Creative Engineering ROCK-A-FIRE EXPLOSION - Page 45

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Problems

and

Repair

Step

by

Step

Description

Cont.:

3.

Disassembly

of

the

Valve

Bank

should

only

be

attempted

after

exhausting

all

other

methods

to

repair.

a.

In

the

valve

bank

there

is

a

gasket

between

each

valve.

Very

carefully,

unscrew

the

2

Allen

Head

screws

and

remove

the

end

cap.

b.

Pull

off

as

large

a

section

of

valves

as

,

possible

without

breaking

the

seal

between

them,

by

slipping

a

small

screwdriver

between

the

valves

and

prying

them

apart.

Only

separate

the

valves

far

enough

to

replace

the

seal

or

the

bad

valve.

(Be

careful

you

do

not

damage

the

gasket

or

the

valve

walls)

c.

Replace

the

bad

valv~

or

leaky

gasket.

Always

apply

a

small

amount

of

grease

to

the

gasket,

before

reassembly.

d.

Reassemble

the

valve

bank

by

attaching

the

end

cap

and

2

Allen

Head

screws.

Tighten

down

the

screws

equally,

snuggling

down

one,

then

the

other,

and

tightening

the

rest

of

the

way,

working

back

and

forth

between

the

screws.

Step

G.

The

Flow

Control

(Refer

to

Drawing

Page

3-016)

1.

First,

double

check

yourself

by

pulling

the

line

coming

out

of

it,

and

turning

the

adjustment

screw

(B) ,

the

air

flow

should

be

affected,

remember

the

Flow

Control

will

only

affect

the

air

flowing

in

the

direction

of

the

arrow.

2.

If

the

air

flow

is

not

affected

when

you

adjust

the

Flow

Control,

replace

it.

Always

replace

a

Flow

Control

with

the

arrow

pointing

in

the

same

direction

as

the

old

one.

(Remember

"When

in

doubt,

Meter

Out")

3-008