Leybold Of-1000 User manual

LEYBOLD

Vacuum

Solutions Application Support Service

VACUUM

PRODUCTS

INC

.

Part Number 772-78-009 • Edition N

OF-1000

OIL FILTERING SYSTEM

MANUAL

Operating

Manual

~

~~

IIII'~

LEYBOLD

Gear

Pump

Motor

•.•....••....

(A

coated

version

is

used

with

the

OF-1000~l

Gea

r

Purr.p

Pressure

Gauge

Oil Pressure+

I

ni

t i

ill

k

••••••••••••••••••

For room-temperature oilH

•.

For

warm

oil

.••.•..••••.•.

When

element

is

clogged

.•.

Oil Capacity

Single-canister

model

. •

...

Dual-r.anister

model.

.••...

Flexible

HJses

•......

•

•....

Dimension~

Single

<

anister

model

•• •

•.

Dual-:a'1ister

Model

•.•••••

Weight

of

~in91e-Canister

Model

without the

Filter

Element or

the

Oil

...•....•.

Max

imum

Run

••...........•...

TABLE

I

--

OF-1000

TECHNICAL

DATA

1/6

Hp,

115/208/230

Volts;

3.6/1.8

Amps,

Single

Phase, 50/60

Hz,

1425/1725

RPMs,

with

automatically

resetting

thermal

overloads,

wired for

115

Volts.

0.7

gpm

at

1725

RPM

0-100

psig

(0-700 K Pal

See

Section

3.2

for

a

detailed

explanation.

o

psig

30

to

55

psig

5

to

30

psig

>50

psig

3.75

quarts

of

hydrocarbon

oil

or

15

pounds

of

perfluoropolyether

7.5

quarts

of

hydrocarbon

oil

or

30

pou

nd

s

of

pe

rf

luoro

po

l

yet

her.

4-feet

long x 3/8" 10, Teflon with

stainless

steel

braid

14"

Wx

14"

L x

10

1/2" H

14"

Wx

23"

L x

10

1/2" H

44.5 pounds

OF-IOOO

can

operate

10

to

15

feet

away

from

the

vacuum

pump

horizontally.

Vertically,

it

can

operate

up

to 5

feet

above

the

pump;

there

is

no

restriction

on

the

distance

it

can

operate

below

the

pump.

+These

pressures

are

for

the

single

canister

model.

The

pressures

for

the

dual-canister

model

are

hi gher.

*\

h res ure

ri

ses

as soon as

the

oil

displaces

an

y

air

in

the

OF-IOOO.

'Th

is

pressure

gradua

ll

y decrea

ses

a

~

t~~

va

cuump

ump

app

ro

~

c

h

~ s

1t

opCra

LI

"y

L ~

ru~

~rdLure

,

S

t-'

e

H

:

~

i

r"ls

ide

back

cover

for

the warranty_

TRIVAC

is

a registered trademark

of

Leybold.

(}

()

CONTENTS

Section

Title

SECTION

1 -

INTRODUCTION

. . . .

SECTION

2 -

EQUIPMENT

UNPACKING.

Page

1

2

SECTION

3 -

DESCRIPTION

AND

PRINCIPLES

OF

OPERATION

3

3.1 General Description .

3.2 Oil Circulation

3.3

Filtering

Elements

...

3.4 Perfluoropolyether

Oil

SECTION

4 -

INSTALLATION

SECTION

5 -

START

UP

.

SECTION

6 -

OPERATION

~ . 3

5

8

9

10

17

20

6.1 Monitoring the

Oil

Pressure

and

Color .

19

6.2

Gas

Bubbles in the

Oil

During Operation.

20

6.3.

Using

One

OF-1000

to Service Several

Pumps

.....

21

SECTION

7 -

ROUTINE

MAINTENANCE

7.1 Checking for Contamination.

7.2

Changing

the

Filtering

Element

7.3

Changing

the

Oil

7.4 Checking the

Oil

Level

23

24

26

32

33

SECTION

8 -

TROUBLESHOOTING

34

SECTION

9 -

PARTS

LIST

. . . .

41

APPENDIX

A -

CONVERSION

INSTRUCTIONS

FOR

E-

AND

DK-

PUMP

MODELS

. . . . . . . . . .

48

.

E-

and

DK-

Pump

Modification

48

APPENDIX

B -

INSTALLING

A

NEW

MECHANICAL

SEAL

IN

THE

GEAR

PUMP

. . . . . . . . . . . . . . . . .

..

