Bird Microblender 3800 User manual

E

EEE

3800

MicroBlender

000

SZ

ООН

4/98

Service

Mianual

ORDERING

INFORMATION

Contact

your

Bird

Products

Corporation

Dealer

or

Bird

Products

Corporation

Customer

Service

Department

directly:

1100

Bird

Center

Drive

|

Palm

Springs,

CA

92262

(760)

778-7200

or

(800)

328-4139

TLX:

9103805605

Fax:

(760)

778-7274

O

1995

Bird

Products

Corporation

TECHNICAL

INFORMATION

Contact

Bird

Products

Corporation

Technical

Services

Department

directly:

1100

Bird

Center

Drive

Palm

Springs,

CA

92262

(760)

778-7200

or

BIRD

HELPLINE:

(800)

934-BIRD

[(800)

934-2473]

EŞ,

ae

B

Bird

Products

Corporation

1100

Bird

Center

Drive,

Palm

Springs,

CA

92262

(760)

778-7200

yy

TLX:

9103805605

(800)

328-4139

yy

FAX:

(760)

778-7274

TABLE

OF

CONTENTS

SECTION

1:

Oo

Överiew

Of

The3800MicroBlenderOperation....................................

1

SECTION

2:

Warnings,

Cautions

and

Notes

nene

4

SECTION

3:

Troubleshooting

een

6

SECTION

4:

Serice,RepairandCalibration..........................................

em

9

SECTION

5:

PerformanceClheck.........................................

1.

eee

32

SECTION

6:

CleaningandsSterilization...............................................

33

SECTION

7:

Maintenance

and

Service

Policy

ss

34

SECTION

8:

Replacement

Parts

eee

35

SECTION

9:

Product

Specifications

.ee

38

SECTION

10:

Warranty

4

40

NOTE:

This

manual

is

intended

as

a

guide

for

the

service/repair

calibration

of

the

3800

MicroBlender

by

a

qualified

technician.

SECTION

1:

OVERVIEW

OF

THE

3800

MICROBLENDER

OPERATION

August,

1991

The

3800

MicroBlender

mixes

medical

grade

compressed

air

and

oxygen

to

provide

a

pressurized

gas

source

ranging

from

21%

to

100%

oxygen.

Figure

1

The

two

50

+

5

PSIG

(3.52

+

0.35

kg/cm?)

gas

sources

enter

through

the

diameter

indexed

(DISS)

air

and

oxygen

inlet

connectors

located

on the

bottom,

rear

of

the

blender

(Fig.

2).

Each

inlet

connector

incorporates

a

30

micron

particulate

filter.

After

being

filtered,

the

gases

travel

through

duckbill

check

valves

which

prevent

possible

reverse

gas

flow

to

either

the

air

or

oxygen

supply

systems.

Figure

2

m

BALANCE

MODULE

(FIGURE

3)

The

two

gases

then

enter

the

two-stage

Balance

Module.

The

purpose

of

this

mod-

ule

is

to

equalize

the

operating

pressure

of

the

air

and

oxygen

gas

sources

before

entering

the

Proportioning

Module.

The

diaphragm

responds

to

the

difference

in

pressure

and

directs

the

movement

(stroke)

of

each

ball

valve

assembly

contained

within

the

air

and

oxygen

chambers.

The

movement

of

each

bail

valve

adjusts

the

amount

of

gas

flowing

through

the

Balance

Module,

equalizing

the

air

and

oxygen

pressures

to

the

lower

of

the

two

pressures.

MODULES

BALANCE

MODULE

PROPOR-

TIONING

MODULE

ALARM

BYPASS

|

GAS

SUPPLY

PROPORTIONING/BLEED

SECTION

Figure

3,

Bird

Air-Oxygen

Blender

Diagram

m

PROPORTIONING

MODULE

(FIGURE

4)

From

the

Balance

Module

the

gases

flow

into

the

Proportioning

Module

and

are

mixed

according

to

the

oxygen

percentage

selected

on

the

external

control

knob.

This

Module

consists

of

a

double

ended

valve

positioned

between

two

vaive

seats.

