Adjustments.

A.

There

are

two

types

of

Body

Lean

movements

used

in

the

show.

One

is

the

non-body

twisting

type

used

by

Dook,

Beach

Bear

and

Fatz,

in

this

type

the

Body

Lean's

cylinder

rear

mount

is

welded

to

the

leg

frame.

Two

is

the

body

twisting

type

used

by

Billy

Bob,

Mitzi

and

Rolfe.

In

this

type

a

"clamp

on"

Body

Lean

cylinder

rear

mount

is

used.

The Body

Lean's

front

cylinder

mount

is

typical

to

all

the

characters.

1.

The

non-body

twisting

type

of

Body

Lean

movement

is

simple

and

has

few

problems.

The

front

and

rear

mounts

of

the

Body

Lean

cylinder

are

attached

using

Fas-Pins.

For

any

broken

welds

in

the

front

replace

the

part.

If

the

weld

breaks

at

the

rear

mount

replacement

of

the

leg

frame

is

required,

numbers

are

available

in

the

Parts

Catalog.

If

you

have

a

problem

in

the

pelvis

hinge,

refer

to

Pages

3-032

thru

3-041,

Hinges.

For

any

problems

in

the

Body

Lean

cylinder,

refer

to

Pages

3-009

thru

3-011,

and

all

drawings

referred

to

by

that

text.

The

rear

cylinder

mount

Fas-Pin

is

held

into

the

rear

mount

block

using

set

screws.

The

set

screws

must

be

kept

tight,

if

they

are

not,

the

Fas-Pin

will

move

back

and

forth

inside

the

hole

and

the

hole

will

elongate.

If

this

happens,

replacement

of

the

leg

frame

is

required.

If

the

set

screws

holes

become

enlarged

or

the

threads

pull

out,

drill

and

tap the

holes

to

the

next

larger

size

of

set

screw

(5/16"-18

Tap).

a.

Remove

the

rear

mount

of

the

cylinder

from

the

block,

support

the

body

by

placing

two

pieces

of

metal

and

a

clamp

at

the

pelvis

hinge.

b.

Drill

out

the

holes

using

a

1/4"

drill.

c.

Tap

the

holes

using

a

5/16"-18

Tap.

d.

Re-attach

the

cylinder's

rear

mount

and

the

new

set

screws,

set

the

critical

adjustment.

3-Q69