51

~

~~~

LEY

BOLD

~

~~~

LEYBOLD

i i

LIST

OF

FIGURES

Figure

Title

Page

3-1 Side

View

of

OF-lOOO

4

Sketch of

an

OF-lOOO

Connected to a

Vacuum

Pump

12

4-1 Quick-Connects

Assembly

on

Ends

of

Hoses

13

7-1

Top

View

of

OF-lOOO

. . . • . .

25

7-2

Filter

Housing

Assembly

(898555)

29

9-1 Side

View

of

OF-1000

.....

.

9-2

Top

View

of

OF-lOOO

. . . . . . .

9-3 Sectional

View

of

Filter

Housing.

A-I

Drilling

Modification to E

and

OK

Pump

for

Oil

42

44

46

Filtering

System. . . • . . . . . . . .

50

B-1

Cross Section of the

Gear

Pump

. • . .

52

LIST

OF

TABLES

Table

Title

Page

3-1

OF-1000

Specifications 5

6-1 Part

Numbers

for the Quick-Connect

Stem,

Elbow,

and

Adapters . . • • . •

21

8-1 Troubleshooting Chart . • • • . . . • . .

35

~

~~

IIJ'~

r-

--~

--------------~

----

----------------------------------------

-

LEYBOLD

SECTION

1

INTRODUCTION

This

manual

contains

all

of the information

that

you

need

to

safely

install,

start,

operate, maintain, troubleshoot,

and

order

parts

for

your

OF-lOOO

oil

filtering

system.

The

OF-IOOO

oil

filtering

system extends

the

life

of

the

vacuum

oil

and

of

the

vacuum

pump

by

removing contaminants

and

heat

from

the

oil.

It

can

be

used

with

TRIVAC

"A"

pumps.

With

minor

modifications,

you

can

also

use

it

with E

and

OK

series

rotary

piston

pumps

(see

Appendix A).

Aluminum

oxide,

particulate,

Fullers

Earth

and

hydroph

ilic

filtering

elements

are

available

for

use

in

the

OF-1000

. See S

ection

3

for

a

detailed

description

of

the

OF-1000

and

Sectio

n

3.3

for

information

on

selecting

the

correct

filter

element fo r your

application.

There are

two

model

s of the

OF-lOOO:

1) a

single-canister

housing

model

and

2)

a dual-canis

ter

model. There are three versions of each

of

these

two

models: 1) a

st

andard version,

2)

a version prepared for

perfluoropolyether

oil,

and

3)

a coated

corrosive-series

version prepared

for

perfluoropolyether

oil.

The

coated version

is

referred

to

as the

OF-IOOOC.

Unless otherwise noted,

all

references

to

the

OF-1000

in

this

manual

apply to

all

three

versions of the oil

filtering

system.

Check

the nameplate

on

the

OF-1000

pan

to determine

which

version

you

have.

The

following

lists

the

part

number

for each version.

Single-Canis

ter

Model

Standard V

ersi

on

Version Prepared for Perf1uoropo1yether

OF-IOOOC

Coated Version Prepared for

Perflu

cr

opo

1

yether

Dual-Canister

Model

Standard V

ersi

on

Version Prepared for Perf1uoropolyether

OF-IOOOC

Coated Version Prepared for

P

erfluor

opo

1

yether

Part

Number

898550

898551

898561

Part

Number

898552

898553

898554

The

top of the

cove

r nut

is

painted

brown

on

the

OF-1000C

versions to

make

it

easy to

identify

.

"WARNING

" statements are used in

this

manual

to prevent injury to

personnel ;

"CAUTION

" statements are used to prevent

damage

to equipment;

"NOTES"

contain hel pful information.

1

~

...

~

".,.4

LEYBOLD

Numbers

in parentheses

refer

to

item

numbers

of

parts

in the

parts

list

(see Section

9-2).

These

numbers

are

also

used

to

identify

parts

on

the

figures.

WARNING:

Ensure

that

your process gas

is

compatible with the

OF-IOOO

materials.

If

the process gas

isn't

compatible,

it

could

result

in contaminated

oil

l~aking

out of the

OF-IOOO

or

air

leaking

into

the

OF-IOOO

and

vacuum

pump.

See

Sections 9-2

and

9-3

for

a

list

of

materials

used in the

OF-IOOO.

Contact our factory

for

more

i nformation.

SECTION

2

EQUIPMENT

UNPACKING

The

filtering

element

isn't

included with the

OF-IOOO.

You

must

purchase

the

filtering

element

separately

and

install

it

before using the

OF-IOOO

(see Section

4).

See

Section 3.3

for

information

on

selecting

the

correct

filtering

element

for

your process.