一

1

一

OVERVIEW

OF

THE

3800

MICROBLENDER

OPERATION

One

valve

seat

controls

the

passage

of

air

and

the

other

valve

seat

controls

the

pas-

sage

of

oxygen

into

the

MicroBlender

outlet.

At

this

point,

the

two

gases

have

been

blended

according

to

the

oxygen

percentage

selected

on

the

MicroBlender

control

knob.

Αι

"OUTLET

45

PSI

50%

O,

Figure

4

With

the

control

knob

at

the

full

counter-

clockwise

position

(21%),

the

double

ended

valve

will

completely

close

off

the

flow

of

oxygen,

allowing

only

the

air

to

flow.

By

adjusting

the

control

knob

in

the

full

clock-

wise

(100%)

position

the

flow

of

air

is

blocked,

permitting

only

the

flow

of

oxygen

through

the

blender

outlet.

m

ALARM/BYPASS

(FIGURE

5)

The

alarm

feature

provides

for

an

audible

alarm

if

source

pressures

differ

by

20

PSI

(1.41

kg/cm?)

or

more.

The

primary

purpose

of

the

alarm

is

to

audibly

warn

the

operator

of

an

excessive

pressure

drop

or

depletion

of

either

source

gas.

The

alarm

will

also

activate

in

the

event

of

elevation

of

either

source

gas

when

a

difference

of

20

PSI

(1.41

kg/cm?)

or

more

is

detected.

Should

both

gas

pressures

(oxygen

or

medical

air)

increase

or

decrease

simulta-

neously,

and

a

20

PSI

(1.41

kg/cm?)

differ-

ential

is

not

seen,

there

will

not

be

an

au-

dible

alarm.

If

either

source

gas

pressure

drops,

the

output

pressure

of

the

blender

will

drop

similarly,

since

the

source

gases

are

always

balanced

to

that

of

the

lower

pressure.

The

bypass

function

operates

in

unison

with

the

alarm.

The

alarm

bypass

poppet

com-

municates

directly

with

the

air

supply

on

one

end

and

the

oxygen

supply

on

the

other.

TT

Y

©

|

_

©

À

\

O

ry

“A

è

13

A

=

η

D

\

СС

Ars

Е:

(Gz:

ES7

O,

OPS!

ALARM

AIR

50PSI

AIR

Figure

5

When

the

two

source

gases

are

near

equal

in

pressure,

the

alarm

bypass

poppet

is

posi-

tioned

over

the

bypass

channel,

blocking

the

flow

of

both

gases.

The

poppet

will

remain

seated

for

unequal

pressures

up

to

20

PSI

(1.41

kg/cm’).

Once

a

20

PSI

(1.41

kg/cm?)

difference

is

sensed

by

the

poppet,

the

higher

gas

pressure

will

overcome

the

spring

force

and

pressure

at

its

opposite

end,

thus

creating

a

path

for

gas

(air

or

oxygen)

to

flow

into

the

alarm

channel.

一

2

一

The

gas

with

the

higher

pressure

will

also

flow

directly

to

the

blender

outlet

port

bypassing

the

Balance

and

Proportioning

Modules.

The

gas

is

also

directed

to

the

bottom

of

the

unit

to

the

reed

alarm,

thus

creating

an

audible

warning.

The

oxygen

concentration

will

be

that

of

the

gas

at

the

higher

pressure.

The

blender

in

the

alarm/bypass

mode

will

deliver

the

oxygen

(100%)

or

air

(21%)

until

the

bypass

mechanism

resets

when

source

gas

pressure

is

restored

to

a

differential

of

ap-

proximately

6

PSI

(0.42

kg/cm’).

Some

characteristics

of

the

alarm/bypass

system

on the

MicroBlender

differ

somewhat

from

those

of

model

3300

and

other

model

blenders.

If

the

MicroBlender

is

set

at

21%

and

the

OXYGEN

source

pressure

is

reduced

suffi-

ciently

to

produce

a

20

PSI

(1.41

kg/cm?)

or

greater

differential,

the

unit

will

not

alarm

because

it

will

continue

to

deliver

21%

con-

centration

according

to

the

setting.

If

the

control

is

moved

slightly

from

the

21%

setting,

the

alarm

will

sound.

