salmson S series, Installation And Operating Instructions Manual

ENGLISH

13

quality

is

not

sufficient,

add

shims

between

ground

and

base

plate.

Distortion

on

base

plate

surface

should

be

limited

to

0,4mm/m

after

the

baseplate

is

definitively

fastened

to

foundations.

Coupling

alignment

is

checked

before

shipment

(pumps

and

motor

deliver

ed

on

a

common

baseplate)

If

coupling

is

not

correctly

aligned

after

installation

works

are

done

this

indicates

that

the

baseplate

has

become

twisted

and

leveling

should

be

corrected

by

re

‐

shimming.

Even

if

foundation

works

have

been

done

with

care,

it

is

necessary

to

check

coupling

alignment

after

the

baseplate

is

definitively

secured

to

the

foundation.

7.1.2

ANCHORING

Chemical

anchoring

device

should

be

preferred

to

fasten

a

baseplate

on

an

existing

foundation.

Anchor

bolts

can

be

used

if

foundation

block

is

to

be

built.

1

–

Anchor

bolt

2

–

Baseplate

3

–

Concrete

foundation

block

Folded

steel

fabricated

baseframes

will

be

grouted

to

insure

its

rigidity.

Using

of

shrink

free

grout

is

the

most

efficient.

Grouting

ensures

correct

positioning

of

the

baseframe

and

reduces

vibrations

transmission

to

civil

work.

Foundation

work

surface

preparation

and

leveling

of

baseframe

will

be

performed

in

the

state

of

the

art

and

should

be

done

before

grouting

of

the

baseplate.

Foundation

bolts

should

be

fully

tightened

only

after

the

grout

has

cured.

Installation

without

foundation

:

1

–

Intermediate

plate

2

–

Nut

3

–

Leveling

element

4

–

Foot

base

5

–

Washer

6

–

Fastening

nut

7

–

Washer

8

–

Baseplate

fastening

screw

7.1.3

POSITIONING

Pump

baseplate

(cast

iron

base

plate

or

fabricated

steel

baseframe)

should

be

installed

horizontally

to

ensure

bearings

lifetime

and

proper

flow

of

pumped

fluid.

7.1.4

COUPLING

ALIGNMENT

Pumpsets

assembled

with

a

flexible

coupling

(except

pump

variants

equipped

with

a

IEC

lantern)

must

be

aligned

after

the

baseframe

has

been

definitively

fastened

to

the

foundation.

Use

low

thickness

shims

(0,2

to

1

mm)

to

modify

coupling

alignment.

Adjust

the

motor

height

first.

Sometimes

it

is

necessary

to

add

shims

under

pump

feet

too.

Aligment

of

coupling

should

be

performed

with

particular

care

when

the

pumpset

is

installed

in

an

hazardous

area.

Correct

alignment

will

avoid

abnormal

increasing

of

the

pump

and

motor

ball

bearings

temperature.

Thermal

expansion

:

the

pump

and

motor

will

normally

have

to

be

aligned

at

ambient

temperature

with

an

allowance

for

thermal

expansion

at

operating

temperature.

In

pump

installation

involving

high

liquid

temperatures,

alignment

should

be

checked

again

when

operating

temperature

is

reached

(pump

and

piping).

Alignment

quality

should

be

checked

just

after

machine

shut

down.

Pump

and

driver

must

be

isolated

electrically

before

alignment

operations

are

performed.

Pump

and

motor

were

aligned

before

dispatch.

If

it

is

necessary

to

use

very

thick

shims

to

adjust

coupling

alignment

on

site

this

means

that

the

baseplate

is

twisted.

Leveling

has

to

be

modified.

Checking

the

coupling

alignment

:

Check

distance

between

the

two

half

couplings.

Check

radial

and

axial

deviation.

Several

types

of

flexible

couplings

can

be

used.

Refer

to

coupling

operating

instructions

to

know

adjustment

values

and

misalignment

limits.

Several

methods

can

be

used

to

make

coupling

alignment.

Choice

of

a

method

will

depend

on

the

type

of

equipments

available

on

site.

Two

operating

methods

are

briefly

described

hereafter.

They

can

be

used

if

basic

metrology

equipments

are

available

:

Using

a

straight

‐

edge

and

a

caliper

:

Using

a

dial

gauge

:

When

checking

parallel

alignment,

the

total

indicator

read

‐

out

shown

is

twice

the

value

of

the

actual

shaft

displacement.

Align

in

the

vertical

plane

first,

then

horizontally

by

moving

the

motor.

Lifetime

of

ball

bearing

and

coupling

flexible

part

as

well

as

pumpset

noise

level

will

depend

on

the

alignment

quality.

Coupling

alignment

is

not

necessary

when

a

IEC

adaptation

lantern

is

used.

Both

motor

and

pumps

shaft

are

aligned

by

construction.