Proceed as follows

to

unpack

the

OF-IOOO

and

check

for

shipping

damage.

1.

Inspect

the

outside

of the shipping container

for

shipping

damage.

If

you

will

be

making

a

damage

claim,

keep

the shipping

container

and

packing

materials.

2.

Carefully

unpack

the

OF-lOOO.

3. Inspect the

OF-lOOO

for

damages.

4.

If

you

find

any

evidence of

damage,

proceed as follows:

2

a.

Save the shipping

container,

packing

material,

and

damaged

part

for

inspection.

b. Notify the

carrier

that

made

the delivery within

15

days of

delivery

in accordance with

Interstate

Commerce

regulations.

c.

File

a claim with the

carrier

for the

damage.

Any

damage

in

transit

is

the

responsibility

of

the

carrier

because

all

equipment

is

transported

from

our

factory

by

private

carriers.

d.

If

it

is

necessary to replace the

damaged

part,

contact

the our

Order Service department.

t

SECTION

3

DESCRIPTION

AND

PRINCIPLES

OF

OPERATION

3.1

GENERAL

DESCRIPTION

The

OF-1000

oil

filtering

system extends the

life

of the

vacuum

oil

and

of the

vacuum

pump

by

removing contaminants

and

heat

from

the

oil.

The

OF-lOOO

can

be

used

with

TRIVAC'"A"

pumps. With minor

modifications

to

the

pump,

you can

also

use

it

with

E and

OK

Series

Rotary

Piston

Pumps

(see

Appendix A).

Single-canister

and

dual-canister

OF-1000

models are

available.

The

dual-canister

model

has

two

filter

elements in

series;

it

is

usually

used in processes

that

generate both

particulates

and

acids.

A

particulate

element

is

installed

in the

center

canister

and

an

activated

alumina element

is

installed

in the outer

canister.

The

particulate

element

traps

dirt

particles

that

would

otherwise clog

the

activated

alumina element.

See

Section 3.3 for

more

information

on

filtering

elements.

A standard version

and

two

degreased versions are

available

for both

the

single-canister

and

the

dual-canister

models.

The

degreased

versions are for use with perfluoropolyether

oil

(see Section

3.4).

One

degreased version

is

uncoated.

The

other,

the

OF1000C,

is

chemically

treated

with a fluorocarbon material to

resist-corrosion.

After the metal surfaces are prepared, the fluorocarbon

is

sprayed

and

then

baked

onto the

internal

surfaces of the

filter

housing, gear

pump,

fittings,

and

the quick-connects

so

that

it

won't peal

off.

The

OF-1000

consists

of a gear

pump

with motor, a pressure gauge,

and

an

aluminum

filter

housing(s)

mounted

on

a

steel

pan

(see

Figure

3-1).

Rubber

feet

on

the

pan

ensure

quiet

and

vibration-free

operation.

A

sight

glass/flow

indicator

(H12)

allows

you

to observe the flow

and

clarity

of the

oil.

The

OF-1000

hoses

have

quick-connects for easy

installation

and

removal.

3

~

....

~

..,~

LEY

BOLD

-------------------------------------------------------------------,

aUICK-CONN':CTCOUPLER (15)

AND

STEM

(1"124)

PRESS-URE

GAUGE

(3)\

4

_lr.I

...

.II

.A

PUMP

(2)

RUBBER

FOOT

(

11)

Figure 3-1 -Side

View

of

OF-1000

Quick-connects are also used to connect the gear

pump

to the

filter

housing (see Figure

3~1).

These quick-connects allow

you

to

easily

remove

the

fil

ter-housi

ng/fil

teri

ng-el

ement

assembly

from

the

OF-1000.

If

you

keep

a spare

filter

housing with a clean

filtering-element

on

hand, the

filter

housing/filtering

element

assembly

can

be

changed in a

few

minutes, thus minimizing

down

time

for'filter

changes.

This feature also allows

you

to replace the

filter

housing/filtering

element assembly in a clean

room.

The

used assembly

can

then

be

removed

from

the clean

room

and

be

recharged with a

new

filtering

element

and

oil

to

keep

on

hand

for future changes.

See

Table 3-1

for

specifications

and

Figure

3-1

for a photograph of the

OF-1000,

10-1.28

t

•

~

~~

"...i

r------------------------------------------------------------------

LEY

BOLO

TABLE

3-1

--

OF-1000

SPECIFICATIONS

Gear

Pump

Motor

•••••.•••••••

(A

coated version

is

used with the

OF

-lOOOf. )

Gear

Pump

..................

Pressure

Gauge

.............