Similarly,

if

the

MicroBlender

is

set

to

deliver

100%

concentration

and

AIR

source

pressure

is

reduced

or

lost,

the

unit

will

not

alarm

because

it

will

continue

to

deliver

the

selected

100%

concentration.

The

MicroBlender

should

be

disconnected

when

not

being

used.

if

left

connected

to

source

gases

while

not

being

used

(i.e.

no

output

flow

or

bleed

flow),

the

unit

will

not

alarm

if

a

20

PSI

(1.41

kg/cm?)

or

greater

pressure

differential

develops.

It

is

felt

that

if

the

blender

is

not

in

use,

an

alarm

under

these

conditions

may

be an

unnecessary

distraction

or

nuisance.

E

GAS

OUTLETS

(FIGURE

6)

The

primary

gas

outlet

is

utilized

for

unmetered

high

flow

applications

in

the

range

of

15-120

LPM.

The

flow

of

gas

is

automati-

cally

initiated

by

an

attachment

of

a

pneumatic

device

to

the

outlet

port.

A

check

valve

is

unseated

upon

connection

allowing

the

mixed

gases

to

flow

through

the

primary

outlet.

AUXILIARY

QUILET

Figure

6

The

auxiliary

outlet

is

located

on

the

right

side

of

the

MicroBlender

and

is

designed

to

deliver

metered

gas

through

a

flowmeter.

Mixed

gas

may

be

delivered

within

speci-

fied

accuracy

tolerance

from

this

outlet

at

2

LPM

and

above.

When

a

connection

is

made

to

the

auxiliary

outlet

a

10-12

LPM

bleed

of

mixed

gas

to

the

atmosphere

is

activated.

This

bleed

is

essential

to

ensure

accuracy

of

concentration

for

applications

utilizing

low

flows

down

to

2

LPM.

SECTION

2:

WARNINGS,

CAUTIONS

AND

NOTES

August,

1991

The

3800

MicroBlender

should

be

oper-

ated

by

trained,

qualified

medical

person-

nel

under

the

direct

supervision

of

a

li-

censed

physician.

Before

clinical

applica-

tion,

the

WARNINGS,

CAUTIONS

and

NOTES

should

be

read

and

understood.

CAUTION:

Conditions

may

exist

that

could

damage

the

3800

MicroBlender

or

other

pieces

of

equipment.

WARNING:

CONDITIONS

MAY

EXIST

THAT

COULD

ADVERSELY

AFFECT

THE

OPERATOR

OR

PATIENT.

NOTE:

A

specific

point

is

made

to

assist

the

operator

in

its

understanding.

WARNINGS:

m

RESPIRABLE

(MEDICAL)

AIR

SHOULD

MEET

THE

REQUIREMENTS

OF

ANSI

Z86.1-1973

COMMODITY

SPECIFICATION

FOR

AIR,

TYPE

1

GRADE

D

OR

BETTER.

IT

SHOULD

ALSO

HAVE

A

DEW

POINT

OF

5°

F

(2.75°C)

OR

MORE

BELOW

THE

LOW-

EST

TEMPERATURES

TO

WHICH

THE

AIR

DISTRIBUTION

(PIPING)

SYSTEM

IS

EXPOSED.

PARTICULATE

(CON-

DENSED)

WATER

IS

THE

AIR

SUPPLY

IS

HARMFUL

TO

MANY

MEDICAL

DEVICES

UTILIZING

OR

CONTROL-

LING

COMPRESSED

AIR.

FILTERS

FREQUENTLY

BECOME

RESTRICTED

BY

DEPOSITS

OF

DISSOLVED

SALTS

AND

OTHER

AIRBORNE

MATTER.

WHILE

COMPRESSED

AIR

IS

TYPI-

CALLY

THE

MAJOR

SOURCE

OF

DEPOSITS,

OTHER

MEDICAL

GASES

AND

DISTRIBUTION

SYSTEMS

ARE

CAPABLE

OF

DELIVERING

FILTER

RESTRICTING

MATTER.