Oil Capacity

Single-Canister

Model

Dual-Canister

Model

Oil Pressure+

Initial*

.................•

For room-temperature oi11 ••

For

warm

oil

••••••••.••••

When

element

is

clogged •••

Flexible

Hoses

Dimensions

Single-Canister

Model

Dual-Canister

Model

Weight

of

Single-Canister

Model

without the

Filter

1/6

Hp,

115/208/230

Volts,

3.6/1.8

Amps,

Single Phase, 50/60

Hz,

1425/1725

RPMs,

with automatically

resetting

thermal

overloads,

(wired for

115

Volts).

0.7

gpm

@

1725

RPM

0-100 psig (0-700 K

Pa)

3.75

qts.

of

hydrocarbon

oil

or

15

pounds

of

perf1uoropo1yether.

7.5

qts.

of

hydrocarbon

oil

or

30

pounds of perf1uoropo1yether.

See

Section

3.2.

o psig

30

to

55

psig

5

to

30

psig

)50 psig

4-feet

long x 3/8"

1.0.

Teflon with

stainless

steel

braid

14"

Wx

14"

L x 10-1/2" H

14"

Wx

23"

L x 10-1/2" H

Element or the

Oil

••••••.•.•

44.5

pounds

Maximum

Run

................

OF-1000

can

operate

10

to

15

ft

away

from

the

vacuum

pump

horizontally.

Vertically,

it

can operate

up

to 5

feet

above the

pump;

there

is

no

restriction

on

the

distance

it

can

operate

below

the

pump.

+These

pressures

are

for

the

single-canister

models.

The

pressures for

the

dual-canister

model

are

higher.

*The

pressure

rises

as

soon

as the

oil

displaces

any

air

in the

OF-1000.

'This

pressure gradually decreases as the

vacuum

pump

approaches

its

operating

temperature.

5

~

~~~

LEY

BOLD

--------------------------------------------------------------------~

3.2

OIL

CIRCULATION

6

During operation the

OF-lOOO

recycles

oil

as follows (see

Figure

3-1).

1. Contaminated

vacuum

oil

is

drawn

from

the

vacuum

pump's

oil

reservoir

through the

OF-lOOO

hose

and

into

the gear

pump.

2.

The

OF-lOOO

gear

pump

provides the pressure to

circulate

the

oil

through the

OF-lOOO

system.

The

gear

pump

has

an

internal

bypass

valve

that

diverts

all

or

part

of the

oil

back

into

the

inlet

chamber

of

the gear

pump

if

the pressure through the

filter

system

exceeds approximately

55

psi.

3.

An

oil-pressure

gauge

mounted

on

the

OF-lOOO

gear

pump

indicates

the pressure

of

the

oil

flowing through the

filter

element.

The

pressures

listed

below are

for

the

single-canister

models; the

corresponding pressures for the

dual-canister

models

are higher.

o psig

The

gauge

will read 0 psi

until

the

oil

displaces

any

air

that

may

be

in the

OF-lOOO.

30

to

55

The

pressure

will

rise

to

30

to

55

psi while the

psig

OF-lOOO

is

filtering

room

temperature

oil.

This

pressure

will gradually decrease as the

vacuum

pump

approaches

its

operating temperature.

5

to

30

The

normal

operating pressure

after

the

OF-lOOO

is

warm

psig

is

5

to

30

psig.

>50

psig

If

the

pressure

is

above

50

psig

when

the system

is

at

its

operating

temperature

and

has a

new

filtering

element

and

relatively

clean

oil,

it

means

that

the

filtering

element

may

be

partially

clogged or

that

there

may

be

a flow

restri~tion

downstream

of

the

gauge.

4.

The

gear

pump

forces the contaminated

oil

through the quick-

connects

into

the

side

of the

filter

housing.

•

~

~.,~

~----

------------------------------------------

----------------------

LEYBOLD

5. Inside

of

the

filter

housing, the 0;1

is

forced inward through the

filtering

element (see Section 3.3) then

up

the

center

of

the

housing to the top

where

it

flows through the four holes in the

cover nut,

and

finally

down

through the

center

tube (see Figure

9-3).

Forcing

all

of the

0;1

to

the top of the

filter

housing

ensures

that

any

air

trapped

there

;s

re

moved.

6.

The

clean

oil

then flows out of the bottom

of

the

filter

housing

up

through the

sight

glass/flow

indicator

on

the

side

of

the

housing,

and

out

of

the

filter

housing.

7. For

single-canister

models, the

oil

then

returns

to

the

oil-fill

port

of the

vacuum

pump

through the

OF-lOOO

hose.

For

dual-canister

models, the

oil

flows out

of

the

center

canister

and

into

the

outer

canister

where

it

is

filtered

a second time

before

returning

to

the

vacuum

pump.

The

sight

glass/flow

indicator

on

the

filter

housing gives a visual

indication

of

flow

and

allows

you

to

monitor the

color

and

appearance

of

the

filtered

oil.

The

actual flow depends

on

the

oil

viscosity

at

pump

operating temperature

and

the

specific

gravity

of the

particular

oil

that

you

are

using.

When

the

oil

is

cold,

the

float

should

be

at

the top of the

sight

glass/flow

indicator.

If

the

float

nears the

bottom of the

sight

glass/flow

indicator

during operation

it

means

that

the

OF-lOOO

filtering

element needs to

be

changed,

that

there

is

a flow

restriction

in the

OF-lOOO,

or

that

the

vacuum

pump

is

running

hot.

The

standard

OF-lOOO

versions

(for

hydrocarbon

oils

only) have a

color

chart

attached

to

the

filter

housing.

Use

the color

chart

as a guide

for

determining

when

the

filter

element needs to

be

changed.

OF-lOOO

versions prepared for extreme-corrosive

service

don't

have

this

cha~t.

7

~

~.,~

LEYBOLD

3.3

FILTERING

ELEMENTS

8

You

have a choice of

Aluminum

Oxide, Hydrophilic,

Fullers

Earth,

or

Particulate

filtering

elements (see Section 9-1 for ordering

information).

For the

dual-canister

models,

two

filter

elements are used

is

series.

Usually a

particulate

element

is

used in the

center

canister

and

a

activated

alumina element in

the

outer

canister.

The

particulate

element

removes

dirt

particles

from

the

oil

thus

protecting

the

alumina element

from

becoming

clogged with

particulates.

The

Aluminum

Oxide

filte,

effectively

degasses the

oil

and

is

an

outstanding

particulate

filter.

It

also

removes

Lewis

acids,

polar

compounds,

solvents,

and

mineral acids such as

Hel

and

HF.

The

Particulate

filter

is

a

pleated

paper element

that

traps

particulates

as

small as

10

microns.

The

Hydrophilic element

is

best

for removing

particulates,

water,

and

mild

acids.

This element

works

by

absorbing moisture

and

any

substance

associated

with the moisture.

However,

moisture

must

be

present

for

the hydrophilic element

to

be

effective.

The

Fullers

Earth element adsorbes

acids.

•

,

~

.

~~~

~-------------------------------------------------------------------

LEYBOLD

3.4

PERFLUOROPOLYETHER

(PFPE)

OIL

Perfluoropolyether

(PFPE)

is

an

inert

vacuum

oil

used

when

pumping

extremely

corrosive

or

reactive

gases.

If

contaminants

mix

with the

PFPE,

the

resultant

mixture has poor vapor pressure

and

lubricating

qualities.

If

Lewis

acids contaminate

PFPE

at

high temperatures, the

oil

will break

down.

See

"Engineering Notes

on

Vacuum

Pump

Oils"

or

the

LHK

publication

"Perfluorized Polyethers

for

Vacuum

Pumps"

(GA

7.009) for

more

information

on

PFPE

vacuum

oils.

The

OF-IOOO

is

ideally

suited

for

vacuum

pumps

using

PFPE

oil.

The

Activated

Alumina

filtering

~lement

removes

Lewis

acids in

addition

to

removing

corrosive

contaminants.

The

small

oil

capacity (see Table

3-1) minimizes your investment in

PFPE.

When

using

PFPE

oils,

the

vacuum

pump

and

OF-IOOO

must

be

kept

completely

free

of

all

hydrocarbon

oils,

solvents,

greases,

and

other

hydrocarbon substances for the following reasons:

o Hydrocarbons could

react

with the process gas to

create

a

fire

or

explosion hazard,

and

o

PFPE

and

hydrocarbon

oils

emulsify

when

they

come

in

contact

with

each

other.

As

mentioned

previously,

there

are

two

versions of both

OF-IOOO

models

which

are prepared for use with

PFPE

oil

by

degreasing.

One

version

is

uncoated

and

the

other

is

coated.

The

coated version

is

referred

to

as the

OF-IOOOe

Corrosive

Series.

The

filter

housing, gear

pump,

fittings

and

the quick-connects

on

the

OF-IOOOe

are chemically

treated

with a fluorocarbon material

to

resist

corrosion.