THIS

RE-

STRICTION

OF

FILTERS

CAUSES

INSIDIOUS

REDUCTION

IN

FLOW

CAPABILITY

OF

THE

BLENDER,

POS-

SIBLY

STARVING

A

DOWNSTREAM

DEVICE

SUCH

AS

A

VENTILATOR,

CAUSING

MALFUNCTION.

THERE-

FORE,

IT IS

VERY

IMPORTANT

TO

PERFORM

PREVENTATIVE

MAINTE-

NANCE,

MINIMALLY

AT

RECOM-

MENDED

INTERVALS

ON

DEVICES

WITH

FILTERS,

ESPECIALLY

IF

THE

GAS

SUPPLY

IS

NOT

KNOWN

TO

BE

CLEAN

AND/OR

FREE

OF

CON-

DENSED

WATER.

@

THE

3800

MICROBLENDER

SHOULD

BE

SERVICED

AND/OR

CALIBRATED

BY

A

BIRD

PRODUCTS

CORPORATION

TRAINED

HOSPITAL/DEALER

SERVICE

TECHNICIAN

OR

BIRD

PRODUCTS

CORPORATION.

m

THE

MICROBLENDER

IS

DESIGNED

TO

OPERATE

FROM

A

50

PSIG

(3.52

kg/cm?)

AIR

SOURCE

AND

A

50

PSIG

(3.52

kg/cm?)

OXYGEN

SOURCE.

Ш

DO

NOT

OCCLUDE

OR

OBSTRUCT

THE

BLEED

PORT

OR

MUFFLER

ON

THE

BOTTOM

OF

THE

MICROBLENDER.

@

ADJUSTMENT

OF

OXYGEN

CON-

CENTRATIONS

SHOULD

BE

VERIFIED

BY

AN

OXYGEN

ANALYZER.

一

4

一

WARNINGS

(CON'T)

m

WHEN

REASSEMBLING

THE

Ш

WHEN

THE

MICROBLENDER

IS

МОТ

BLENDER,

DO

NOT

PRESSURIZE

THE

IN

USE

AND

THE

AUXILIARY

OUTLET

SYSTEM

UNLESS

THE

VALVE

SEAT

IS

CONNECTED,

CLOSE

OFF

GAS

HAS

3

FULL

TURNS

OF

THREAD

EN-

SUPPLY

SOURCES

AS

THE

CONTINU-

GAGED.

THE

SEAT

CAN

BE

FORCE-

OUS

GAS

BLEED

MAY

DRAIN

COM-

FULLY

EJECTED

BY

GAS

PRESSURE

PRESSED

GAS

TANKS

EMPTY.

IF

NOT

SUFFICIENTLY

ENGAGED.

DO

NOT

EXCEED

3

FULL

TURNS

OR

THE

REAR

SEAT

MAY

BE

DAMAGED.

CAUTIONS:

@

An

air

inlet

filter/water

trap

(P/N

07426)

is

B

Use

recommended

lubricants

sparingly

recommended

for

use

with

the

as

lubricant

may

migrate

to

other

areas

and

MicroBlender

to

minimize

the

possibility

of

cause

the

MicroBlender

to

malfunction.

contaminants

such

as

particulate

debris

or

condensed

water

entering

the

blender

or

Ш

When

pressurizing

the

blender

inlets,

patient

gas

delivery

system.

avoid

excessive

pressure

surges,

(as

could

be

caused

by

"Quick

Dump"

valves).

Al-

E

DO

NOT

steam

autoclave

or

otherwise

ways

use

needie

valves

and

pressurize

subject

the

MicroBlender

to

temperatures

inlets

slowly.

above

145°

F

(62°C).

Mm

DO

NOT

immerse

assembled

blender

in

liquid

decontamination

agents.

NOTES:

m

Users

are

advised

to

use

pressure

regu-

@

Allow

equilibration

time

for

FIO,

changes

lators

that

display

regulated

pressure.

before

analyzing

gas.

SECTION

3:

CLINICAL

TROUBLESHOOTING

August,

1991

PROBLEM

POTENTIAL

CAUSE

CORRECTIVE

ACTION

Oxygen

concentration

discrepancy

between

blender

setting

and

ana-

lyzer

(greater

than

3%).