After

preparing the metal, the fluorocarbon

is

sprayed

and

then

baked

onto the metal surfaces

so

that

it

won't peal

off.

9

~

~~~

LEY

BOLD

----------------------------------------------------------------~

Hazardous

gases

PFPE-prepared

OF-lOOO

Glass

sight

glass

SECTION

4

INSTALLATION

WARNINGS:

If

the

vacuum

pump

and/or

OF-lOOO

has

been

used

on

corrosive,

toxic,

hazardous, or

volatile

gases, take proper safety

precautions to

protect

personnel

a)

before

removing

the plugscrews or

inlet

and

exhaust

lines

from

the

vacuum

pump,

b)

before

removing

the

OF-lOOO

quick-connects,

and

c) before

removing

the cover

from

the

OF-lOOO

filter

housing

..

Proper precautions could

include

inert

gas

purging before

and

after

you

drain the

oil

to

sweep

hazardous

gas

from

the

vacuum

pump

or optional

inlet

and

exhaust

filters;

gloves or protective clothing

to

avoid skin contact with toxic or highly

corrosive substances;

specially

ventilated

work

areas;

fume

hoods; safety

masks;

breathing apparatus;

etc.

If

you

will

be

using perfluoropolyether

(PFPE)

oil,

you

must

use

an

OF-lOOO

and

vacuum

pump

that

are

specially

prepared for

perfluoropolyether.

See

Section 3.4

and

contact

our factory for

more

information.

Use

care

when

working near the

sight

glass.

If

you

break

this

glass,

oil will

squirt

out.

You

can

special order longer hoses

if

you

need

to operate the

OF-lOOO

farther

than 4

feet

away

from

the

vacuum

pump.

With

the longer hoses, the

OF-lOOO

can

operate

as

far

as 10 to 15

feet

horizontally

away

from

the

vacuum

pump.

It

isn't

necessary to

bolt

down

the

OF-lOOO.

however,

if

you

wish

to

secure

it

in place, replace the

bolt

in the center of each rubber foot with

a

bolt

that

is

long

enough

to secure the

OF-lOOO

to

your

frame

or platform.

Don't

remove

the rubber

feet

(see Figure 3-1).

The

filtering

element

isn't

included with the

OF-lOOO.

You

must

purchase

the

filtering

element

separately

and

instal1

it

before using the

OF-lOOO

(see Section

4).

See

Section 3.3 for information

on

selecting

the

correct

filtering

element for your process.

If

the

OF-lOOO

is

5

feet

or

more

above

the

vacuum

pump,

it

is

sometimes

necessary to prime the gear

pump

on

the

OF-lOOO

before

it

will

start

(see

Section 5).

10

••

Y/II

~

IIII'~

,------------------------------------------------------------------

LEY

BOLD

Proceed as

follows,

to

install

the

OF-IOOO

onto a

TRIVAC

vane

pump.

See Appendix A

if

you

will

be

using

the

OF-IOOO

with

an

E

or

OK

Series

Rotary

Piston

Pump.

1.

If

not already done,

install

a

new

filtering

element

and

clean

oil

as follows.

On

a

dual-canister

OF-IOOO,

install

a

filter

element

into

each of the

two

canisters.

a.

WARNING:

Don't

remove

the cover

from

the

filter

housing unless

the gear

pump

is

turned

off.

Unscrew

the top nut

and

carefully

remove

the cover

from

the

filter

housing (see Figure 7-2).

b.

Install

the

correct

filtering

element (see Section

3.3)

into

the

filter

housing ensuring

that

the element

is

seated properly

around the bottom ring of the housing.

If

the

filtering

element

has

a handle, the handle should face up. .

c.

Pour the

correct

vacuum

oil

(see the

pump

identification

plate

or manual)

into

the

center

and

outside

of

the

filtering

element

until

the

oil

level

is

just

below

the machined step in the

housing (see Figure 9-3).

d.

Install

the cover onto the

filter

housing as follows:

(1

A

new

cover O-ring

comes

with each

filtering

element. Coat

the O-ring with the proper

oil

and

install

the

new

O-ring

(H5)

onto the

rim

of

the cover; the cover will

be

difficult

to

remove

if

the O-ring

hasn't

been

coated with

oil.

(2

IMPORTANT:

Failure

to

seat

the cover onto the

filtering

element could

result

in

oil

bypassing the

filtering

element.

An

improperly

installed

cover

could

also

result

in

an

oil

leak.

Fit

the cover onto the top of the

filter

housing

and

begin

tightening

the top nut.

The

cover

tilts

slightly

as

it

passes the

lead-in

chamfer of the housing.

Straighten

the

cover

and

then continue

tightening

the nut.

It

may

be

necessary to

straighten

the cover several times before

it

is

seated

on

the gasket

on

top of the

filtering

element.

Tighten the cover hand-tight (see Figure

9-3);

don't

use a

wrench

or channel lock

pliers

to

tighten

the top nut.

A properly

installed

cover will

be

approximately 1/16

to

3/16

inch

below

the top

rim

of the

filter

housing.

If

the cover

is

less

than 1/16 inch

below

the

rim

of

the housing,

it

means

that

the

filtering

element

isn't

installed

properly.

Ha th in ion onto 1

that

with

filtering

element; then attach the label to the

filter-housing

cover.

2. Shut

down

the

vaclium

pump.

11

~

~~~

LEY BOLD

------------------------------------------------------------------~

---~.~

Indicate.

Direction

of

011

Flow

OF·1000

(Top

View)

OF·1000

Gear

Pump

VACUUM

PUMP

(Top

View)

Sketch

of

an

OF-1000

Connected

to

a

Vacuum

Pump

3.

Remove

the

oil-fill

and

oil-drain

plugscrews

and

drain the

oil

from

the

vacuum

pump.

4.

Install

the quick-connect stem/elbow/gasket assembly (20/21/22)

into

the

oil

drain

port

of the

vane

pump

as follows (see

Figure

4-1).

a.

Remove

a quick-connect stem/elbow assembly (20/22)

from

one

of

the

OF-1000

hoses (18)

by

pulling

back

on

the spring-loaded

quick-connect coupler (15)

and

pulling

the stem (20)

away

from

the coupler (see Figure

4-1).

b. Place the gasket

(Part

No.

239-55-165)

from

the

vacuum

pump's

oil

drain/fill

plugscrews onto the elbow (22)

on

the

quick-connect stem (20) (see Figure

4-1).

c.

Screw

the stem/elbow/gasket assembly

into

the

oil-drain

port

of

the

vacuum

pump.

5. Pour

the

correct

vacuum

oil

through the

oil-fill

port

of the

vacuum

pump

until

the

oil

level reaches the top of the

vacuum

pump's

oil

sight

glass.

6. Repeat Step 4 except

install

a quick-connect stem/elbow/gasket

assembly

into

the

oil-fill

port

of the

vacuum

pump.

12

.

~

.-------

______

__

________________

__

_________________

.~_r~

LEYBOLD

FROM

VACUUM

PUMP

OIL

·

DRAIN

PORT

TO

VACUUM

PUMP

OIL·Flll

PORT

15 -QUICK-CONNECT COUPLER

18 -HOSE

-..,,0(--

+-

,

J.----~

10-2

.1

20 -QUICK-CONNECT STEM

21

-

FLAT

GASKET

22 -SWIVEL ELBOW

Figure 4-1 -Quick-Connect

Assembly

on

Ends

of

the

Hoses

7.

CAUTION:

Failure

to

connect the

OF-lOOO

hoses

to

the

correct

oil

ports

on

the

vacuum

pump

could

result

in

overfilling

of

the

vacuum

pump

with

oil.

Connect the

OF-IOOO

hoses as follows:

TO

OF-l000

GEAR

PUMP (2)

FROM

OF·l000

a. Connect the hose

from

the bottom of the

OF-IOOO

gear

pump

to

the

quick-connect stem (20)

on

the

vacuum

pump's

oil-drain

port.

b. Connect the hose

from

the

OF-lOOO

filter

housing

to

the

disconnect stem (20)

on

the

vacuum

pump's

oil-fill

port

(see

Fi

gure

7-1).