1.

Flow

requirements

are

outside

the

specified

LPM

range.

2.

Analyzer

out

of

calibration.

3.

Blender

out

of

calibration.

4.

Low

flow

bleed

muffler

obstructed

causing

restriction

of

fixed

bleed.

5.

Gas

supply

contaminated.

6.

Air

entrained

into

circuit

by

ventilator

or

accessory

device.

1.

Correct

flow.

Auxiliary

outlet

(2

LPM

or

more).

Primary

outlet

(15

LPM

or

more).

2.

Calibrate

analyzer.

3.

Recalibrate

or

service

further

as

necessary

(See

Section

4).

4.

Remove

obstruction

and

verify

bleed

flow

is

within

tolerance.

5.

Check

source

gases

with

calibrated

O,

analyzer

to

confirm

O,

is

100%

and AIR

is

21%.

6.

Correct.

Alarm

sounding.

1.

Inlet

pressure

differences

of

20

PSI

(1.41

kg/cm?)

or

more.

2.

Alarm

module

not

cali-

brated

properly.

3.

Inlet

gas

contamination,

alarm

module

malfunction.

1.

Correct

pressure

difference.

2.

Recalibrate

or

service

further

as

necessary

(See

Section

4).

3.

Disassemble,

clean,

reassemble,

calibrate,

install

inlet

filter/water

trap

on

air

line,

and

correct

cause

of

gas

contamination.

PROBLEM

POTENTIAL

CAUSE

CORRECTIVE

ACTION

MicroBlender

in

bypass.

No

Alarm.

1.

Reed

plate

(P/N

01866)

improperly

installed

or

dam-

aged.

2.

Alarm

gas

orifice

ob-

structed.

1.

Remove

and

replace.

2.

Remove

obstruction

from

orifice.

MicroBlender

accurate

only

when

inlet

gas

pres-

sures

are

equal.

1.

Balance

module

not

functioning

properly.

1.

Disassemble

balance

module,

clean,

replace

diaphragm(s),

reassemble

and

test.

1.7

Insert

second

diaphragm

alignment

tool

(P/N

03850)

into

Block

“B”,

making

sure

the

poppet

on

diaphragm

seats

into

align-

ment

tool.

FP

038054

<".

1.13

Lightly

lubricate

O-ring

(P/N

05186)

with

lubricant

(P/N

00631)

and

install

on

Balance

Block

Cap.

1.14

Place

a

very

small

amount

of

lubricant

grease

(P/N

03851)

on

one

end

of

spring

(P/N

03859),

then

install

lubricated

end

into

balance

block

cap.

Figure

9

1.8

Fasten

block

“A”

and

“B”

together

loosely

with

two

(2)

screws

(P/N

03825).

1.9

Holding

the

two

(2)

diaphragm

align-

ment

tools

in

place,

lay

the

entire

assembly

with

one

of

it's

surfaces

on

a

flat

surface.

This

will

align

blocks

properly

for

mating

with

valve

block.

1.10

Using

a

“/e"

Allen

wrench,

tighten

the

previously

installed

two

(2)

screws

holding

blocks

“A”

and

“B”

together.

Torque

to

60

in/lbs.

1.11

Install

and

tighten,

using

a

5/32"

Allen

wrench,

remaining

two

(2)

screws

(P/N

03825)

to

opposite

side

of

“A"

and

"B"

block

assembly.

Torque

to

60

in/lbs.

1.12

Remove

both

diaphragm

alignment

tools

and

place

“A"

and

"B”

block

assembly

on

its

side.

Figure

10

NOTE:

Lubricant

on

spring

end

ensures

adherence

of

spring

to

cap

during

placement

into

block

assembly.

1.15

Install

cap

and

spring

into

block

assembly

and

tighten

in

place

using

spanner

wrench

(P/N

03849).

1.16

Place

block

assembly

“AB"

on

opposite

side

and

repeat

steps

1.13

to

1.16.

1.17

Reassemble

block

“CD"

using

same

procedure

as

“AB"

beginning

with

Step

1.4.

1.18

Lightly

lubricate

O-rings

(P/N

00138)

with

lubricant

(P/N

00631).