13

~

~~~

LEY

BOLD

~----------------------------------------------------------------~

8.

NOTE:

The

standard single-phase

motor

on

the gear

pump

can

run

at

115

or 208, 220/230

volts

at

50

or

60

Hz.*

To

change the

voltage of the motor,

install

the appropriate linecord

and

use the wiring diagram inside of the

motor

junction

box

to

change the connections in the

motor

junction

box.

CAUTION:

Failure to

check

the direction of

rotation

of the

gear-pump

motor

after

making

any

changes to the

electrical

connections

can

result

in

a}

overfilling

of the

vacuum

pump,

and

b)

the gear

pump

being

damaged

from

pumping

air.

Make

the

electrical

connection

and

check

the direction of

motor

rotation

as

follows (see Figure 7-1):

a.

Connect

the

OF-1000

to

a

power

outlet

that

matches

the voltage

requirements of the

gear-pump

motor

(2) (see

motor

nameplate).

b. Switch

ON

the

OF-lOaD

momentarily to check the direction of

rotation.

looking

from

the

fan

end

of

the

gear-pump

motor

(2),

the

motor

fan should turn counterclockwise.

c.

If

the fan

rotates

clockwise, disconnect the

power

and

correct

the rotation

by

reversing

two

of the input leads in the

motor

junction

box

(see the

motor

nameplate

tag).

* A gear

pump

with

an

explosion proof

motor

can

also

be

supplied

on

request.

14/15/16

·.~

~

"'...4

~-----------------------------------------------------------------

LEYBOLD

SECTION

5

START-UP

WARNING:

After

installing

a

new

filtering

element,

oil

displaces

air

trapped in the element.

This

air

bubbles through the

OF-1000

sight

glass

and

then

into

the

vacuum

pump

before

being expelled

from

the

pump's

exhaust

port.

Normally,

this

entrapped

air

doesn't

cause a

problem.

However,

if

you

are

pumping

pyrophoric gases,

it

could

react

with the

pyrophoric gas

and.

cause

an

explosion

or

fi

reo

Before

pumping

pyrophoric gas, seal

the

pump's

inlet,

switch

ON

the

OF-1000,

and

run the

pump

with nitrogen purging

for

1/2 hour

to

allow

all

of

the trapped

air

to

be

exhausted

from

the

oil

filter

and

vacuum

pump.

If

the

OF-lOOO

is

5

feet

or

more

above

the

vacuum

pump,

it

is

sometimes

necessary

to

prime the gear

pump

on

the

OF-lOOO

before

it

will

start.

To

prime the gear

pump,

remove

the pressure gauge,

fill

thp.

gear

pump

with the

correct

vacuum

oil,

and

reinstall

the pressure

gauge

(see Figure

3-1).

The

oil pressures change as follows during

start-up.

The

pressures

listed

below

are for the

single-canister

models; the corresponding pressures

for

the

dual-canister

models

are higher.

o psig

On

cold

start-up,

the

OF-IOOO

oil-pressure

gauge

reads

o psig

and

then increases as

air

in

the

OF-lOOO

is

displaced

by

oil.

30

to

50

psig

Once

the

~ir

is

displaced, the pressure

is

30

to

50

psig

. as the

OF

-1000

fi

lters

room

temperature

oil;

then, the

oil

pressure decreases

as

the

oil

warms

and

its

viscosity

decreases.

5 to

30

psig

When

the

pump

reaches operating temperature, the

normal

oil

pressure

is

in the 5

to

30

psig range.

>50

psig

If

the pressure then increases

above

50

psig,

it

means

that

the

filter

element

is

clogged

and

should

be

changed

or

that

flow

is

restricted

downstream

of the gear

pump.

17

~

~~.,~

LEYBOLD

---------------------------------------------------------------------,

Proceed

as

follows to

start

the system:

1. Ensure

that

the

OF-lOOO

hoses (18) are connected

correctly.

2.

CAUTION:

~n't

start

theOF-lOOO without

oil

in the

vacuum

pump

or

in the

OF-lOOO

filter

housing.

Switch

ON

the

OF-lOOO

using the toggle switch

on

the gear

pump

motor (see Figure

7-1).

3.

Check

the

OF-lOOO

filter

housing for

oil

leaks.

If

there

is

any

leakage,

tighten

the top nut

by

hand

until

the leak stops (see

Figure

7-2).

4.

As

the

air

is

displaced

from

the

OF-lOOO,

the

oil

level in the

vacuum

pump

decreases.

Once

the pressure

on

the

OF-lOOO

gauge

reaches

30

to

50

psig

refill

the

vacuum

pump

as

follows:

a.

Remove

the

extra

oil-fill

plug

from

the top

of

the

vacuum

pump.

b. Pour the

correct

vacuum

oil

(see

vacuum

pump

identification

plate

or manual)

into

the

vacuum

pump's

oil-fill

port

until

the

oil

level reaches the middle

of

the

vacuum

pump's

oil-sight

glass.

c.

Reinstall

the

oil-fill

plug

and

switch

ON

the

vacuum

pump.

d.

After

the

vacuum

pump

has

run

for

30

minutes, recheck the

oil

level

in

the

vacuum

pump's

sight

glass;

the

oil

level should

be

near the middle

of

the

sight

glass while the

vacuum

pump

is

running.

e.

If

the

oil

level

is

low,

turn

off

the

vacuum

pump,

and

repeat

Steps

4a

through

4c

to

add

some

additional

oil.

18

LEYBOLD OF-1000 User manual

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