1.19

Place

block

assemblies

and

O-rings

(P/N

00138)

aside

for

final

assembly.

一

13

一

SERVICE,

REPAIR

AND

CALIBRATION

Ш

VALVE

BLOCK

2.0

OXYGEN

INLET

DISASSEMBLY/

REASSEMBLY

-

BOTTOM

REAR

OF

MICROBLENDER

(FIGURE

11)

NOTE:

This

assembly

threads

into

the

block

with

a

left-handed

thread.

A

single

groove

on

nut

indicates

left

hand

thread.

2.1

With

a

%/."

open

end

wrench,

remove

the

oxygen

inlet

assembly

from

the

valve

block.

2.2

Using

a

second

°/."

open

end

wrench,

separate

the

O,

connector

from

the

filter

retainer.

2.3

Use

a

%/."

open

end

wrench

to

stabilize

the

filter

retainer,

then

remove

the

O,

tail

piece

using

a

*/s"

Allen

wrench.

2.4

Remove

the

filter,

duckbill

check

valve,

O-rings

and

washer

and

discard.

e

OXYGEN

INLET

REASSEMBLY

03808—

a

03834L—

//

УХ

——

03897

NI

년

06804

03808—

VD]

一

00193

Ta

+——03835L

x

KN

N

03837

00822

00143

Sí

CE

上

一

Figure

11

Replacement

Parts:

NOTE:

The

filter

may

have

to

be

grasped

with

pliers

to

remove.

PART

NO.QTY.DESCRIPTION

00143

1

IO-ring

00193

1

|O-ring

03808

2

|O-ring

03895

1

|Duckbill

Check

Valve

03897

1

|Washer

06804

1

{Inlet

Cone

Filter

Clean

all

parts

with

an

ultrasonic

cleaner.

Ensure

all

passages

are

blown

completely

dry

before

beginning

reassembly.

NOTE:

Prior

to

installation,

place

a

small

amount

of

Vibra-Tite

(P/N

03884)

on

threads

of

O,

Tailpiece

(P/N

03837)

and

let

Vibra-Tite

dry

for

at

least

10

minutes.

2.5

Lightly

lubricate

O-ring

(P/N

03808)

with

lubricant

(P/N

00631)

and

assemble

to

O,

connector

(P/N

03834).

2.6

Insert

duckbill

check

valve

(P/N

03895),

washer

(P/N

03897)

and

cone

filter

(P/N

06804)

into

O,

connector.

—

14

—

NOTE:

Step

on

washer

fits

into

duckbill

check

valve.

2.7

Lightly

lubricate

O-rings

(P/N

03808,

00193)

with

lubricant

(P/N

00631)

and

assemble

to

O,

filter

retainer

(P/N

03835L).

2.8

Using

two

(2)

"open

end

wrenches,

tighten

the

O,

connector

to

the

filter

retainer.

Torque

to

10

ft./lbs.

2.9

Take

unlubricated

O-ring

(P/N

00143)

and

assembie

to

O,

tail

piece

(P/N

03837).

2.10

insert

O,

tail

piece

into

nut

(P/N

00822)

and

using

a

'/s"

Allen

wrench,

tighten

to

O,

connector.

Torque

to

10

ft./

ibs.

2.11

Set

O,

inlet

aside

for

final

assembly

to

valve

block.

3.0

AIR

INLET

DISASSEMBLY/

REASSEMBLY

-

BOTTOM

REAR

OF

MICROBLENDER

(FIGURE

12)

3.1

With

a

%/."

open

end

wrench,

remove

the

air

inlet

assembly

with

O-ring.

Remove

and

discard

O-ring.

3.2

Remove

the

inlet

cone

filter

located

in

valve

block

and

discard.

Clean

all

parts

with

ultrasonic

cleaner.

Ensure

all

passages

are

blown

completely

dry

before

beginning

reassembly.

+

AIR

INLET

REASSEMBLY

č.

m

see

Replacement

Pants:

PART

NO./QTY.|

DESCRIPTION

03808

1

|O-ring

03895

1

Duckbill

Check

Valve

03897

1

Washer

06804

1

inlet

Cone

Filter

NOTE:

The

filter

may

have

to

be

grasped

with

pliers

to

remove.

3.3

Next,

remove

the

washer

and

duckbill

check

valve

from

the

valve

block

assembly.

Discard

check

valve

and

washer.

3.4

Install

lightly

lubricated

O-ring

(P/N

03808)

with

lubricant

(P/N

00631)

on

air

inlet

connection

(P/N

03895).

3.5

Place

inlet

cone

filter

(P/N

06804)

inside

air

inlet.

3.6

Set

air

inlet

aside

with

duckbill

check

valve

(P/N

03895)

and

washer

(P/N

03897)

for

final

assembly

to

valve

block.

4.0

PRIMARY

OUTLET

DISASSEMBLY/

REASSEMBLY

-

BOTTOM,

FRONT

OF

MICROBLENDER

4.1

With

an

''/6"

open

end

wrench,

re-

move

the

primary

outlet

from

the

vaive

block

assembly.

—

15

—

SERVICE,

REPAIR

AND

CALIBRATION

4.6

Set

assembly

with

spring

(P/N

NOTE:

Small

spring

is

loose

and

may

fall

03310)

aside

for final

assembly.

out

of

cavity.

4.2

Remove

poppet

from

primary

outlet,

then

remove

O-ring

from

poppet

and

discard.

4.3

Remove

O-ring

from

primary

outlet

and

discard.

Clean

all

parts

with

an

ultrasonic

cleaner

and

rinse

with

clean,

warm

water.

Ensure

all

passages

are

blown

completely

dry

and

that

poppet

seat

areas

are

perfectly

clean

before

beginning

reassembly.

*

PRIMARY

OUTLET

REASSEMBLY

Figure

13

Replacement

Parts:

PART

NO.IQTY.

DESCRIPTION

00138

1

O-ring

05186

1

O-ring

4.4

Lightly

lubricate

O-ring

(P/N

05186)

with

lubricant

(P/N

00631)

and

install

on

primary

outlet

housing

(P/N

03838)

and

lubricated

O-ring

(P/N

00138)

on

poppet

(P/N

03312).

4.5

Insert

poppet

into

the

outlet

housing.

5.0

AUXILIARY

OUTLET

DISASSEMBLY/

REASSEMBLY

-

RIGHT

SIDE,

FRONT

OF

MICROBLENDER

(FIGURE

14)

5.1

Using

an

"'/"

open

end

wrench,

remove

the

auxiliary

outlet

from

the

valve

block

assembly.

NOTE:

Small

spring

is

loose

and

may

fall

out

of

cavity.

5.2

Remove

poppet

from

auxiliary

outlet

then

remove

O-ring

from

poppet

and

discard.

5.3

Remove

O-rings

from

auxiliary

outlet

housing

and

discard.

Clean

all

parts

with

an

ultrasonic

cleaner.

Ensure

all

passages

are

blown

com-

pletely

dry

and

poppet

seats

are

perfectly

clean

before

beginning

reassembly.

Ensure

orifice

on

Auxiliary

outlet

(P/N

03809)

is

not

occluded.

«

AUXILIARY

OUTLET

REASSEMBLY

03809

03808

00193

03806

[

1——

03810

00138

Figure

14

一

16

一

PART

NO.|

DESCRIPTION

WARNING:

00631

Lubricant

THE

3800

MICROBLENDER

SHOULD

03850

Alignment

Assembly

Tool

(2)

BE

SERVICED

AND/OR

CALIBRATED

03849

Spanner

Wrench

BY

A

BIRD

TRAINED

HOSPITAL/

03851

Lubricant

Grease

DEALER

SERVICE

TECHNICIAN

OR

03884

Vibra-Tite

Thread-locking

BIRD

PRODUCTS

CORPORATION.

Compound

10101

Tube

Assembly,

Leak

Test

10102

Tube

Assembly,

Pressure

Test

CAUTION:

Before

attempting

to

service/

repair

the

3800

MicroBlender,

the

service

person

should

first

be

familiar

with

its

design

and

operation

as

explained

in

Section

1

of

this

manual.

10108

Fitting,

Bleed

Test

10138

Blender

Alarm

Tool

Additional

tools

and

supplies

recommended

for

service/repair

(not

available

from

Bird

Products

Corporation):

A.

SERVICE/CALIBRATION

TOOLS

5/30"

Allen

wrench

1/8”

Allen

wrench

9/32"

hex

nut

driver

Special

Bird

tools

will

be

reguired

for

the

service

disassembly

and

assembly

of

the

3800

MicroBlender.

These

products

may

*/s2"

Allen

driver

be

obtained

from

Bird

Products

Corporation

1/8"

Allen

driver

under

the

following

individual

part

numbers

3/4"

Deep

socket

or

as

the

MicroBlender

Tool

Kit

(P/N

11/16"

Deep

socket

03852).

See

Figure

8.

3/4"

open

end

or

adjustable

wrenches

(2)

“/1e"

Open

end

or

adjustable

wrench

7/32"

Allen

wrench

Small

needle

nose

pliers

나

^”

Isopropy!

Alcohol

10138

Torque

wrench

(to

120

in/Ibs)

圖

0-10

LPM

Flowmeter

('/2

LPM

Increments)

10102

03849

Ea

더그

10108

03850

03851

03884

Figure

8

ーー

11

一

SERVICE,

REPAIR

AND

CALIBRATION

A

MicroBlender

Maintenance

Kit

may

be

ordered

by

specifying

P/N

10003.

This

kit

includes

all

parts

necessary

for

periodic

preventive

maintenance.

Bird

Products Corporation

recommends

using

an

ultrasonic

cleaner

for

cleaning

all

components.

However,

cleaning

with

an

all-

purpose

liquid

cleaner

and

rinsing

with

clear,

warm

water

may

be

substituted.

Both

methods

require

thoroughly

blow

drying

all

passages

before

final

assembly.

When

using

an

ultrasonic

cleaner,

follow

the

manufacturers

instructions.

B.

DISASSEMBLY/REASSEMBLY

PROCEDURE

(FIGURE

9

and

10)

m

BALANCING

REGULATORS

1.0

BALANCE

BLOCK

DISASSEMBLY/

REASSEMBLY

-

TOP

OF

MICROBLENDER

1.1

With

a

5/22"

Allen

wrench,

remove

the

top

four

screws

securing

the

two

balance

block

assemblies

to

the

valve

block.

1.3

With

a

5/2"

Allen

wrench,

remove

each

of

four

(4)

screws

securing

each

pair

of

blocks.

Remove

the

diaphragms

and

O-rings

and

discard.

Clean

all

parts

with

an

ultrasonic

cleaner.

Ensure

all

passages

are

blown

completely

dry

before

beginning

reassembly.

Be

sure

that the

poppet

seat

areas

are

perfectly

clean.

Balance

block

assembly

replacement

parts:

PART

NO.|QTY.|

DESCRIPTION

00138

O-Ring

03858A

Diaphragm

05186

4

O-ring

NOTE:

The

balance

block

assemblies

are

identical

and

interchangeable.

For

ease

of

assembly,

the

blocks

may

be

labeled

(A,

B,

C

and

D).

1.2

Using

spanner

wrench,

remove

the

caps

(2

each

per

balance

block

assembly).

Remove

O-rings

and

discard.

NOTE:

Poppet

spring

and

ball

will

be

loose

following

removal

of

balance

block

cap.

Remove

components

and

set

aside.

*

BALANCE

BLOCK

REASSEMBLY

1.4

Holding

diaphragm

alignment

tool

(P/N

03850)

in

hand,

place

the

“A”

Block

onto

the

alignment

tool

with

the

diaphragm

cavity

facing

up.

1.5

Piace

diaphragm

(P/N

03858A)

into

cavity.

NOTE:

Make

sure

poppet

on

diaphragm

seats

into

diaphragm

alignment

tool

(P/N

03850).

1.6

Place

“B”

block

on

top

of

assembly

with

diaphragm

cavity

facing

down.

NOTE:

Align

block

assemblies

for

proper

gas

flow.

Three

holes

on

each

block

(bottom)

must

be

aligned.

一

12

一 -

BIRD MicroBlender 3800 User manual

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